2018-08-22T19:48:08.238317Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-08-22T19:48:10.406184Z 0 [Warning] InnoDB: New log files created, LSN=45790
2018-08-22T19:48:10.933527Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2018-08-22T19:48:11.184579Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 4cd576e7-a644-11e8-83b0-f430b9559f06.
2018-08-22T19:48:11.240373Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2018-08-22T19:48:11.243878Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option.
2018-08-22T19:48:41.827170Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-08-22T19:48:41.830581Z 0 [Note] mysqld (mysqld 5.7.23-0ubuntu0.18.04.1) starting as process 15346 ...
2018-08-22T19:48:41.842354Z 0 [Note] InnoDB: PUNCH HOLE support available
2018-08-22T19:48:41.842447Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-08-22T19:48:41.842466Z 0 [Note] InnoDB: Uses event mutexes
2018-08-22T19:48:41.842483Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2018-08-22T19:48:41.842500Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2018-08-22T19:48:41.842517Z 0 [Note] InnoDB: Using Linux native AIO
2018-08-22T19:48:41.843093Z 0 [Note] InnoDB: Number of pools: 1
2018-08-22T19:48:41.843295Z 0 [Note] InnoDB: Using CPU crc32 instructions
2018-08-22T19:48:41.846749Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2018-08-22T19:48:41.871292Z 0 [Note] InnoDB: Completed initialization of buffer pool
2018-08-22T19:48:41.876534Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2018-08-22T19:48:41.892173Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2018-08-22T19:48:41.965625Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2018-08-22T19:48:41.965792Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2018-08-22T19:48:42.205500Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2018-08-22T19:48:42.212889Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2018-08-22T19:48:42.213029Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2018-08-22T19:48:42.215805Z 0 [Note] InnoDB: Waiting for purge to start
2018-08-22T19:48:42.266545Z 0 [Note] InnoDB: 5.7.23 started; log sequence number 2590420
2018-08-22T19:48:42.268140Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2018-08-22T19:48:42.268980Z 0 [Note] Plugin 'FEDERATED' is disabled.
2018-08-22T19:48:42.280750Z 0 [Note] InnoDB: Buffer pool(s) load completed at 180822 19:48:42
2018-08-22T19:48:42.287196Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2018-08-22T19:48:42.329597Z 0 [Warning] Insecure configuration for --pid-file: Location '/tmp' in the path is accessible to all OS users. Consider choosing a different directory.
2018-08-22T19:48:42.354564Z 0 [Note] Event Scheduler: Loaded 0 events
2018-08-22T19:48:42.355147Z 0 [Note] mysqld: ready for connections.
Version: '5.7.23-0ubuntu0.18.04.1'  socket: '/tmp/tmp.TBciSQNQeF/mysqld.sock'  port: 0  (Ubuntu)
2018-08-22T19:48:42.480791Z 0 [Note] Giving 0 client threads a chance to die gracefully
2018-08-22T19:48:42.480949Z 0 [Note] Shutting down slave threads
2018-08-22T19:48:42.481034Z 0 [Note] Forcefully disconnecting 0 remaining clients
2018-08-22T19:48:42.481105Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2018-08-22T19:48:42.481503Z 0 [Note] Binlog end
2018-08-22T19:48:42.483444Z 0 [Note] Shutting down plugin 'auth_socket'
2018-08-22T19:48:42.483534Z 0 [Note] Shutting down plugin 'ngram'
2018-08-22T19:48:42.483574Z 0 [Note] Shutting down plugin 'partition'
2018-08-22T19:48:42.483613Z 0 [Note] Shutting down plugin 'BLACKHOLE'
2018-08-22T19:48:42.483656Z 0 [Note] Shutting down plugin 'ARCHIVE'
2018-08-22T19:48:42.483696Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2018-08-22T19:48:42.483894Z 0 [Note] Shutting down plugin 'MRG_MYISAM'
2018-08-22T19:48:42.483941Z 0 [Note] Shutting down plugin 'MyISAM'
2018-08-22T19:48:42.484001Z 0 [Note] Shutting down plugin 'INNODB_SYS_VIRTUAL'
2018-08-22T19:48:42.484042Z 0 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'