Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Incomplete
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10.1.25
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Amazon AWS, CentOS 6 x86_64, Galera 3 nodes cluster
Description
This is first and one-time bug, I have "mysqlcheck --skip-write-binlog -a -A" running nightly on Galera cluster by cron, each node runs it different time. The last time this analyze or mysqld during analyze crashed, here is log from mysqld.log:
2017-07-14 13:24:50 7f649b1fa700 InnoDB: FTS Optimize Removing table doc_live_wi/#sql2-5c22-112eeb4
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170716 5:40:19 [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 https://mariadb.com/kb/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: 10.1.25-MariaDB
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key_buffer_size=134217728
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read_buffer_size=131072
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max_used_connections=77
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max_threads=3002
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thread_count=50
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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 = 6725132 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: 0x7f62d7e8a008
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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 = 0x7f61bdf14140 thread_stack 0x48400
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2017-07-16 10:25:28 140094283446016 [Note] WSREP: (01c439e4, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: tcp://10.10.1.133:4567
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This Galera node did not failed, did not make SST, nothing, it just continue running. However I had stalled "ANALYZE NO_WRITE_TO_BINLOG TABLE `wo
rkflow_state`" statement in "Unlocking tables" state. And next day when "DROP TRIGGER" on the same table was executed - it stalls in the same "Unlocking tables" state and locked whole Galera cluster. I tried to kill the ANALYZE thread with no luck, then I tried to shutdown this Galera node also with no luck - it stalled, the last message was
2017-07-17 3:26:22 140030532045568 [Note] WSREP: killing local connection: 28899415
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I waited almost 30 minutes, then made kill -9 to mysqld and after start this node successfully connected to Galera using IST.
Attachments
Issue Links
- relates to
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MDEV-12989 Crash with "an invalid pointer" error
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- Closed
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