5.6.27

- 1st run: ignored
- 2nd run: 00:01:54
- 3rd run: 00:01:56
- 4th run: 00:02:15

Startup log for runs 2 through 4 pasted below:

##

root@ip-172-31-13-38:~# ./run_mysql.sh 5.6.27
2015-12-19 12:24:04 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-12-19 12:24:04 0 [Note] bin/mysqld (mysqld 5.6.27) starting as process 2146 ...
2015-12-19 12:24:04 2146 [Note] Plugin 'FEDERATED' is disabled.
2015-12-19 12:24:04 2146 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-12-19 12:24:04 2146 [Note] InnoDB: The InnoDB memory heap is disabled
2015-12-19 12:24:04 2146 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-12-19 12:24:04 2146 [Note] InnoDB: Memory barrier is not used
2015-12-19 12:24:04 2146 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-12-19 12:24:04 2146 [Note] InnoDB: Using CPU crc32 instructions
2015-12-19 12:24:04 2146 [Note] InnoDB: Initializing buffer pool, size = 4.0G
2015-12-19 12:24:04 2146 [Note] InnoDB: Completed initialization of buffer pool
2015-12-19 12:24:04 2146 [Note] InnoDB: Highest supported file format is Barracuda.
2015-12-19 12:24:04 2146 [Note] InnoDB: The log sequence numbers 45288117204 and 45288117204 in ibdata files do not match the log sequence number 45288117214 in the ib_logfiles!
2015-12-19 12:24:04 2146 [Note] InnoDB: Database was not shutdown normally!
2015-12-19 12:24:04 2146 [Note] InnoDB: Starting crash recovery.
2015-12-19 12:24:04 2146 [Note] InnoDB: Reading tablespace information from the .ibd files...
2015-12-19 12:25:56 2146 [Note] InnoDB: Restoring possible half-written data pages
2015-12-19 12:25:56 2146 [Note] InnoDB: from the doublewrite buffer...
2015-12-19 12:25:58 2146 [Note] InnoDB: 128 rollback segment(s) are active.
2015-12-19 12:25:58 2146 [Note] InnoDB: Waiting for purge to start
2015-12-19 12:25:58 2146 [Note] InnoDB: 5.6.27 started; log sequence number 45288117214
2015-12-19 12:25:58 2146 [Note] Server hostname (bind-address): '127.0.0.1'; port: 5627
2015-12-19 12:25:58 2146 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2015-12-19 12:25:58 2146 [Note] Server socket created on IP: '127.0.0.1'.
2015-12-19 12:25:58 2146 [Note] Event Scheduler: Loaded 0 events
2015-12-19 12:25:58 2146 [Note] bin/mysqld: ready for connections.
Version: '5.6.27'  socket: '/tmp/mysql-5.6.27.sock'  port: 5627  Source distribution

##

root@ip-172-31-13-38:~# ./run_mysql.sh 5.6.27
2015-12-19 12:27:33 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-12-19 12:27:33 0 [Note] bin/mysqld (mysqld 5.6.27) starting as process 2205 ...
2015-12-19 12:27:33 2205 [Note] Plugin 'FEDERATED' is disabled.
2015-12-19 12:27:33 2205 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-12-19 12:27:33 2205 [Note] InnoDB: The InnoDB memory heap is disabled
2015-12-19 12:27:33 2205 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-12-19 12:27:33 2205 [Note] InnoDB: Memory barrier is not used
2015-12-19 12:27:33 2205 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-12-19 12:27:33 2205 [Note] InnoDB: Using CPU crc32 instructions
2015-12-19 12:27:33 2205 [Note] InnoDB: Initializing buffer pool, size = 4.0G
2015-12-19 12:27:34 2205 [Note] InnoDB: Completed initialization of buffer pool
2015-12-19 12:27:34 2205 [Note] InnoDB: Highest supported file format is Barracuda.
2015-12-19 12:27:34 2205 [Note] InnoDB: The log sequence numbers 45288117224 and 45288117224 in ibdata files do not match the log sequence number 45288117234 in the ib_logfiles!
2015-12-19 12:27:34 2205 [Note] InnoDB: Database was not shutdown normally!
2015-12-19 12:27:34 2205 [Note] InnoDB: Starting crash recovery.
2015-12-19 12:27:34 2205 [Note] InnoDB: Reading tablespace information from the .ibd files...
2015-12-19 12:29:28 2205 [Note] InnoDB: Restoring possible half-written data pages
2015-12-19 12:29:28 2205 [Note] InnoDB: from the doublewrite buffer...
2015-12-19 12:29:29 2205 [Note] InnoDB: 128 rollback segment(s) are active.
2015-12-19 12:29:29 2205 [Note] InnoDB: Waiting for purge to start
2015-12-19 12:29:29 2205 [Note] InnoDB: 5.6.27 started; log sequence number 45288117234
2015-12-19 12:29:29 2205 [Note] Server hostname (bind-address): '127.0.0.1'; port: 5627
2015-12-19 12:29:29 2205 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2015-12-19 12:29:29 2205 [Note] Server socket created on IP: '127.0.0.1'.
2015-12-19 12:29:29 2205 [Note] Event Scheduler: Loaded 0 events
2015-12-19 12:29:29 2205 [Note] bin/mysqld: ready for connections.
Version: '5.6.27'  socket: '/tmp/mysql-5.6.27.sock'  port: 5627  Source distribution

##

root@ip-172-31-13-38:~# ./run_mysql.sh 5.6.27
2015-12-19 12:35:52 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-12-19 12:35:52 0 [Note] bin/mysqld (mysqld 5.6.27) starting as process 2261 ...
2015-12-19 12:35:52 2261 [Note] Plugin 'FEDERATED' is disabled.
2015-12-19 12:35:52 2261 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-12-19 12:35:52 2261 [Note] InnoDB: The InnoDB memory heap is disabled
2015-12-19 12:35:52 2261 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-12-19 12:35:52 2261 [Note] InnoDB: Memory barrier is not used
2015-12-19 12:35:52 2261 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-12-19 12:35:52 2261 [Note] InnoDB: Using CPU crc32 instructions
2015-12-19 12:35:52 2261 [Note] InnoDB: Initializing buffer pool, size = 4.0G
2015-12-19 12:35:53 2261 [Note] InnoDB: Completed initialization of buffer pool
2015-12-19 12:35:53 2261 [Note] InnoDB: Highest supported file format is Barracuda.
2015-12-19 12:35:53 2261 [Note] InnoDB: Log scan progressed past the checkpoint lsn 45288117260
2015-12-19 12:35:53 2261 [Note] InnoDB: Database was not shutdown normally!
2015-12-19 12:35:53 2261 [Note] InnoDB: Starting crash recovery.
2015-12-19 12:35:53 2261 [Note] InnoDB: Reading tablespace information from the .ibd files...
2015-12-19 12:38:06 2261 [Note] InnoDB: Restoring possible half-written data pages
2015-12-19 12:38:06 2261 [Note] InnoDB: from the doublewrite buffer...
InnoDB: Doing recovery: scanned up to log sequence number 45288117270
2015-12-19 12:38:07 2261 [Note] InnoDB: 128 rollback segment(s) are active.
2015-12-19 12:38:07 2261 [Note] InnoDB: Waiting for purge to start
2015-12-19 12:38:07 2261 [Note] InnoDB: 5.6.27 started; log sequence number 45288117270
2015-12-19 12:38:07 2261 [Note] Server hostname (bind-address): '127.0.0.1'; port: 5627
2015-12-19 12:38:07 2261 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2015-12-19 12:38:07 2261 [Note] Server socket created on IP: '127.0.0.1'.
2015-12-19 12:38:07 2261 [Note] Event Scheduler: Loaded 0 events
2015-12-19 12:38:07 2261 [Note] bin/mysqld: ready for connections.
Version: '5.6.27'  socket: '/tmp/mysql-5.6.27.sock'  port: 5627  Source distribution