I'm using the following components :
- 5.5.35-MariaDB-wsrep-log
- wsrep_25.9.r3944
- galera-25.3.2
And after an uptime of 10 days, I get the following crash on the salve node :
140227 11:25:48 [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 http://kb.askmonty.org/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: 5.5.35-MariaDB-wsrep-log
key_buffer_size=2097152000
read_buffer_size=131072
max_used_connections=15
max_threads=2002
thread_count=2
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 6440932 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0x7f8c200009a0
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 = 0x7f8c48105ad8 thread_stack 0x48000
/usr/sbin/mysqld(my_print_stacktrace+0x39)[0x7f8c4b8bd819]
/usr/sbin/mysqld(handle_fatal_signal+0x426)[0x7f8c4b504646]
/lib64/libpthread.so.0(+0x10b10)[0x7f8c4a38bb10]
/usr/lib64/galera/libgalera_smm.so(+0x1adc57)[0x7f8c482b4c57]
/usr/lib64/galera/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x4b)[0x7f8c482bc6cb]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x1b7)[0x7f8c482b9787]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3cf)[0x7f8c482ba57f]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x50)[0x7f8c482ba740]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7f8c482baacc]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x9d)[0x7f8c482e164d]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM11process_trxEPvPNS_9TrxHandleE+0x3f)[0x7f8c482e21df]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera15GcsActionSource8dispatchEPvRK10gcs_actionRb+0x414)[0x7f8c482c35a4]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera15GcsActionSource7processEPvRb+0x6b)[0x7f8c482c412b]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM10async_recvEPv+0x7d)[0x7f8c482e41cd]
/usr/lib64/galera/libgalera_smm.so(galera_recv+0x36)[0x7f8c482f8df6]
/usr/sbin/mysqld(+0x4a3fa4)[0x7f8c4b4b4fa4]
/usr/sbin/mysqld(start_wsrep_THD+0x3a0)[0x7f8c4b32f0e0]
/lib64/libpthread.so.0(+0x8f3a)[0x7f8c4a383f3a]
/lib64/libc.so.6(clone+0x6d)[0x7f8c49aa60ed]
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x0): is an invalid pointer
Connection ID (thread ID): 2
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=off
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
On the master host, package are in the very same version and get the following error :
140227 11:25:35 [Note] WSREP: Created page /srv/sql/ data/gcache. page.000027 of size 216232044 bytes
140227 11:25:48 [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 http:// kb.askmonty. org/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: 5.5.35- MariaDB- wsrep-log size=2097152000 size=131072 connections= 56 size)*max_ threads = 6440932 K bytes of memory
key_buffer_
read_buffer_
max_used_
max_threads=2002
thread_count=24
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0x7f694eda2ff0 data/gcache. page.000027 mysqld( my_print_ stacktrace+ 0x39)[0x7f694b1 63819] mysqld( handle_ fatal_signal+ 0x426)[ 0x7f694adaa646] libpthread. so.0(+0x10b10) [0x7f6949c31b10 ] galera/ libgalera_ smm.so( +0x1adc57) [0x7f6933b4cc57 ] galera/ libgalera_ smm.so( _ZNSt3tr110_ HashtableIPN6ga lera10KeyEntryN GES3_SaIS3_ ESt9_IdentityIS 3_ENS1_ 18KeyEntryPtrEq ualNGENS1_ 17KeyEntryPtrHa shNGENS_ 8__detail18_ Mod_range_ hashingENS9_ 20_Default_ ranged_ hashENS9_ 20_Prime_ rehash_ policyELb0ELb1E Lb1EE4findERKS3 _+0x4b) [0x7f6933b546cb ] galera/ libgalera_ smm.so( _ZN6galera13Cer tification10do_ test_v3EPNS_ 9TrxHandleEb+ 0x1b7)[ 0x7f6933b51787] galera/ libgalera_ smm.so( _ZN6galera13Cer tification7do_ testEPNS_ 9TrxHandleEb+ 0x3cf)[ 0x7f6933b5257f] galera/ libgalera_ smm.so( _ZN6galera13Cer tification4test EPNS_9TrxHandle Eb+0x50) [0x7f6933b52740 ] galera/ libgalera_ smm.so( _ZN6galera13Cer tification10app end_trxEPNS_ 9TrxHandleE+ 0xcc)[0x7f6933b 52acc] galera/ libgalera_ smm.so( _ZN6galera13Rep licatorSMM4cert EPNS_9TrxHandle E+0x9d) [0x7f6933b7964d ] galera/ libgalera_ smm.so( _ZN6galera13Rep licatorSMM10pre _commitEPNS_ 9TrxHandleEP14w srep_trx_ meta+0x69) [0x7f6933b7a4f9 ] galera/ libgalera_ smm.so( galera_ pre_commit+ 0x170)[ 0x7f6933b90180] mysqld( _Z22wsrep_ run_wsrep_ commitP3THDP10h andlertonb+ 0x9a2)[ 0x7f694ad4cce2] mysqld( +0x49690b) [0x7f694ad4d90b ] mysqld( _Z15ha_ commit_ transP3THDb+ 0x1a6)[ 0x7f694adadae6] mysqld( _Z12trans_ commitP3THD+ 0x69)[0x7f694ad 22e19] mysqld( _Z21mysql_ execute_ commandP3THD+ 0x1112) [0x7f694ac5a7a2 ] mysqld( _Z11mysql_ parseP3THDPcjP1 2Parser_ state+0x144) [0x7f694ac614c4 ] mysqld( +0x3aa5f9) [0x7f694ac615f9 ] mysqld( _Z16dispatch_ command19enum_ server_ commandP3THDPcj +0x18d0) [0x7f694ac63520 ]
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...
140227 11:25:48 [Note] WSREP: Deleted page /srv/sql/
stack_bottom = 0x7f684d59de68 thread_stack 0x48000
/usr/sbin/
/usr/sbin/
/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/lib64/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/mysq...