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    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 10.1.21
    • Fix Version/s: None
    • Component/s: Query Cache
    • Labels:

      Description

      Hello,
      tonight one of our MariaDB Server crashed out of nowhere. Searched the Reason for a few Hours now - but was not able to narrow the cause down! :-/
      Maybe it's a Bug? Maybe you can tell me a bit more from those Errors?

      OS: CentOS Linux release 7.3.1611 (Core)

      Thank you

      170301  0:40:01 [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 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: 10.1.21-MariaDB
      key_buffer_size=3221225472
      read_buffer_size=6291456
      max_used_connections=502
      max_threads=602
      thread_count=79
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 85762103 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7f6e58b00a38
      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 = 0x7f67b2a2ccf0 thread_stack 0x30000
      /usr/libexec/mysqld(my_print_stacktrace+0x2e)[0x7f6e565ce80e]
      /usr/libexec/mysqld(handle_fatal_signal+0x305)[0x7f6e560f5da5]
      /lib64/libpthread.so.0(+0xf370)[0x7f6e55712370]
      /usr/libexec/mysqld(_ZN11Query_cache12move_by_typeEPPhPP17Query_cache_blockPmS3_+0x730)[0x7f6e55f3b920]
      /usr/libexec/mysqld(_ZN11Query_cache10pack_cacheEv+0x71)[0x7f6e55f3bb21]
      /usr/libexec/mysqld(_ZN11Query_cache4packEP3THDmj+0x4e)[0x7f6e55f3be0e]
      /usr/libexec/mysqld(_Z20reload_acl_and_cacheP3THDyP10TABLE_LISTPi+0x690)[0x7f6e5605e970]
      /usr/libexec/mysqld(_Z21mysql_execute_commandP3THD+0x1400)[0x7f6e55f716a0]
      /usr/libexec/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x332)[0x7f6e55f79682]
      /usr/libexec/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x243c)[0x7f6e55f7c99c]
      /usr/libexec/mysqld(_Z10do_commandP3THD+0x14a)[0x7f6e55f7d1fa]
      /usr/libexec/mysqld(_Z24do_handle_one_connectionP3THD+0x18a)[0x7f6e5604445a]
      /usr/libexec/mysqld(handle_one_connection+0x40)[0x7f6e56044600]
      /lib64/libpthread.so.0(+0x7dc5)[0x7f6e5570adc5]
      /lib64/libc.so.6(clone+0x6d)[0x7f6e53f8373d]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x7f68c40008e0): FLUSH QUERY CACHE
      Connection ID (thread ID): 568895
      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=on,exists_to_in=on,orderby_uses_equalities=off
      

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              Assignee:
              elenst Elena Stepanova
              Reporter:
              Futureweb Andreas Schnederle-Wagner
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                Dates

                Created:
                Updated: