- terminal 1 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26/mysql-test]$ ./mtr gr_abort_query_on_plugin_error --start Logging: ./mtr gr_abort_query_on_plugin_error --start MySQL Version 8.0.26 Checking supported features Using 'all' suites Collecting tests Checking leftover processes - found old pid 23848 in 'mysqld.2.pid', killing it... process did not exist! Removing old var directory - WARNING: Using the 'mysql-test/var' symlink Creating var directory '/export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var' Installing system database Using parallel: 1 ============================================================================== TEST NAME RESULT TIME (ms) COMMENT ------------------------------------------------------------------------------ worker[1] Started [mysqld.1 - pid: 24299, winpid: 24299] [mysqld.2 - pid: 24301, winpid: 24301] worker[1] Using config /export/home/tmp/ushastry/mysql-8.0.26/mysql-test/suite/group_replication/my.cnf worker[1] Port and socket path for server(s): worker[1] mysqld.1 13000 /export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/tmp/mysqld.1.sock worker[1] mysqld.2 13002 /export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/tmp/mysqld.2.sock worker[1] Waiting for server(s) to exit... - terminal 2 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn1>' set GLOBAL group_replication_bootstrap_group=ON; set persist group_replication_group_name='aabbccdd-aabb-aabb-aabb-aabbccddeeff',persist group_replication_group_seeds='127.0.0.1:33061,127.0.0.1:33062',persist group_replication_local_address='127.0.0.1:33061';set global group_replication_consistency='eventual';CHANGE MASTER TO MASTER_USER="root" FOR CHANNEL "group_replication_recovery";start group_replication; set GLOBAL group_replication_bootstrap_group=OFF; [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn1>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.26 MySQL Community Server - GPL Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13000-conn1>set GLOBAL group_replication_bootstrap_group=ON; Query OK, 0 rows affected (0.00 sec) 13000-conn1>set persist group_replication_group_name='aabbccdd-aabb-aabb-aabb-aabbccddeeff',persist group_replication_group_seeds='127.0.0.1:33061,127.0.0.1:33062',persist group_replication_local_address='127.0.0.1:33061';set global group_replication_consistency='eventual';CHANGE MASTER TO MASTER_USER="root" FOR CHANNEL "group_replication_recovery";start group_replication; Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected, 3 warnings (0.00 sec) Query OK, 0 rows affected (2.35 sec) 13000-conn1>set GLOBAL group_replication_bootstrap_group=OFF; Query OK, 0 rows affected (0.00 sec) 13000-conn1> - terminal 3 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13002 -h127.0.0.1 test --prompt='13002-conn2>' set persist group_replication_group_name='aabbccdd-aabb-aabb-aabb-aabbccddeeff',persist group_replication_group_seeds='127.0.0.1:33061,127.0.0.1:33062',persist group_replication_local_address='127.0.0.1:33062';set global group_replication_consistency='eventual';CHANGE MASTER TO MASTER_USER="root" FOR CHANNEL "group_replication_recovery";start group_replication; select * from performance_schema.replication_group_members; [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13002 -h127.0.0.1 test --prompt='13002-conn2>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.26 MySQL Community Server - GPL Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13002-conn2>set persist group_replication_group_name='aabbccdd-aabb-aabb-aabb-aabbccddeeff',persist group_replication_group_seeds='127.0.0.1:33061,127.0.0.1:33062',persist group_replication_local_address='127.0.0.1:33062';set global group_replication_consistency='eventual';CHANGE MASTER TO MASTER_USER="root" FOR CHANNEL "group_replication_recovery";start group_replication; Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected, 3 warnings (0.00 sec) select * from performance_schema.replication_group_members; Query OK, 0 rows affected (2.28 sec) 13002-conn2>select * from performance_schema.replication_group_members; +---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION | +---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+ | group_replication_applier | a40bb79f-1b9b-11ec-8946-000017016152 | 127.0.0.1 | 13000 | ONLINE | PRIMARY | 8.0.26 | | group_replication_applier | a4150d55-1b9b-11ec-8a60-000017016152 | 127.0.0.1 | 13002 | RECOVERING | PRIMARY | 8.0.26 | +---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+ 2 rows in set (0.00 sec) 13002-conn2> - terminal 4 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn2> create table t1 (c1 int primary key, c2 int) engine=innodb; insert into t1 values (1,1); show master status; set session gtid_next='aabbccdd-aabb-aabb-aabb-aabbccddeeff:5'; [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn2>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 9 Server version: 8.0.26 MySQL Community Server - GPL Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13000-conn2>create table t1 (c1 int primary key, c2 int) engine=innodb; Query OK, 0 rows affected (0.01 sec) 13000-conn2>insert into t1 values (1,1); Query OK, 1 row affected (0.00 sec) 13000-conn2>show master status; +--------------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +--------------------------+----------+--------------+------------------+------------------------------------------+ | server-binary-log.000001 | 1365 | | | aabbccdd-aabb-aabb-aabb-aabbccddeeff:1-4 | +--------------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec) 13000-conn2>set session gtid_next='aabbccdd-aabb-aabb-aabb-aabbccddeeff:5'; Query OK, 0 rows affected (0.00 sec) 13000-conn2> - terminal 5 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn3> show master status; insert into t1 values (2,2); show master status; set session group_replication_consistency='BEFORE'; select * from t1; [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn3>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Server version: 8.0.26 MySQL Community Server - GPL Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13000-conn3>show master status; +--------------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +--------------------------+----------+--------------+------------------+------------------------------------------+ | server-binary-log.000001 | 1365 | | | aabbccdd-aabb-aabb-aabb-aabbccddeeff:1-4 | +--------------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec) 13000-conn3>insert into t1 values (2,2); Query OK, 1 row affected (0.00 sec) 13000-conn3>show master status; +--------------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +--------------------------+----------+--------------+------------------+------------------------------------------+ | server-binary-log.000001 | 1650 | | | aabbccdd-aabb-aabb-aabb-aabbccddeeff:1-5 | +--------------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec) 13000-conn3>set session group_replication_consistency='BEFORE'; Query OK, 0 rows affected (0.00 sec) 13000-conn3>select * from t1; <-- first time no hang observed, go to terminal 6 and check show processlist, back to this terminal and rerun select +----+------+ | c1 | c2 | +----+------+ | 1 | 1 | | 2 | 2 | +----+------+ 2 rows in set (0.00 sec) 13000-conn3>select * from t1; <-- second time it hangs - terminal 6 [umshastr@support-cluster03:/export/home/tmp/ushastry/mysql-8.0.26]$ bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn4> show processlist; bin/mysql -uroot -P13000 -h127.0.0.1 test --prompt='13000-conn4>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 11 Server version: 8.0.26 MySQL Community Server - GPL Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 603 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 44 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 17 | | NULL | | 10 | root | localhost:56636 | test | Sleep | 14 | | NULL | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 47 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 47 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.01 sec) 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 635 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 76 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 49 | | NULL | | 10 | root | localhost:56636 | test | Sleep | 46 | | NULL | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 79 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 79 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.00 sec) 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 645 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 86 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 59 | | NULL | | 10 | root | localhost:56636 | test | Query | 5 | Executing hook on transaction begin. | select * from t1 | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 89 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 89 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.00 sec) 13000-conn4> 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 766 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 207 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 180 | | NULL | | 10 | root | localhost:56636 | test | Query | 126 | Executing hook on transaction begin. | select * from t1 | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 210 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 210 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.00 sec) 13000-conn4> 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 970 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 411 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 384 | | NULL | | 10 | root | localhost:56636 | test | Query | 330 | Executing hook on transaction begin. | select * from t1 | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 414 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 414 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.00 sec) 13000-conn4> 13000-conn4>show processlist; +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ | 5 | event_scheduler | localhost | NULL | Daemon | 1184 | Waiting on empty queue | NULL | | 8 | root | localhost:56630 | test | Sleep | 625 | | NULL | | 9 | root | localhost:56634 | test | Sleep | 598 | | NULL | | 10 | root | localhost:56636 | test | Query | 544 | Executing hook on transaction begin. | select * from t1 | | 11 | root | localhost:56680 | test | Query | 0 | init | show processlist | | 13 | system user | | NULL | Connect | 628 | waiting for handler commit | Group replication applier module | | 16 | system user | | NULL | Query | 628 | Replica has read all relay log; waiting for more updates | NULL | +----+-----------------+-----------------+------+---------+------+----------------------------------------------------------+----------------------------------+ 7 rows in set (0.01 sec) 13000-conn4> - bt [umshastr@support-cluster03:~/work/binaries/utils]$ ps aux|grep mysqld umshastr 24299 0.0 0.0 14748 1536 pts/0 S+ 13:53 0:00 /export/home/tmp/ushastry/mysql-8.0.26/bin//mysqltest_safe_process -- /export/home/tmp/ushastry/mysql-8.0.26/bin/mysqld --defaults-group-suffix=.1 --defaults-file=/export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/my.cnf --log-output=file --loose-debug-sync-timeout=600 --plugin-dir=/export/home/tmp/ushastry/mysql-8.0.26/lib/plugin --plugin-load=group_replication.so --core-file umshastr 24300 0.2 0.3 2638420 396156 pts/0 Sl 13:53 0:02 /export/home/tmp/ushastry/mysql-8.0.26/bin/mysqld --defaults-group-suffix=.1 --defaults-file=/export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/my.cnf --log-output=file --loose-debug-sync-timeout=600 --plugin-dir=/export/home/tmp/ushastry/mysql-8.0.26/lib/plugin --plugin-load=group_replication.so --core-file umshastr 24301 0.0 0.0 14748 1616 pts/0 S+ 13:53 0:00 /export/home/tmp/ushastry/mysql-8.0.26/bin//mysqltest_safe_process -- /export/home/tmp/ushastry/mysql-8.0.26/bin/mysqld --defaults-group-suffix=.2 --defaults-file=/export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/my.cnf --log-output=file --loose-debug-sync-timeout=600 --plugin-dir=/export/home/tmp/ushastry/mysql-8.0.26/lib/plugin --plugin-load=group_replication.so --core-file umshastr 24302 0.1 0.3 2572308 392432 pts/0 Sl 13:53 0:02 /export/home/tmp/ushastry/mysql-8.0.26/bin/mysqld --defaults-group-suffix=.2 --defaults-file=/export/home/tmp/ushastry/mysql-8.0.26/mysql-test/var/my.cnf --log-output=file --loose-debug-sync-timeout=600 --plugin-dir=/export/home/tmp/ushastry/mysql-8.0.26/lib/plugin --plugin-load=group_replication.so --core-file umshastr 25528 0.0 0.0 114292 2256 pts/11 S+ 14:11 0:00 grep --color=auto mysqld [umshastr@support-cluster03:~/work/binaries/utils]$ [umshastr@support-cluster03:~/work/binaries/utils]$ ./pt-pmp --pid=24300 Wed Sep 22 14:12:17 CEST 2021 Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /export/home/tmp/ushastry/mysql-8.0.26/bin/mysqld] Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /export/home/tmp/ushastry/mysql-8.0.26/lib/plugin/component_reference_cache.so] Dwarf Error: wrong version in compilation unit header (is 0, should be 2, 3, or 4) [in module /export/home/tmp/ushastry/mysql-8.0.26/lib/plugin/group_replication.so] 4 __io_getevents_0_4(libaio.so.1),LinuxAIOHandler::collect,LinuxAIOHandler::poll,os_aio_handler,fil_aio_wait,io_handler_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 3 pthread_cond_wait,os_event::wait_low,srv_worker_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 3 ppoll(libc.so.6),vio_io_wait,vio_socket_io_wait,vio_ssl_read,net_read_raw_loop,net_read_packet,my_net_read,Protocol_classic::read_packet,Protocol_classic::get_command,do_command,handle_connection,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 2 pthread_cond_timedwait,xpl::Cond::timed_wait,ngs::Scheduler_dynamic::wait_if_idle_then_delete_worker,ngs::Scheduler_dynamic::worker,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 sigwaitinfo(libc.so.6),signal_hand,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,xpl::Cond::wait,xpl::Broker_task::wait_for_data_and_swap_queues,xpl::Broker_task::loop,ngs::Server::run_task,std::_Function_handler::_M_invoke,ngs::Scheduler_dynamic::worker,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,Per_thread_connection_handler::block_until_new_connection,handle_connection,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,os_event::wait_low,srv_purge_coordinator_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,os_event::wait_low,buf_resize_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,os_event::wait_low,buf_dump_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,My_xp_cond_server::wait(group_replication.so),Gcs_xcom_engine::process(group_replication.so),process_notification_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,My_xp_cond_server::wait(group_replication.so),Gcs_async_buffer::consume_events(group_replication.so),consumer_function(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,Mysql_thread::dispatcher(group_replication.so),launch_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,MYSQL_BIN_LOG::wait_for_update,Rpl_applier_reader::wait_for_new_event,Rpl_applier_reader::read_next_event[clone.localalias.45],handle_slave_sql,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,Message_service_handler::dispatcher(group_replication.so),launch_message_service_handler_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,Event_queue::cond_wait,Event_queue::get_top_for_execution_if_time,Event_scheduler::run,event_scheduler_thread,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,compress_gtid_table,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_wait,Applier_module::applier_thread_handle(group_replication.so),launch_handler_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,Relay_log_info::wait_for_gtid_set,Relay_log_info::wait_for_gtid_set,channel_wait_until_apply_queue_applied,Transaction_consistency_manager::transaction_begin_sync_before_execution(group_replication.so),Transaction_consistency_manager::before_transaction_begin(group_replication.so),group_replication_trans_begin(group_replication.so),Trans_delegate::trans_begin,launch_hook_trans_begin,mysql_execute_command,dispatch_sql_command,dispatch_command,do_command,handle_connection,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,srv_monitor_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,srv_error_monitor_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,log_writer,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,log_write_notifier,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,log_flush_notifier,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,log_flusher,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,log_checkpointer,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,lock_wait_timeout_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,ib_wqueue_timedwait,fts_optimize_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,dict_stats_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,Clone_persist_gtid::periodic_write,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,os_event::timed_wait,os_event::wait_time_low,buf_flush_page_coordinator_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,My_xp_cond_server::timed_wait(group_replication.so),Gcs_suspicions_manager::process_suspicions(group_replication.so),suspicions_processing_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 pthread_cond_timedwait,Certifier_broadcast_thread::dispatcher(group_replication.so),launch_broadcast_thread(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 poll(libc.so.6),poll_wait(group_replication.so),task_loop(group_replication.so),xcom_taskmain2(group_replication.so),xcom_taskmain_startup(group_replication.so),pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6) 1 poll(libc.so.6),Mysqld_socket_listener::listen_for_connection_event,mysqld_main,__libc_start_main(libc.so.6),_start 1 nanosleep(libpthread.so.0),srv_master_thread,std::thread::_State_impl::_M_run,execute_native_thread_routine,start_thread(libpthread.so.0),clone(libc.so.6) 1 epoll_wait(libc.so.6),epoll_dispatch,event_base_loop,ngs::Server::run_task,std::_Function_handler::_M_invoke,ngs::Scheduler_dynamic::worker,pfs_spawn_thread,start_thread(libpthread.so.0),clone(libc.so.6)