MariaDB MaxScale  /maxscale/log/maxscale.log  Wed Aug 24 18:04:09 2022
------------------------------------------------------------------------
2022-08-24 18:04:09   notice : The systemd watchdog is Enabled. Internal timeout = 30s
2022-08-24 18:04:09   notice : Worker message queue size: 1MiB
2022-08-24 18:04:09   notice : Using up to 2.33GiB of memory for query classifier cache
2022-08-24 18:04:09   notice : syslog logging is disabled.
2022-08-24 18:04:09   notice : maxlog logging is enabled.
2022-08-24 18:04:09   notice : Host: 'ppfmdx01' OS: Linux@3.10.0-1160.2.2.el7.x86_64, #1 SMP Sat Oct 17 05:06:47 UTC 2020, x86_64 with 8 processor cores.
2022-08-24 18:04:09   notice : Total usable main memory: 15.51GiB.
2022-08-24 18:04:09   notice : MariaDB MaxScale 6.2.4 started (Commit: 6e1317be296490366b7bf11b8e9b1864acc365d6)
2022-08-24 18:04:09   notice : MaxScale is running in process 20587
2022-08-24 18:04:09   notice : Configuration file: /etc/maxscale.cnf
2022-08-24 18:04:09   notice : Log directory: /maxscale/log
2022-08-24 18:04:09   notice : Data directory: /var/lib/maxscale
2022-08-24 18:04:09   notice : Module directory: /usr/lib64/maxscale
2022-08-24 18:04:09   notice : Service cache: /var/cache/maxscale
2022-08-24 18:04:09   notice : Working directory: /maxscale/log
2022-08-24 18:04:09   notice : Module 'qc_sqlite' loaded from '/usr/lib64/maxscale/libqc_sqlite.so'.
2022-08-24 18:04:09   notice : Query classification results are cached and reused. Memory used per thread: 297.84MiB
2022-08-24 18:04:09   notice : Using encrypted passwords. Encryption key read from '/var/lib/maxscale/.secrets'.
2022-08-24 18:04:09   notice : MaxScale started with 8 worker threads.
2022-08-24 18:04:09   notice : Loading /etc/maxscale.cnf.
2022-08-24 18:04:09   notice : /etc/maxscale.cnf.d does not exist, not reading.
2022-08-24 18:04:09   notice : Module 'mariadbmon' loaded from '/usr/lib64/maxscale/libmariadbmon.so'.
2022-08-24 18:04:09   notice : Module 'hintfilter' loaded from '/usr/lib64/maxscale/libhintfilter.so'.
2022-08-24 18:04:09   notice : Module 'readwritesplit' loaded from '/usr/lib64/maxscale/libreadwritesplit.so'.
2022-08-24 18:04:09   notice : Started REST API on [0.0.0.0]:8989
2022-08-24 18:04:09   notice : 'server1' sent version string '10.4.18-MariaDB-log'. Detected type: 'MariaDB', version: 10.4.18.
2022-08-24 18:04:09   notice : 'server3' sent version string '10.4.18-MariaDB-log'. Detected type: 'MariaDB', version: 10.4.18.
2022-08-24 18:04:09   notice : 'server2' sent version string '10.4.18-MariaDB-log'. Detected type: 'MariaDB', version: 10.4.18.
2022-08-24 18:04:09   notice : Server 'server3' charset: utf8mb4
2022-08-24 18:04:09   notice : Server 'server2' charset: utf8mb4
2022-08-24 18:04:09   notice : Server 'server1' charset: utf8mb4
2022-08-24 18:04:09   notice : Starting a total of 1 services...
2022-08-24 18:04:09   notice : (RW_Listener); Listening for connections at [0.0.0.0]:2866
2022-08-24 18:04:09   notice : Service 'RW_Service' started (1/1)
2022-08-24 18:04:09   notice : Read 34 user@host entries from 'server1' for service 'RW_Service'.
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:11   alert  : (10) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:11   alert  : (10) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:11   alert  : (10) (RW_Service); DCB: 0x7f33080222e0 Session: 10 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (1255) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (1255) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (1255) (RW_Service); DCB: 0x7f33202fca40 Session: 1255 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (559) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (559) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (559) (RW_Service); DCB: 0x7f33181a0d50 Session: 559 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (1418) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (1418) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (1418) (RW_Service); DCB: 0x7f33003d1e20 Session: 1418 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (1569) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (1569) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (1569) (RW_Service); DCB: 0x7f3304392630 Session: 1569 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (898) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (898) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (898) (RW_Service); DCB: 0x7f331c215180 Session: 898 Service: RW_Service
alert  : MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)


2022-08-24 18:04:13   alert  : (176) (RW_Service); MaxScale 6.2.4 received fatal signal 11. Commit ID: 6e1317be296490366b7bf11b8e9b1864acc365d6 System name: Linux Release string: Red Hat Enterprise Linux Server release 7.9 (Maipo)
2022-08-24 18:04:13   alert  : (176) (RW_Service); Statement currently being classified: none/unknown
2022-08-24 18:04:13   alert  : (176) (RW_Service); DCB: 0x7f3310128360 Session: 176 Service: RW_Service
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6

Thread 26 (Thread 0x7f332b067700 (LWP 20588)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb6f4c0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb6f480) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f332a5b7700 (LWP 20589)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f33337347e3 in wait_for (d=..., guard=..., this=0x7ffefef0ab78) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::run (this=0x7ffefef0ab40) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:217
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f3329db6700 (LWP 20590)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb702d0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb70290) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f33295b5700 (LWP 20591)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb724a0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb72460) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f3328db4700 (LWP 20592)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb72ea0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb72e60) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f33285b3700 (LWP 20593)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb738f0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb738b0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f3327db2700 (LWP 20594)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb74370) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb74330) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f33275b1700 (LWP 20595)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb74dc0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb74d80) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f3326db0700 (LWP 20596)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb75810) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb757d0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f33265af700 (LWP 20597)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333734d4e in wait_for (d=..., guard=..., this=0xb76260) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/condition_variable.hh:58
#2  maxbase::WatchdogNotifier::Dependent::Ticker::run (this=0xb76220) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/watchdognotifier.cc:96
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f3325dae700 (LWP 20599)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0xb716f0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=0xb716f0, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f33255ad700 (LWP 20600)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0xb71f60) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=0xb71f60, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f3324dac700 (LWP 20601)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0xb72840) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=0xb72840, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f3317fff700 (LWP 20602)):
#0  make_markers_sql_optimized (pMarkers=0x7f3317ffd0a8, sql=...) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxsimd/src/impl/simd_canonical.cc:90
#1  maxsimd::simd256::get_canonical_impl (pSql=<optimized out>, pMarkers=0x7f3317ffd0a8) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxsimd/src/impl/simd_canonical.cc:303
#2  0x00007f333370b19c in QCInfoCacheScope (pStmt=0x7f33107ac2b0, this=0x7f3317ff93c0) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/query_classifier.cc:431
#3  qc_get_type_mask (query=0x7f33107ac2b0) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/query_classifier.cc:689
#4  0x00007f3333714283 in mariadb::QueryClassifier::update_route_info (this=this@entry=0x7f33105c38c0, current_target=current_target@entry=mariadb::QueryClassifier::CURRENT_TARGET_UNDEFINED, pBuffer=0x7f33107ac2b0) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/queryclassifier.cc:946
#5  0x00007f33336fdc89 in MariaDBClientConnection::record_for_history (this=this@entry=0x7f33105c3810, buffer=..., cmd=cmd@entry=3 '\003') at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_client.cc:1115
#6  0x00007f33336fe526 in MariaDBClientConnection::route_statement(maxscale::Buffer&&) (this=this@entry=0x7f33105c3810, buffer=buffer@entry=<unknown type in /usr/lib64/maxscale/libmaxscale-common.so.1.0.0, CU 0xd4c70c, DIE 0xddb7df>) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_client.cc:1225
#7  0x00007f33336fef03 in MariaDBClientConnection::process_normal_packet(maxscale::Buffer&&) (this=this@entry=0x7f33105c3810, buffer=buffer@entry=<unknown type in /usr/lib64/maxscale/libmaxscale-common.so.1.0.0, CU 0xd4c70c, DIE 0xdc784e>) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_client.cc:2760
#8  0x00007f33336ff445 in MariaDBClientConnection::process_normal_read (this=this@entry=0x7f33105c3810) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_client.cc:1396
#9  0x00007f33336ff6e8 in MariaDBClientConnection::ready_for_reading (this=0x7f33105c3810, event_dcb=<optimized out>) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_client.cc:1547
#10 0x00007f333363b382 in DCB::process_events (this=0x7f33105c3a00, events=5) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1311
#11 0x00007f333363b4f1 in DCB::event_handler (dcb=0x7f33105c3a00, events=<optimized out>) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1363
#12 0x00007f3333736651 in maxbase::Worker::poll_waitevents (this=this@entry=0xb73290) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:856
#13 0x00007f33337367cf in maxbase::Worker::run (this=0xb73290, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#14 0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#15 0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#16 0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f33177fe700 (LWP 20603)):
#0  0x00007f3330a209bd in read () from /lib64/libc.so.6
#1  0x00007f33309accc4 in __GI__IO_file_underflow () from /lib64/libc.so.6
#2  0x00007f33309ae213 in __GI__IO_default_xsgetn () from /lib64/libc.so.6
#3  0x00007f33309a015f in fread () from /lib64/libc.so.6
#4  0x000000000040f643 in (anonymous namespace)::get_command_output_cb (cb=cb@entry=0x40b400 <<lambda(char const*)>::_FUN(const char *)>, format=0x413168 "gdb --pid=%d -batch -nx -iex 'set auto-load off' -iex 'set print thread-events off' -ex 'thr a a bt'", format=0x413168 "gdb --pid=%d -batch -nx -iex 'set auto-load off' -iex 'set print thread-events off' -ex 'thr a a bt'") at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/stacktrace.cc:78
#5  0x000000000040fdc7 in maxbase::dump_gdb_stacktrace (handler=0x40b400 <<lambda(char const*)>::_FUN(const char *)>) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/stacktrace.cc:230
#6  0x000000000040b3ec in sigfatal_handler (i=11) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/gateway.cc:484
#7  <signal handler called>
#8  0x00007f33155e8099 in RWSplitSession::finish_causal_read (this=this@entry=0x7f3308020ad0) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/routing/readwritesplit/rwsplit_causal_reads.cc:130
#9  0x00007f33155d98e3 in RWSplitSession::clientReply (this=0x7f3308020ad0, writebuf=0x7f330871dba0, down=..., reply=...) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/routing/readwritesplit/rwsplitsession.cc:589
#10 0x00007f33336bf5c4 in ServiceEndpoint::clientReply (this=0x7f330801cb00, buffer=<optimized out>, down=..., reply=...) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/service.cc:1701
#11 0x00007f33336b472a in ServerEndpoint::clientReply (this=0x7f330801cc00, buffer=0x7f330871dba0, down=..., reply=...) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/server.cc:1073
#12 0x00007f33336f1c1e in MariaDBBackendConnection::normal_read (this=0x7f3308021bd0) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_backend.cc:759
#13 0x00007f333363b382 in DCB::process_events (this=0x7f33080222e0, events=5) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1311
#14 0x00007f333363b4f1 in DCB::event_handler (dcb=0x7f33080222e0, events=<optimized out>) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1363
#15 0x00007f3333736651 in maxbase::Worker::poll_waitevents (this=this@entry=0xb73d40) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:856
#16 0x00007f33337367cf in maxbase::Worker::run (this=0xb73d40, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#17 0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#18 0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#19 0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f3316ffd700 (LWP 20604)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0xb74760) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=0xb74760, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f33167fc700 (LWP 20605)):
#0  0x00007f3332eea82a in sha1_block_data_order_avx2 () from /lib64/libcrypto.so.10
#1  0x5a857999a7d585d8 in ?? ()
#2  0x5a8279d45a847a99 in ?? ()
#3  0x92827999a78ea699 in ?? ()
#4  0x5a82b29957837999 in ?? ()
#5  0xbee7df9d5a82879c in ?? ()
#6  0x5bc48609caf2e006 in ?? ()
#7  0xbfe87e095a917cfd in ?? ()
#8  0x9c8eea08cae8e69a in ?? ()
#9  0xbcf2e006c9efdc0d in ?? ()
#10 0xa6d6d8e58ab2aba3 in ?? ()
#11 0xcae8e6c9c7e4edfb in ?? ()
#12 0xa3dcc9eb8ab482db in ?? ()
#13 0xaecf83e5a1d0d8dd in ?? ()
#14 0xa8e1bdedaee1c5e0 in ?? ()
#15 0x63c4c2f3aee1c7e8 in ?? ()
#16 0xa8d185d8aad4cdf8 in ?? ()
#17 0xc6dacdbb476543a7 in ?? ()
#18 0xe42a6094575d6c53 in ?? ()
#19 0x8aea7a7702dc9a0a in ?? ()
#20 0x634f1440616885cc in ?? ()
#21 0x0a3b10a625a6b1b1 in ?? ()
#22 0xa61dbc54f4a548ec in ?? ()
#23 0xc0764e8d97962d89 in ?? ()
#24 0x180c8cb1fa0f9ad7 in ?? ()
#25 0xfe484c32c0976a8b in ?? ()
#26 0xeee185c4e8a88a30 in ?? ()
#27 0x739d10b6b8066b1c in ?? ()
#28 0x72cbe549064dbffe in ?? ()
#29 0x6055d6c6c44156a5 in ?? ()
#30 0xef214323e9bc6de4 in ?? ()
#31 0x729fd34abfbee97b in ?? ()
#32 0x7ebc8bf850723101 in ?? ()
#33 0x8fc08bb7d0d74698 in ?? ()
#34 0x5551f1f6d619e6f0 in ?? ()
#35 0x2ad9dfba378554c2 in ?? ()
#36 0x92eebd26dc705f44 in ?? ()
#37 0xe3a7b759fbe68c33 in ?? ()
#38 0xd9a67a0600b33b0f in ?? ()
#39 0x9cd49b8effffb9db in ?? ()
#40 0xd547c0717e0474f1 in ?? ()
#41 0x94e3f1b157267c9c in ?? ()
#42 0x31213629437da733 in ?? ()
#43 0xdb992dd39059f930 in ?? ()
#44 0xf4302867ffce78dd in ?? ()
#45 0x4022edab5cb2e351 in ?? ()
#46 0x87e7e2c264edf6d4 in ?? ()
#47 0xed85c5a70741300f in ?? ()
#48 0x20486ef19495df3b in ?? ()
#49 0x0b14917e4a649222 in ?? ()
#50 0x9007b076f0c3b953 in ?? ()
#51 0x10b8abe48f3a1c43 in ?? ()
#52 0x0e987309ee2f793f in ?? ()
#53 0xe987fa6f7d7bbc62 in ?? ()
#54 0x278add0e717d3b7a in ?? ()
#55 0x534e681faa7208b5 in ?? ()
#56 0x471e2325aea6527c in ?? ()
#57 0x0bc58c24c9bb3761 in ?? ()
#58 0xe2093e168f97ddab in ?? ()
#59 0xfe1a8085fa5ca5bf in ?? ()
#60 0xeda037f86e27e70d in ?? ()
#61 0xf218d2c0dfc9205d in ?? ()
#62 0xe6dde1b8868ee80b in ?? ()
#63 0x7353392fdc52740e in ?? ()
#64 0x3d1dd4af5337e8de in ?? ()
#65 0x41905e6159ef4893 in ?? ()
#66 0xda3054f3f2613b8f in ?? ()
#67 0xfbfa3cde03ddbb53 in ?? ()
#68 0x83c3fff59e48607b in ?? ()
#69 0x4ef9abbba74d47fe in ?? ()
#70 0x1311af36a0a2243c in ?? ()
#71 0xd8ad0bc213aaf068 in ?? ()
#72 0xa481f52d555f8a7e in ?? ()
#73 0xe91023152e552bfa in ?? ()
#74 0xfd2b93a8bef896f8 in ?? ()
#75 0xe084d801d15ba65d in ?? ()
#76 0x5e3e6f9058952dcd in ?? ()
#77 0x61ff2974a07e0120 in ?? ()
#78 0xb629645d7910e84f in ?? ()
#79 0x7ec9510c57041ce9 in ?? ()
#80 0xf586c5001b7438a5 in ?? ()
#81 0x00007f3300850460 in ?? ()
#82 0x00007f33336e2766 in _M_insert_unique_node (__node=0xba252c91, __code=139857397506560, __bkt=139857397507160, this=0x12964935) at /opt/rh/devtoolset-7/root/usr/include/c++/7/bits/hashtable.h:1708
#83 _M_emplace<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > (this=0x12964935) at /opt/rh/devtoolset-7/root/usr/include/c++/7/bits/hashtable.h:1663
#84 insert<std::pair<std::basic_string<char>, std::basic_string<char> > > (__v=<optimized out>, this=0x12964935) at /opt/rh/devtoolset-7/root/usr/include/c++/7/bits/hashtable_policy.h:996
#85 insert<std::pair<std::basic_string<char>, std::basic_string<char> > > (__x=<unknown type in /usr/lib64/maxscale/libmaxscale-common.so.1.0.0, CU 0xc06ab7, DIE 0xc21ccd>, this=0x12964935) at /opt/rh/devtoolset-7/root/usr/include/c++/7/bits/unordered_map.h:592
#86 maxscale::Reply::set_variable (this=0x129648dd, this@entry=<error reading variable: Cannot access memory at address 0xe010b20a>, key=..., value=...) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/target.cc:479

Thread 9 (Thread 0x7f3315ffb700 (LWP 20606)):
#0  0x00007f3330a26307 in ioctl () from /lib64/libc.so.6
#1  0x00007f333363bef7 in DCB::socket_bytes_readable (this=0x7f33044f1820) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:375
#2  0x00007f333363d548 in DCB::read (this=this@entry=0x7f33044f1820, head=head@entry=0x7f3315ff5668, maxbytes=maxbytes@entry=0) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:336
#3  0x00007f333363d6dc in DCB::read (this=0x7f33044f1820, min_bytes=min_bytes@entry=4, max_bytes=max_bytes@entry=0) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:262
#4  0x00007f33336f1a8e in MariaDBBackendConnection::normal_read (this=0x7f33044f1090) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/mariadb_backend.cc:652
#5  0x00007f333363b382 in DCB::process_events (this=0x7f33044f1820, events=5) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1311
#6  0x00007f333363b4f1 in DCB::event_handler (dcb=0x7f33044f1820, events=<optimized out>) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/dcb.cc:1363
#7  0x00007f3333736651 in maxbase::Worker::poll_waitevents (this=this@entry=0xb75c00) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:856
#8  0x00007f33337367cf in maxbase::Worker::run (this=0xb75c00, pSem=0x7ffefef0a850) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#9  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#10 0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f33155a8700 (LWP 20607)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f3333721c04 in __gthread_cond_timedwait (__abs_timeout=0x7f33155a56b0, __mutex=<optimized out>, __cond=0xbaa568) at /opt/rh/devtoolset-7/root/usr/include/c++/7/x86_64-redhat-linux/bits/gthr-default.h:871
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=<synthetic pointer>, __lock=..., this=0xbaa568) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:166
#3  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=<synthetic pointer>, __lock=..., this=0xbaa568) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:119
#4  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, MariaDBUserManager::updater_thread_function()::<lambda()> > (__p=..., __atime=<synthetic pointer>, __lock=..., this=0xbaa568) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:129
#5  MariaDBUserManager::updater_thread_function (this=0xbaa510) at /home/timofey_turenko_mariadb_com/MaxScale/server/modules/protocol/MariaDB/user_data.cc:249
#6  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#7  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f3314da7700 (LWP 20608)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f33337faf7a in MHD_epoll (daemon=daemon@entry=0xbaaa80, may_block=may_block@entry=1) at daemon.c:4467
#2  0x00007f33337fc05a in MHD_polling_thread (cls=0xbaaa80) at daemon.c:4746
#3  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f32fffff700 (LWP 20609)):
#0  0x00007f333162ede2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f33336dedd4 in __gthread_cond_timedwait (__abs_timeout=0x7f32ffffc690, __mutex=<optimized out>, __cond=0x7f3333ac8968 <_ZN12_GLOBAL__N_19this_unitE+104>) at /opt/rh/devtoolset-7/root/usr/include/c++/7/x86_64-redhat-linux/bits/gthr-default.h:871
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=<synthetic pointer>, __lock=<synthetic pointer>, this=0x7f3333ac8968 <_ZN12_GLOBAL__N_19this_unitE+104>) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:166
#3  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=<synthetic pointer>, __lock=<synthetic pointer>, this=0x7f3333ac8968 <_ZN12_GLOBAL__N_19this_unitE+104>) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:119
#4  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, HttpSql::ConnectionManager::cleanup_thread_func()::<lambda()> > (__p=..., __atime=<synthetic pointer>, __lock=<synthetic pointer>, this=0x7f3333ac8968 <_ZN12_GLOBAL__N_19this_unitE+104>) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:129
#5  HttpSql::ConnectionManager::cleanup_thread_func (this=0x7f3333ac8900 <_ZN12_GLOBAL__N_19this_unitE>) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/sql_conn_manager.cc:163
#6  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#7  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f32ff7fe700 (LWP 20610)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0xba3d10) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=0xba3d10, pSem=0x7ffefef077a0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#4  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f32feffd700 (LWP 20611)):
#0  0x00007f333162ea35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f333274eaec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#2  0x00007f33335e399d in wait<maxbase::ThreadPool::Thread::main()::<lambda()> > (__p=..., __lock=..., this=0x7f32f4000a00) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:99
#3  maxbase::ThreadPool::Thread::main (this=0x7f32f4000980) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/threadpool.cc:84
#4  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#5  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f32fe7fc700 (LWP 20612)):
#0  0x00007f333162ea35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f333274eaec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#2  0x00007f33335e399d in wait<maxbase::ThreadPool::Thread::main()::<lambda()> > (__p=..., __lock=..., this=0x7f32f4000ac0) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:99
#3  maxbase::ThreadPool::Thread::main (this=0x7f32f4000a40) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/threadpool.cc:84
#4  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#5  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f32fdffb700 (LWP 20613)):
#0  0x00007f333162ea35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f333274eaec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#2  0x00007f33335e399d in wait<maxbase::ThreadPool::Thread::main()::<lambda()> > (__p=..., __lock=..., this=0x7f32f4001f90) at /opt/rh/devtoolset-7/root/usr/include/c++/7/condition_variable:99
#3  maxbase::ThreadPool::Thread::main (this=0x7f32f4001f10) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/threadpool.cc:84
#4  0x00007f33337e928f in execute_native_thread_routine () from /usr/lib64/maxscale/libmaxscale-common.so.1.0.0
#5  0x00007f333162aea5 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f3330a2f96d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f3333cc6f40 (LWP 20587)):
#0  0x00007f3330a2ff43 in epoll_wait () from /lib64/libc.so.6
#1  0x00007f3333736539 in maxbase::Worker::poll_waitevents (this=this@entry=0x7ffefef0ad40) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:800
#2  0x00007f33337367cf in maxbase::Worker::run (this=this@entry=0x7ffefef0ad40, pSem=pSem@entry=0x0) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/src/worker.cc:562
#3  0x000000000040977d in run (this=0x7ffefef0ad40) at /home/timofey_turenko_mariadb_com/MaxScale/maxutils/maxbase/include/maxbase/worker.hh:447
#4  main (argc=<optimized out>, argv=<optimized out>) at /home/timofey_turenko_mariadb_com/MaxScale/server/core/gateway.cc:2239
[Inferior 1 (process 20587) detached]
alert  : Writing core dump.