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MDEV-12747 - main.mysqld_option_err fails in buildbot with timeout

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thd_destructor_proxy() may miss abort signal if innobase_end() is running
concurrently, which causes server hang in pthread_join() on shutdown.

The problem was that aborting wasn't protected by mutex:
proxy thr: while (!myvar->abort)
end thr: running->abort = 1;
end thr: mysql_cond_broadcast(...);
proxy thr: mysql_cond_wait(...); // nobody to awake it
end thr: pthread_join(...); // waits for proxy thr

Also made main.mysqld_option_err reentrant.
This commit is contained in:
Sergey Vojtovich
2019-01-21 19:10:38 +04:00
parent 71261e3188
commit 382115b992
2 changed files with 11 additions and 9 deletions
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2
mysql-test/main/mysqld_option_err.test
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@ -56,4 +56,6 @@ mkdir $MYSQLTEST_VARDIR/tmp/mysqld_option_err;
--error 2
--exec $MYSQLD_BOOTSTRAP_CMD --not-known-option --help --verbose >>$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
rmdir $MYSQLTEST_VARDIR/tmp/mysqld_option_err;
--echo Done.