Description:
Error log has:
2018-04-22T15:12:38.185689Z 0 [System] [MY-010931] [Server] /home/mdcallag/b/orig811/bin/mysqld: ready for connections. Version: '8.0.11' socket: '/tmp/mysql.sock' port: 3306 Source distribution.
2018-04-22T15:12:38.234749Z 0 [Warning] [MY-011302] [Server] Plugin mysqlx reported: 'Failed at SSL configuration: "SSL context is not usable without certificate and private key"'
2018-04-22T15:24:36.984054Z 0 [ERROR] [MY-000000] [InnoDB] InnoDB: Assertion failure: log0write.cc:1799:time_elapsed >= 0
InnoDB: thread 139746458191616
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: http://dev.mysql.com/doc/refman/8.0/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
15:24:36 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=1
max_threads=151
thread_count=2
connection_count=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 67841 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0
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 = 0 thread_stack 0x46000
/home/mdcallag/b/orig811/bin/mysqld(my_print_stacktrace(unsigned char*, unsigned long)+0x3d) [0x1b1461d]
/home/mdcallag/b/orig811/bin/mysqld(handle_fatal_signal+0x4c1) [0xd58441]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390) [0x7f1cae617390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38) [0x7f1cacb0a428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a) [0x7f1cacb0c02a]
/home/mdcallag/b/orig811/bin/mysqld(ut_dbg_assertion_failed(char const*, char const*, unsigned long)+0xea) [0xb25e13]
/home/mdcallag/b/orig811/bin/mysqld() [0x1ce5408]
/home/mdcallag/b/orig811/bin/mysqld(log_flusher(log_t*)+0x2fb) [0x1ce5fab]
/home/mdcallag/b/orig811/bin/mysqld(std::thread::_Impl<std::_Bind_simple<Runnable (void (*)(log_t*), log_t*)> >::_M_run()+0x68) [0x1ccbe18]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb8c80) [0x7f1cad476c80]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba) [0x7f1cae60d6ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f1cacbdc41d]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
How to repeat:
Bug occurs during sysbench prepare:
sysbench --db-driver=mysql --mysql-user=... --mysql-password=... --mysql-host=127.0.0.1 --mysql-db=test --mysql-storage-engine=innodb --range-size=100 --table-size=160000000 --tables=2 --events=0 --time=600 /home/mdcallag/b/sysbench10/share/sysbench/oltp_point_select.lua prepare
Bug occurs when I use the default value for innodb_log_file_size. But did not occur when I used innodb_log_file_size=1G. Soon I will determine whether this can be reproduced.
my.cnf with default for innodb_log_file_size is:
[mysqld]
sql_mode=no_engine_substitution,no_unsigned_subtraction
default_tmp_storage_engine=MyISAM
tmpdir=/data/m/my
#query_cache_size=0
#query_cache_type=0
# slow_query_log_file=/data/m/my/slow.log
long_query_time=5
# skip_log_bin
log_bin=/data/m/my/binlogs/bl
max_binlog_size=128M
sync_binlog=0
server_id=77
binlog_format=ROW
datadir=/data/m/my/data
innodb_max_dirty_pages_pct=75
innodb_adaptive_flushing=1
innodb_file_per_table=1
innodb_flush_log_at_trx_commit=2
innodb_flush_method=O_DIRECT
innodb_doublewrite=1
innodb_page_size=16K
innodb_buffer_pool_size=12G
innodb_flush_neighbors=0
innodb_io_capacity=10000
innodb_io_capacity_max=20000
innodb_lru_scan_depth=5000
#loose_innodb_buffer_pool_instances=1
innodb_data_home_dir=/data/m/my/data
innodb_data_file_path=ibdata1:512M:autoextend
innodb_log_group_home_dir=/data/m/my/txlogs
#innodb_log_file_size=1G
slow_query_log=1
innodb_purge_threads=1
performance_schema=1
ssl=0
default_authentication_plugin=mysql_native_password
character_set_server=latin1
collation_server=latin1_swedish_ci
[mysqld_safe]
malloc-lib=/usr/lib/x86_64-linux-gnu/libjemalloc.so
