[MDEV-19992] Galera test failure on MW-286 Created: 2019-07-09  Updated: 2019-12-18  Resolved: 2019-09-19

Status: Closed
Project: MariaDB Server
Component/s: Galera, Tests
Affects Version/s: 10.2, 10.3, 10.4
Fix Version/s: 10.2.28, 10.3.19, 10.4.9

Type: Bug Priority: Major
Reporter: Jan Lindström (Inactive) Assignee: Stepan Patryshev (Inactive)
Resolution: Fixed Votes: 0
Labels: bad_test, galera, tests


 Description   

galera.MW-286 'innodb'                   w2 [ fail ]
        Test ended at 2019-07-08 23:31:33
 
CURRENT_TEST: galera.MW-286
mysqltest: At line 26: query 'ALTER TABLE t1 ADD PRIMARY KEY (f1)' failed with wrong errno 2013: 'Lost connection to MySQL server during query', instead of 0...
 
The result from queries just before the failure was:
connection node_1;
CREATE TABLE ten (f1 INTEGER) Engine=InnoDB;
INSERT INTO ten VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
CREATE TABLE t1 (f1 INTEGER) Engine=InnoDB;
INSERT INTO t1 (f1) SELECT 000000 + (10000 * a1.f1) + (1000 * a2.f1) + (100 * a3.f1) + (10 * a4.f1) + a5.f1 FROM ten AS a1, ten AS a2, ten AS a3, ten AS a4, ten AS a5;
INSERT INTO t1 (f1) SELECT 100000 + (10000 * a1.f1) + (1000 * a2.f1) + (100 * a3.f1) + (10 * a4.f1) + a5.f1 FROM ten AS a1, ten AS a2, ten AS a3, ten AS a4, ten AS a5;;
connection node_2;
SET GLOBAL wsrep_desync = TRUE;
SET wsrep_on = FALSE;
ALTER TABLE t1 ADD PRIMARY KEY (f1);
 
 
Server [mysqld.2 - pid: 2436, winpid: 2436, exit: 256] failed during test run
Server log from this test:
----------SERVER LOG START-----------
2019-07-08 23:14:41 140198917748992 [Warning] WSREP: option --wsrep-causal-reads is deprecated
2019-07-08 23:14:41 140198917748992 [Note] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld (mysqld 10.2.26-MariaDB-log) starting as process 2437 ...
2019-07-08 23:14:41 140198917748992 [Warning] Could not increase number of max_open_files to more than 1024 (request: 4186)
2019-07-08 23:14:41 140198917748992 [Warning] Changed limits: max_open_files: 1024  max_connections: 151 (was 151)  table_cache: 421 (was 2000)
2019-07-08 23:14:41 140198917748992 [Warning] setrlimit could not change the size of core files to 'infinity';  We may not be able to generate a core file on signals
2019-07-08 23:14:41 140198917748992 [Warning] WSREP: wsrep_sst_receive_address is set to '127.0.0.1:16027' which makes it impossible for another host to reach this one. Please set it to the address which this node can be connected at by other cluster members.
2019-07-08 23:14:41 140198917748992 [Note] WSREP: Read nil XID from storage engines, skipping position init
2019-07-08 23:14:41 140198917748992 [Note] WSREP: wsrep_load(): loading provider library '/usr/lib/galera/libgalera_smm.so'
2019-07-08 23:14:41 140198917748992 [Note] WSREP: wsrep_load(): Galera 25.3.26(r3857) by Codership Oy <info@codership.com> loaded successfully.
2019-07-08 23:14:41 140198917748992 [Note] WSREP: CRC-32C: using "slicing-by-8" algorithm.
2019-07-08 23:14:41 140198917748992 [Warning] WSREP: Could not open state file for reading: '/mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data//grastate.dat'
2019-07-08 23:14:41 140198917748992 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe_to_bootstrap: 1
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Passing config to GCS: base_dir = /mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data/; base_host = 127.0.0.1; base_port = 16025; cert.log_conflicts = no; cert.optimistic_pa = yes; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT30S; evs.install_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 4; evs.stats_report_period = PT1M; evs.suspect_timeout = PT10S; evs.user_send_window = 2; evs.view_forget_timeout = PT24H; gcache.dir = /mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data/; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1.0; gcs.fc_limit = 16; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.
2019-07-08 23:14:44 140198917748992 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> 00000000-0000-0000-0000-000000000000:-1
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
2019-07-08 23:14:44 140198917748992 [Note] WSREP: wsrep_sst_grab()
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Start replication
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
2019-07-08 23:14:44 140198917748992 [Note] WSREP: protonet asio version 0
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Using CRC-32C for message checksums.
2019-07-08 23:14:44 140198917748992 [Note] WSREP: backend: asio
2019-07-08 23:14:44 140198917748992 [Note] WSREP: gcomm thread scheduling priority set to other:0 
2019-07-08 23:14:44 140198917748992 [Warning] WSREP: access file(/mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data//gvwstate.dat) failed(No such file or directory)
2019-07-08 23:14:44 140198917748992 [Note] WSREP: restore pc from disk failed
2019-07-08 23:14:44 140198917748992 [Note] WSREP: GMCast version 0
2019-07-08 23:14:44 140198917748992 [Note] WSREP: (b2d9d3d7, 'tcp://0.0.0.0:16025') listening at tcp://0.0.0.0:16025
2019-07-08 23:14:44 140198917748992 [Note] WSREP: (b2d9d3d7, 'tcp://0.0.0.0:16025') multicast: , ttl: 1
2019-07-08 23:14:44 140198917748992 [Note] WSREP: EVS version 0
2019-07-08 23:14:44 140198917748992 [Note] WSREP: gcomm: connecting to group 'my_wsrep_cluster', peer '127.0.0.1:16022'
2019-07-08 23:14:44 140198917748992 [Note] WSREP: (b2d9d3d7, 'tcp://0.0.0.0:16025') connection established to b2ceb160 tcp://127.0.0.1:16022
2019-07-08 23:14:44 140198917748992 [Note] WSREP: (b2d9d3d7, 'tcp://0.0.0.0:16025') turning message relay requesting on, nonlive peers: 
2019-07-08 23:14:44 140198917748992 [Note] WSREP: declaring b2ceb160 at tcp://127.0.0.1:16022 stable
2019-07-08 23:14:44 140198917748992 [Note] WSREP: Node b2ceb160 state prim
2019-07-08 23:14:44 140198917748992 [Note] WSREP: view(view_id(PRIM,b2ceb160,2) memb {
	b2ceb160,0
	b2d9d3d7,0
} joined {
} left {
} partitioned {
})
2019-07-08 23:14:44 140198917748992 [Note] WSREP: save pc into disk
2019-07-08 23:14:45 140198917748992 [Note] WSREP: gcomm: connected
2019-07-08 23:14:45 140198917748992 [Note] WSREP: Changing maximum packet size to 64500, resulting msg size: 32636
2019-07-08 23:14:45 140198917748992 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
2019-07-08 23:14:45 140198917748992 [Note] WSREP: Opened channel 'my_wsrep_cluster'
2019-07-08 23:14:45 140198917748992 [Note] WSREP: Waiting for SST to complete.
2019-07-08 23:14:45 140198554846976 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2
2019-07-08 23:14:45 140198554846976 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
2019-07-08 23:14:45 140198554846976 [Note] WSREP: STATE EXCHANGE: sent state msg: b32c11d3-a1f7-11e9-9cfd-42a041ccf66e
2019-07-08 23:14:45 140198554846976 [Note] WSREP: STATE EXCHANGE: got state msg: b32c11d3-a1f7-11e9-9cfd-42a041ccf66e from 0 (ubuntu-xenial-amd64)
2019-07-08 23:14:45 140198554846976 [Note] WSREP: STATE EXCHANGE: got state msg: b32c11d3-a1f7-11e9-9cfd-42a041ccf66e from 1 (ubuntu-xenial-amd64)
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Quorum results:
	version    = 4,
	component  = PRIMARY,
	conf_id    = 1,
	members    = 1/2 (joined/total),
	act_id     = 0,
	last_appl. = -1,
	protocols  = 0/9/3 (gcs/repl/appl),
	group UUID = b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Flow-control interval: [23, 23]
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Trying to continue unpaused monitor
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 0)
2019-07-08 23:14:45 140198545839872 [Note] WSREP: State transfer required: 
	Group state: b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d:0
	Local state: 00000000-0000-0000-0000-000000000000:-1
2019-07-08 23:14:45 140198545839872 [Note] WSREP: New cluster view: global state: b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d:0, view# 2: Primary, number of nodes: 2, my index: 1, protocol version 3
2019-07-08 23:14:45 140198545839872 [Warning] WSREP: Gap in state sequence. Need state transfer.
2019-07-08 23:14:45 140198545245952 [Note] WSREP: Running: 'wsrep_sst_rsync --role 'joiner' --address '127.0.0.1:16027' --datadir '/mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data/'  --defaults-file '/mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/my.cnf' --defaults-group-suffix '.2'  --parent '2437'  '' --binlog-index 'mysqld-bin.index''
2019-07-08 23:14:45 140198545839872 [Note] WSREP: Prepared SST request: rsync|127.0.0.1:16027/rsync_sst
2019-07-08 23:14:45 140198545839872 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
2019-07-08 23:14:45 140198545839872 [Note] WSREP: REPL Protocols: 9 (4, 2)
2019-07-08 23:14:45 140198545839872 [Note] WSREP: Assign initial position for certification: 0, protocol version: 4
2019-07-08 23:14:45 140198597170944 [Note] WSREP: Service thread queue flushed.
2019-07-08 23:14:45 140198545839872 [Warning] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d): 1 (Operation not permitted)
	 at galera/src/replicator_str.cpp:prepare_for_IST():482. IST will be unavailable.
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Member 1.0 (ubuntu-xenial-amd64) requested state transfer from '*any*'. Selected 0.0 (ubuntu-xenial-amd64)(SYNCED) as donor.
2019-07-08 23:14:45 140198554846976 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 0)
2019-07-08 23:14:45 140198545839872 [Note] WSREP: Requesting state transfer: success, donor: 0
2019-07-08 23:14:45 140198545839872 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d:0
2019-07-08 23:14:47 140198563456768 [Note] WSREP: (b2d9d3d7, 'tcp://0.0.0.0:16025') turning message relay requesting off
2019-07-08 23:14:47 140198554846976 [Note] WSREP: 0.0 (ubuntu-xenial-amd64): State transfer to 1.0 (ubuntu-xenial-amd64) complete.
2019-07-08 23:14:47 140198554846976 [Note] WSREP: Member 0.0 (ubuntu-xenial-amd64) synced with group.
WSREP_SST: [INFO] Joiner cleanup. rsync PID: 2528 (20190708 23:14:48.076)
WSREP_SST: [INFO] Joiner cleanup done. (20190708 23:14:48.634)
2019-07-08 23:14:48 140198917748992 [Note] WSREP: SST complete, seqno: 0
2019-07-08 23:14:48 140198917748992 [Note] Plugin 'SEQUENCE' is disabled.
2019-07-08 23:14:48 140198917748992 [Note] Plugin 'partition' is disabled.
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Uses event mutexes
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Using Linux native AIO
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Number of pools: 1
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Using generic crc32 instructions
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Initializing buffer pool, total size = 8M, instances = 1, chunk size = 8M
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Completed initialization of buffer pool
2019-07-08 23:14:48 140198451508992 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Highest supported file format is Barracuda.
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Starting crash recovery from checkpoint LSN=1634023
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: 128 out of 128 rollback segments are active.
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-07-08 23:14:48 140198917748992 [Note] InnoDB: Waiting for purge to start
2019-07-08 23:14:49 140198917748992 [Note] InnoDB: 5.7.26 started; log sequence number 1634032
2019-07-08 23:14:49 140198354523904 [Note] InnoDB: Loading buffer pool(s) from /mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/2/mysqld.2/data/ib_buffer_pool
2019-07-08 23:14:49 140198354523904 [Note] InnoDB: Buffer pool(s) load completed at 190708 23:14:49
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_SYS_DATAFILES' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_SYS_TABLESTATS' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_TABLESPACES_SCRUBBING' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_CMP' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_DELETED' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_CMP_RESET' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_LOCK_WAITS' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_TABLESPACES_ENCRYPTION' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_CMPMEM_RESET' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'FEEDBACK' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_INDEX_TABLE' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_CMP_PER_INDEX_RESET' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'user_variables' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_INDEX_CACHE' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_BEING_DELETED' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_DEFAULT_STOPWORD' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_FT_CONFIG' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_SYS_TABLESPACES' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_MUTEXES' is disabled.
2019-07-08 23:14:49 140198917748992 [Note] Plugin 'INNODB_SYS_SEMAPHORE_WAITS' is disabled.
2019-07-08 23:14:49 140198917748992 [Warning] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: unknown variable 'loose-feedback-debug-startup-interval=20'
2019-07-08 23:14:49 140198917748992 [Warning] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: unknown variable 'loose-feedback-debug-first-interval=60'
2019-07-08 23:14:49 140198917748992 [Warning] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: unknown variable 'loose-feedback-debug-interval=60'
2019-07-08 23:14:49 140198917748992 [Warning] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: unknown option '--loose-pam-debug'
2019-07-08 23:14:49 140198917748992 [Warning] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: unknown variable 'loose-debug-sync-timeout=300'
2019-07-08 23:14:49 140198917748992 [Note] Server socket created on IP: '127.0.0.1'.
2019-07-08 23:14:49 140198917748992 [Note] WSREP: Signalling provider to continue.
2019-07-08 23:14:49 140198917748992 [Note] WSREP: SST received: b2d3a672-a1f7-11e9-a6ba-3b3a63589a4d:0
2019-07-08 23:14:49 140198554846976 [Note] WSREP: 1.0 (ubuntu-xenial-amd64): State transfer from 0.0 (ubuntu-xenial-amd64) complete.
2019-07-08 23:14:49 140198554846976 [Note] WSREP: Shifting JOINER -> JOINED (TO: 0)
2019-07-08 23:14:49 140198554846976 [Note] WSREP: Member 1.0 (ubuntu-xenial-amd64) synced with group.
2019-07-08 23:14:49 140198554846976 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0)
2019-07-08 23:14:49 140198545839872 [Note] WSREP: Synchronized with group, ready for connections
2019-07-08 23:14:49 140198545839872 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
2019-07-08 23:14:49 140198917748992 [Note] Reading of all Master_info entries succeeded
2019-07-08 23:14:49 140198917748992 [Note] Added new Master_info '' to hash table
2019-07-08 23:14:49 140198917748992 [Note] /mnt/buildbot/build/mariadb-10.2.26/sql/mysqld: ready for connections.
Version: '10.2.26-MariaDB-log'  socket: '/mnt/buildbot/build/mariadb-10.2.26/mysql-test/var/tmp/2/mysqld.2.sock'  port: 16021  MariaDB Server
2019-07-08 23:14:58 140198554846976 [Note] WSREP: Member 1.0 (ubuntu-xenial-amd64) desyncs itself from group
2019-07-08 23:14:58 140198554846976 [Note] WSREP: Shifting SYNCED -> DONOR/DESYNCED (TO: 4)
2019-07-08 23:19:05 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 241.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:05 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 241.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:05 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 241.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:05 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 241.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:05 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 241.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:05 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 241.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:05 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 241.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:05 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 241.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:05 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 239.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
InnoDB: ###### Starts InnoDB Monitor for 30 secs to print diagnostic info:
InnoDB: Pending reads 0, writes 0
 
=====================================
2019-07-08 23:19:08 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 65 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 244.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 244.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 244.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 244.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 242.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
 
=====================================
2019-07-08 23:19:28 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 264.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 264.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 264.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 264.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 262.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
InnoDB: ###### Diagnostic info printed to the standard error stream
2019-07-08 23:19:36 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 272.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:36 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 272.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:36 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 272.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:36 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 272.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:36 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 270.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:36 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 272.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:36 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 272.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:19:36 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 272.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:36 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 272.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:19:36 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 270.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
InnoDB: ###### Starts InnoDB Monitor for 30 secs to print diagnostic info:
InnoDB: Pending reads 0, writes 0
 
=====================================
2019-07-08 23:19:48 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 284.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 284.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 284.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 284.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 282.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
InnoDB: ###### Diagnostic info printed to the standard error stream
2019-07-08 23:20:07 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 303.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:07 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 303.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:07 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 303.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:07 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 303.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:07 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 301.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:07 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 303.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:07 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 303.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:07 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 303.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:07 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 303.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:07 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 301.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
InnoDB: ###### Starts InnoDB Monitor for 30 secs to print diagnostic info:
InnoDB: Pending reads 0, writes 0
 
=====================================
2019-07-08 23:20:08 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 304.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 304.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 304.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 304.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 302.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
 
=====================================
2019-07-08 23:20:28 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 324.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 324.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 324.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 324.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 322.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
InnoDB: ###### Diagnostic info printed to the standard error stream
2019-07-08 23:20:38 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 334.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:38 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 334.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:38 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 334.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:38 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 334.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:38 140198422898432 [Warning] InnoDB: A long semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 332.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:38 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198371731200 has waited at row0purge.cc line 982 for 334.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:38 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198380308224 has waited at row0purge.cc line 982 for 334.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
2019-07-08 23:20:38 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 334.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:38 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 334.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
2019-07-08 23:20:38 140198422898432 [Note] InnoDB: A semaphore wait:
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 332.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
InnoDB: ###### Starts InnoDB Monitor for 30 secs to print diagnostic info:
InnoDB: Pending reads 0, writes 0
 
=====================================
2019-07-08 23:20:48 0x7f827cb1d700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 9 srv_idle
srv_master_thread log flush and writes: 16
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36
--Thread 140198371731200 has waited at row0purge.cc line 982 for 344.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198380308224 has waited at row0purge.cc line 982 for 344.00 seconds the semaphore:
S-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
--Thread 140198545839872 has waited at lock0lock.cc line 6711 for 344.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198299240192 has waited at lock0lock.cc line 6594 for 344.00 seconds the semaphore:
Mutex at 0x634000080840, Mutex LOCK_SYS created lock0lock.cc:473, lock var 2
 
--Thread 140198440224512 has waited at srv0srv.cc line 2078 for 342.00 seconds the semaphore:
X-lock on RW-latch at 0x3108840 created in file dict0dict.cc line 1100
a writer (thread id 140198299240192) has reserved it in mode  exclusive
number of readers 0, waiters flag 1, lock_word: 0
Last time read locked in file row0purge.cc line 982
Last time write locked in file handler0alter.cc line 8284
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 12, OS waits 6
RW-excl spins 0, rounds 300, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 12.00 RW-shared, 300.00 RW-excl, 30.00 RW-sx
FAIL TO OBTAIN LOCK MUTEX, SKIP LOCK INFO PRINTING
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (write thread)
I/O thread 5 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0] , aio writes: [0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
331 OS file reads, 803 OS file writes, 236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
Hash table size 2267, node heap has 1 buffer(s)
Hash table size 2267, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 7317991
Log flushed up to   7317991
Pages flushed up to 7317991
Last checkpoint at  5997042
0 pending log flushes, 0 pending chkp writes
57 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 8601600
Dictionary memory allocated 29952
Buffer pool size   512
Free buffers       100
Database pages     411
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 191, created 586, written 655
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=2437, Main thread ID=140198440224512, state: enforcing dict cache limit
Number of rows inserted 100010, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================



 Comments   
Comment by Stepan Patryshev (Inactive) [ 2019-09-17 ]

Closing it as not reproduced. Verified it on the following 10.2, 10.3, and 10.4 versions:

All binaries are non-debug built from the sources:

MariaDB Server 10.2.28-MariaDB-debug: branch 10.2, commit 2a98d0b5ca2324405d65415423258cc088fa2f8a.
Galera Lib3 25.3.28(r3875): branch mariadb-3.x, commit 92d6990b65259d12327c211e6658cf1c0c818cfb.

MariaDB Server 10.3.19-MariaDB-debug: branch 10.3, commit 90a9c4cae74d2ef1008e3f216026b7fd2697e46b.
Galera Lib3 25.3.28(r3875): branch mariadb-3.x, commit 92d6990b65259d12327c211e6658cf1c0c818cfb.

MariaDB Server 10.4.9-MariaDB-debug: branch 10.4, commit efefafd02f72b3d56f82a29a9fa4a100932d55c0.
Galera Lib4 26.4.3(r4535): branch mariadb-4.x, commit 752664dc3c7065d8e0c73ac99d0028a5f84eb250.

Comment by Stepan Patryshev (Inactive) [ 2019-09-18 ]

Reopening it to enable the MTR on buildbot.

Comment by Stepan Patryshev (Inactive) [ 2019-09-19 ]

Closing it since all checks have passed on the buildbot for my commit b3a7c07eae000f20c62812ecf7a8b9349aedc8a1 to enable this MTR.

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