Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Cannot Reproduce
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5.5.41
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Red Hat Enterprise Linux x86_64 GNU/Linux
Description
After a MariaDB upgrade from 5.5.37 to 5.5.41, it crashes on dynamical load of the server_audit.so.
The sequence of the events:
1. Stop Mariadb 5.5.37 and point the symlink to 5.5.41
2. Commented the Audit Plugin Configuration in config file.
3. Start the database and execute the mysql_upgrade script
4. Check for audit vars:
(root@localhost) [(none)]> show variables like "%audit%";
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Empty set (0.00 sec)
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5. Load the server_audit.so
(root@localhost) [(none)]> INSTALL PLUGIN server_audit SONAME "server_audit.so" ;
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ERROR 2013 (HY000): Lost connection to MySQL server during query
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(root@localhost) [(none)]> select user from mysql.user;
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ERROR 2006 (HY000): MySQL server has gone away
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No connection. Trying to reconnect...
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Connection id: 2
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Current database: *** NONE ***
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Error log:
150204 9:26:46 [Note] locapathto/bin/mysqld: ready for connections.
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Version: '5.5.41-MariaDB' socket: 'locapathtolog/locapathto.sock' port: 53970 MariaDB Server
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150204 9:32:49 [ERROR] mysqld got signal 11 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see http://kb.askmonty.org/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 5.5.41-MariaDB
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key_buffer_size=33554432
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read_buffer_size=8388608
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max_used_connections=3
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max_threads=402
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thread_count=2
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 11566067 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x0x2aab16acd000
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x41ab10a0 thread_stack 0x48000
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mysys/stacktrace.c:247(my_print_stacktrace)[0xaf303e]
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sql/signal_handler.cc:153(handle_fatal_signal)[0x6db68c]
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/lib64/libpthread.so.0[0x3b31a0eb70]
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/lib64/libc.so.6(strlen+0x10)[0x3b31279b60]
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mysys/my_alloc.c:415(strdup_root)[0xae860e]
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sql/sql_plugin.cc:3924(test_plugin_options)[0x58d8cd]
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sql/sql_plugin.cc:2047(finalize_install)[0x58dbde]
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sql/sql_plugin.cc:2148(mysql_install_plugin(THD*, st_mysql_lex_string const*, st_mysql_lex_string const*))[0x58fdd8]
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sql/sql_parse.cc:4420(mysql_execute_command(THD*))[0x58211e]
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sql/sql_parse.cc:5909(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x587081]
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sql/sql_parse.cc:1081(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x5887ac]
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sql/sql_parse.cc:793(do_command(THD*))[0x588d52]
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sql/sql_connect.cc:1266(do_handle_one_connection(THD*))[0x643aa3]
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sql/sql_connect.cc:1183(handle_one_connection)[0x643bec]
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/lib64/libpthread.so.0[0x3b31a0673d]
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/lib64/libc.so.6(clone+0x6d)[0x3b312d44bd]
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Query (0x2aab16020018): INSTALL PLUGIN server_audit SONAME "server_audit.so"
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Connection ID (thread ID): 16
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Status: NOT_KILLED
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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=off
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
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information that should help you find out what is causing the crash.
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150204 09:32:49 mysqld_safe Number of processes running now: 0
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150204 09:32:49 mysqld_safe Number of processes running now: 0
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plugin version checK
strings server_audit.so |grep 1.1.
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Is it reproducible?
Is it with bintar or RPM?
Which Red Hat version is it?
Does it only happen on upgrade or on clean datadir too?
Does switching symlinks mean that you also use the new plugin directory, or only new binaries but old plugindir?
Thanks.