2016-10-18T14:24:10.968360Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-10-18T14:24:11.247268Z 0 [Warning] InnoDB: New log files created, LSN=45790
2016-10-18T14:24:11.301423Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2016-10-18T14:24:11.357851Z 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: 89c9918b-953e-11e6-8846-fa163e2ae47b.
2016-10-18T14:24:11.359400Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2016-10-18T14:24:11.359849Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option.
2016-10-18T14:24:16.598413Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2016-10-18T14:24:16.598480Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2016-10-18T14:24:16.801695Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-10-18T14:24:16.803776Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.15-0ubuntu0.16.04.1) starting as process 2399 ...
2016-10-18T14:24:16.809808Z 0 [Note] InnoDB: PUNCH HOLE support available
2016-10-18T14:24:16.809843Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-10-18T14:24:16.809866Z 0 [Note] InnoDB: Uses event mutexes
2016-10-18T14:24:16.809875Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-10-18T14:24:16.809882Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2016-10-18T14:24:16.809888Z 0 [Note] InnoDB: Using Linux native AIO
2016-10-18T14:24:16.810177Z 0 [Note] InnoDB: Number of pools: 1
2016-10-18T14:24:16.810315Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-10-18T14:24:16.812598Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-10-18T14:24:16.823742Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-10-18T14:24:16.826505Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2016-10-18T14:24:16.839447Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-10-18T14:24:16.849640Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-10-18T14:24:16.849724Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-10-18T14:24:16.869760Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-10-18T14:24:16.870773Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-10-18T14:24:16.870790Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-10-18T14:24:16.871132Z 0 [Note] InnoDB: Waiting for purge to start
2016-10-18T14:24:16.921388Z 0 [Note] InnoDB: 5.7.15 started; log sequence number 2528946
2016-10-18T14:24:16.921676Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-10-18T14:24:16.928126Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2016-10-18T14:24:16.928162Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-10-18T14:24:16.928191Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-10-18T14:24:16.928244Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-10-18T14:24:16.931128Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2016-10-18T14:24:16.933116Z 0 [Note] InnoDB: Buffer pool(s) load completed at 161018  7:24:16
2016-10-18T14:24:16.942928Z 0 [Note] Event Scheduler: Loaded 0 events
2016-10-18T14:24:16.943225Z 0 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.7.15-0ubuntu0.16.04.1'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  (Ubuntu)
2016-10-18T14:24:17.608852Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO)
2016-10-18T14:24:17.637176Z 3 [Note] Access denied for user 'root'@'localhost' (using password: NO)
2016-10-18T14:24:30.932941Z 4 [Note] Access denied for user 'root'@'localhost' (using password: NO)