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  1. MariaDB Server
  2. MDEV-10892

rpl.rpl_semi_sync_uninstall_plugin fails with Assertion `0' failure in buildbot

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      Description

      http://buildbot.askmonty.org/buildbot/builders/kvm-fulltest2/builds/5987/steps/test_7/logs/stdio

      rpl.rpl_semi_sync_uninstall_plugin 'stmt' w3 [ fail ]
              Test ended at 2016-09-25 18:18:26
       
      CURRENT_TEST: rpl.rpl_semi_sync_uninstall_plugin
      mysqltest: In included file "./include/wait_condition.inc": 
      included from /mnt/buildbot/build/mariadb-10.2.2/mysql-test/suite/rpl/t/rpl_semi_sync_uninstall_plugin.test at line 115:
      At line 43: query 'let $success= `$wait_condition`' failed with wrong errno 2013: 'Lost connection to MySQL server during query', instead of 0...
       
      The result from queries just before the failure was:
      < snip >
      show status like "Rpl_semi_sync_slave_status";
      Variable_name	Value
      Rpl_semi_sync_slave_status	ON
      connection master;
      show status like "Rpl_semi_sync_master_status";
      Variable_name	Value
      Rpl_semi_sync_master_status	ON
      show status like "Rpl_semi_sync_master_clients";
      Variable_name	Value
      Rpl_semi_sync_master_clients	1
      select plugin_name,plugin_status from information_schema.plugins where plugin_name like 'rpl_%';
      plugin_name	plugin_status
      rpl_semi_sync_master	DELETED
      connection slave;
      include/stop_slave.inc
      select plugin_name,plugin_status from information_schema.plugins where plugin_name like 'rpl_%';
      plugin_name	plugin_status
      connection master;
      create table t2 (a int);
      drop table t2;
      

      mysqld: /home/buildbot/buildbot/build/mariadb-10.2.2/sql/sql_show.cc:178: my_bool show_plugins(THD*, plugin_ref, void*): Assertion `0' failed.
      2016-09-25 18:18:17 2970310464 [Note] unregister_replicator OK
      160925 18:18:17 [ERROR] mysqld got signal 6 ;
      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 https://mariadb.com/kb/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: 10.2.2-MariaDB-debug-log
      key_buffer_size=1048576
      read_buffer_size=131072
      max_used_connections=7
      max_threads=153
      thread_count=9
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 61859 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x0xb1429de8
      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 = 0xb126ae80 thread_stack 0x48c00
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(my_print_stacktrace+0x32)[0x8cde4b1]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(handle_fatal_signal+0x3c8)[0x85889d0]
      [0xeec400]
      [0xeec416]
      /lib/i386-linux-gnu/libc.so.6(gsignal+0x4f)[0xd4f1ef]
      /lib/i386-linux-gnu/libc.so.6(abort+0x175)[0xd52835]
      /lib/i386-linux-gnu/libc.so.6(+0x27095)[0xd48095]
      /lib/i386-linux-gnu/libc.so.6(+0x27147)[0xd48147]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld[0x83b18ac]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z24plugin_foreach_with_maskP3THDPFcS0_PP13st_plugin_intPvEijS4_+0x2af)[0x83493e2]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z12fill_pluginsP3THDP10TABLE_LISTP4Item+0x6f)[0x83b1e3f]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z24get_schema_tables_resultP4JOIN23enum_schema_table_state+0x312)[0x83ccdad]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_ZN4JOIN10exec_innerEv+0x853)[0x8372777]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_ZN4JOIN4execEv+0xcd)[0x8371e81]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTjR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x35a)[0x837308d]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x1e4)[0x8369418]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld[0x833844a]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z21mysql_execute_commandP3THD+0x182c)[0x832d2e4]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x288)[0x833bb7c]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0xee0)[0x8328e5e]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z10do_commandP3THD+0x77f)[0x83278a7]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x1bf)[0x8460751]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld(handle_one_connection+0x38)[0x84604df]
      /mnt/buildbot/build/mariadb-10.2.2/sql/mysqld[0x877fb6d]
      /lib/i386-linux-gnu/libpthread.so.0(+0x6d4c)[0x116d4c]
      /lib/i386-linux-gnu/libc.so.6(clone+0x5e)[0xe0bace]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0xb1431958): select count(*) = 0 from information_schema.plugins where plugin_name like 'rpl_%'
      Connection ID (thread ID): 8
      Status: NOT_KILLED
      

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              • Assignee:
                svoj Sergey Vojtovich
                Reporter:
                elenst Elena Stepanova
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                • Created:
                  Updated:
                  Resolved: