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  1. MariaDB Server
  2. MDEV-27156

MariaDB 10.5.13 Galera Node core dumped




      Hello ,

      one of our Galera Nodes dies hours ago with following state:

      2021-12-02 21:34:38 41 [ERROR] [FATAL] InnoDB: Page old data size 15457 new data size 15959, page old max ins size 528 new max ins size 26
      211202 21:34:38 [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: 10.5.13-MariaDB-log
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 3310938 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
      Thread pointer: 0x129b99cb318
      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 = 0x7fffdce99f30 thread_stack 0xc0000
      2021-12-02 21:34:41 0 [Warning] WSREP: last inactive check more than PT1.5S ago (PT3.54933S), skipping check
      0x132bb7c <my_print_stacktrace+0x3c> at /usr/local/libexec/mariadbd
      0xc8b250 <handle_fatal_signal+0x290> at /usr/local/libexec/mariadbd
      2021-12-02 21:34:42 0 [Note] WSREP: (7422f571-baaf, 'tcp://') turning message relay requesting on, nonlive peers: tcp:// tcp:// tcp:// tcp://
      2021-12-02 21:34:42 0 [Note] WSREP: (7422f571-baaf, 'tcp://') connection established to 32fb230c-8d6c tcp://
      2021-12-02 21:34:42 0 [Note] WSREP: (7422f571-baaf, 'tcp://') connection established to 98597714-a0b1 tcp://
      2021-12-02 21:34:42 0 [Note] WSREP: (7422f571-baaf, 'tcp://') connection established to b764b1d2-b98b tcp://
      2021-12-02 21:34:42 0 [Note] WSREP: (7422f571-baaf, 'tcp://') connection established to b82f6161-9027 tcp://
      0x801924b70 <_pthread_sigmask+0x530> at /lib/libthr.so.3
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x1c9a48adc4): INSERT INTO QUERY SCRABLED
      Connection ID (thread ID): 41
      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=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off
      The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
      information that should help you find out what is causing the crash.
      Core pattern: %N.core

      If we try to join the back to the cluster the same behavior repeat .

      First we have the same situation with node which was GTID replica slave of this one.

      What can we to supply more useful information? The core dump file is 150G




            marko Marko Mäkelä
            skarida Rumen Palov
            1 Vote for this issue
            4 Start watching this issue



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