[MDEV-9296] MySQL replication with Galera Cluster Created: 2015-12-16  Updated: 2016-02-10  Resolved: 2016-02-10

Status: Closed
Project: MariaDB Server
Component/s: Galera, Replication
Affects Version/s: 10.1.9
Fix Version/s: N/A

Type: Bug Priority: Major
Reporter: FRANCOIS Assignee: Unassigned
Resolution: Incomplete Votes: 0
Labels: need_feedback
Environment:

Debian GNU/Linux 7 (wheezy)

  1. uname -a
    Linux int-tel-mysql-th2-03 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u3 x86_64 GNU/Linux

Issue Links:
Relates
relates to MDEV-9401 wsrep_forced_binlog_format With Binlo... Closed

 Description   

MariaDB [(none)]>
MariaDB [(none)]> SET GLOBAL gtid_slave_pos='1-101-1050,10-103-166151';
ERROR 2013 (HY000): Lost connection to MySQL server during query
MariaDB [(none)]>
MariaDB [(none)]> SELECT @@GLOBAL.gtid_slave_pos;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/srv/cluster/tmp/mysqld.sock' (111 "Connection refused")
ERROR: Can't connect to the server
 
unknown [(none)]>
unknown [(none)]> Bye

LOG ERROR :

2015-12-15 16:42:31 140628723922688 [Note] WSREP: Service thread queue flushed.
2015-12-15 16:42:31 140628641969920 [Note] WSREP: Assign initial position for certification: 0, protocol version: 3
2015-12-15 16:42:31 140628723922688 [Note] WSREP: Service thread queue flushed.
2015-12-15 16:42:31 140628641969920 [Note] WSREP: Synchronized with group, ready for connections
2015-12-15 16:42:31 140628641969920 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
2015-12-15 16:42:31 140637492361056 [Note] Reading of all Master_info entries succeded
2015-12-15 16:42:31 140637492361056 [Note] Added new Master_info '' to hash table
2015-12-15 16:42:31 140637492361056 [Note] /opt/mariadb/bin/mysqld: ready for connections.
Version: '10.1.9-MariaDB-log'  socket: '/srv/cluster/tmp/mysqld.sock'  port: 3306  MariaDB Server
2015-12-15 16:48:05 140626764977920 [Note] Master connection name: ''  Master_info_file: 'master.info'  Relay_info_file: 'relay-log.info'
2015-12-15 16:48:06 140626764977920 [Note] 'CHANGE MASTER TO executed'. Previous state master_host='', master_port='3306', master_log_file='', master_log_pos='4'. New state master_host='xxx.xxx.xxx.xxx', master_port='3306', master_log_file='', master_log_pos='4'.
2015-12-15 16:48:06 140626764977920 [Note] Previous Using_Gtid=No. New Using_Gtid=Slave_Pos
151215 16:48:52 [ERROR] mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
 
To report this bug, see http://kb.askmonty.org/en/reporting-bugs
 
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
 
Server version: 10.1.9-MariaDB-log
key_buffer_size=10485760
read_buffer_size=1048576
max_used_connections=1
max_threads=102
thread_count=8
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 221198 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
 
Thread pointer: 0x0x7fe63e22d008
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x7fe6385f4e08 thread_stack 0x48000
mysys/stacktrace.c:247(my_print_stacktrace)[0xbf822e]
sql/signal_handler.cc:160(handle_fatal_signal)[0x760e24]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xf0a0)[0x7fe8b78370a0]
mysys/my_bitmap.c:600(bitmap_bits_set)[0xbee820]
sql/rpl_record.cc:68(pack_row(TABLE*, st_bitmap const*, unsigned char*, unsigned char const*))[0x86256d]
sql/sql_class.cc:6178(THD::binlog_write_row(TABLE*, bool, unsigned char const*))[0x57ca66]
sql/log_event.h:4567(Write_rows_log_event::binlog_row_logging_function(THD*, TABLE*, bool, unsigned char const*, unsigned char const*))[0x76c0cf]
sql/handler.cc:5757(binlog_log_row)[0x7679a0]
sql/handler.cc:5885(handler::ha_write_row(unsigned char*))[0x769cf3]
sql/rpl_gtid.cc:596(rpl_slave_state::record_gtid(THD*, rpl_gtid const*, unsigned long long, bool, bool))[0x6e2c20]
sql/rpl_gtid.cc:1094(rpl_slave_state::load(THD*, char*, unsigned long, bool, bool))[0x6e510d]
sql/sql_repl.cc:4477(rpl_gtid_pos_update(THD*, char*, unsigned long))[0x5cc583]
sql/sys_vars.cc:1631(Sys_var_gtid_slave_pos::global_update(THD*, set_var*))[0x6a2a62]
sql/set_var.cc:199(sys_var::update(THD*, set_var*))[0x52f484]
sql/set_var.cc:795(set_var::update(THD*))[0x52fd4d]
sql/set_var.cc:696(sql_set_variables(THD*, List<set_var_base>*, bool))[0x52f039]
sql/sql_parse.cc:4295(mysql_execute_command(THD*))[0x5b2fd0]
sql/sql_parse.cc:7302(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x5b7ed9]
sql/sql_parse.cc:7126(wsrep_mysql_parse)[0x5b7f68]
sql/sql_parse.cc:1489(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x5ba035]
sql/sql_parse.cc:1111(do_command(THD*))[0x5bb2f7]
sql/sql_connect.cc:1349(do_handle_one_connection(THD*))[0x689883]
sql/sql_connect.cc:1263(handle_one_connection)[0x689aa2]
perfschema/pfs.cc:1863(pfs_spawn_thread)[0xafa679]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x6b50)[0x7fe8b782eb50]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7fe8b655b95d]
 
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x7fe637e3d020): is an invalid pointer
Connection ID (thread ID): 13
Status: NOT_KILLED
 
Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off,exists_to_in=on
 
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
151215 16:48:54 mysqld_safe Number of processes running now: 0
151215 16:48:54 mysqld_safe WSREP: not restarting wsrep node automatically
151215 16:48:54 mysqld_safe mysqld from pid file /srv/cluster/tmp/mysqld.pid ended



 Comments   
Comment by Elena Stepanova [ 2015-12-26 ]

Hi,

It's not clear from the description what your actual setup is, how Galera cluster is involved, etc.
Could you please describe your replication topology and also provide cnf file(s) from participating servers?

Thanks.

Comment by Elena Stepanova [ 2016-02-10 ]

Please comment to re-open if you have further information on the issue.

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