Description:
Scenario: Verify setting of RPL variables in GR environment with different GR modes.
Expected output: In READ_ONLY mode, either the affecting variable settings should be blocked or there must be no ASSERTION failure.
Actual output: Assertion failure.
mysqld.2.err:-
===============
....
2017-12-26T19:19:24.744367Z 11 [System] [MY-010035] Changed GTID_MODE from ON to ON_PERMISSIVE.
mysqld: /Narendra/mysql_work/git_repo/mysql-8.0/sql/sql_error.cc:407: void Diagnostics_area::set_ok_status(ulonglong, ulonglong, const char*): Assertion `! is_set()' failed.
19:19:24 UTC - 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.
Attempting to collect some information that could help diagnose the problem.
As this is a crash and something is definitely wrong, the information
collection process might fail.
key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=7
max_threads=151
thread_count=6
connection_count=5
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68194 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x7fe4603db840
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 = 7fe4bdac8d38 thread_stack 0x46000
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(my_print_stacktrace+0x55) [0x3ec3773]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(handle_fatal_signal+0x424) [0x30493b9]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390) [0x7fe4c6816390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38) [0x7fe4c55b8428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a) [0x7fe4c55ba02a]
/lib/x86_64-linux-gnu/libc.so.6(+0x2dbd7) [0x7fe4c55b0bd7]
/lib/x86_64-linux-gnu/libc.so.6(+0x2dc82) [0x7fe4c55b0c82]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(Diagnostics_area::set_ok_status(unsigned long long, unsigned long long, char const*)+0x75) [0x2c56341]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(my_ok(THD*, unsigned long long, unsigned long long, char const*)+0x4e) [0x2c4df49]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(mysql_execute_command(THD*, bool)+0x27aa) [0x2cb4792]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(mysql_parse(THD*, Parser_state*)+0x65e) [0x2cb9ff4]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(dispatch_command(THD*, COM_DATA const*, enum_server_command)+0x129c) [0x2caf9cd]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld(do_command(THD*)+0x484) [0x2cae391]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld() [0x30390e1]
/Narendra/mysql_work/git_repo/mysql-8.0/install/bin/mysqld() [0x450ebdc]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba) [0x7fe4c680c6ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fe4c568a3dd]
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7fe4600e8a00): SET GLOBAL gtid_mode=2
Connection ID (thread ID): 11
Status: NOT_KILLED
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.
Writing a core file
safe_process[24043]: Child process: 24044, killed by signal: 6
How to repeat:
Details:-
=========
Version checked: 8.0.5
Steps to repro:-
=================
Run command: ./mtr group_replication.gr_bug1.test
Where,
$ cat gr_bug1.test
--source ../inc/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--let $rpl_group_replication_single_primary_mode=1
--source ../inc/group_replication.inc
# Start group replication on all the servers
--source ../inc/start_and_bootstrap_group_replication.inc
--let $member1_uuid= query_get_value(SELECT @@SERVER_UUID, @@SERVER_UUID, 1)
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc
# Making sure this is the primary server
--let $group_replication_expected_uuid= $member1_uuid
--source ../inc/gr_wait_primary_member_uuid.inc
--let $skip_reset_read_mode=1
--source include/stop_group_replication.inc
SELECT @@super_read_only, @@read_only;
SET GLOBAL gtid_mode=2;
--source ../inc/group_replication_end.inc
