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MySQL server has gone away #47335

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csdougliss opened this issue Dec 24, 2015 · 16 comments
Closed

MySQL server has gone away #47335

csdougliss opened this issue Dec 24, 2015 · 16 comments
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@csdougliss
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Using percona-server

mysqld --version:

mysqld Ver 5.6.25-73.1 for osx10.11 on x86_64 (Homebrew)

Frequently get this trying to run Magento 2 setup. Using PHP 7.0.1
@csdougliss
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Solved by max_allowed_packet=100M

@csdougliss csdougliss reopened this Jan 4, 2016
@csdougliss
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Still happens for me even with 500M, seems random. Percona server is latest, edited /etc/my.cnf

@csdougliss
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Same issue with mysql 5.7

@csdougliss
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Anybody - this is a big problem!

@DomT4
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DomT4 commented Jan 15, 2016

You really need to provide more detail here. Saying it has "gone away" isn't particularly easy to debug.

@csdougliss
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@DomT4 How can I provide more info? Thanks

@MikeMcQuaid
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@craigcarnell To help us debug this issue can you explain:

  • What you were trying to do (and why)
  • What happened
  • What you expected to happen
  • Step-by-step reproduction instructions (with as minimal input data as possible)

@MikeMcQuaid
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Also, sorry but you have not followed the requested steps on the Troubleshooting page: https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Troubleshooting.md#troubleshooting

Please follow (all of) these steps and post the information here so we can help you with your problem.

Thanks!

@dendisuhubdy dendisuhubdy mentioned this issue Jan 15, 2016
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@csdougliss
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@MikeMcQuaid I am using php 7 to run Magento.

It regularly crashes mysql

https://github.com/Homebrew/homebrew-php/issues/2794

@nijikon
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nijikon commented Jan 19, 2016

@craigcarnell Can you provide your mysql logs?

@csdougliss
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@nijikon

160121 09:18:33 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-21T09:18:33.870845Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-21T09:18:33.871413Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-21T09:18:33.871430Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-21T09:18:33.871528Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-21T09:18:33.871773Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 666 ...
2016-01-21T09:18:33.917852Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-21T09:18:33.931588Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-21T09:18:33.931618Z 0 [Note] InnoDB: Uses event mutexes
2016-01-21T09:18:33.931626Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-21T09:18:33.931634Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-21T09:18:33.932131Z 0 [Note] InnoDB: Number of pools: 1
2016-01-21T09:18:33.932591Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-21T09:18:33.977869Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-21T09:18:34.113795Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-21T09:18:34.130871Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-21T09:18:34.283611Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 19711672592
2016-01-21T09:18:34.283637Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19711672601
2016-01-21T09:18:34.283813Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19711672601
2016-01-21T09:18:34.283829Z 0 [Note] InnoDB: Database was not shutdown normally!
2016-01-21T09:18:34.283836Z 0 [Note] InnoDB: Starting crash recovery.
2016-01-21T09:18:51.185626Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-21T09:18:51.185660Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-21T09:18:51.185845Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-21T09:18:51.442335Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-21T09:18:51.444020Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-21T09:18:51.444044Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-21T09:18:51.444289Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-21T09:18:51.494622Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 17378ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T09:18:51.494647Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19711672601
2016-01-21T09:18:51.494813Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-21T09:18:51.494820Z 0 [Note] InnoDB: not started
2016-01-21T09:18:51.495111Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-21T09:18:51.546954Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160121  9:18:51
2016-01-21T09:18:51.558969Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-21T09:18:51.558997Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-21T09:18:51.567102Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-21T09:18:51.567206Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-21T09:18:51.708566Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-21T09:18:51.709160Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-21T09:18:51.709197Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-21T09:18:53.298034Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-21T09:18:53.298227Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-21T09:55:27.971441Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.053069Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.129336Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.129492Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.188654Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.189591Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.279268Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:28.288467Z 0 [Warning] File Descriptor 1228 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:46.859865Z 0 [Warning] File Descriptor 1238 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:46.979326Z 0 [Warning] File Descriptor 1238 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:46.993378Z 0 [Warning] File Descriptor 1238 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:47.065052Z 0 [Warning] File Descriptor 1238 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:47.095210Z 0 [Warning] File Descriptor 1238 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:50.491113Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:50.637737Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:50.835150Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:50.909215Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:50.990091Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.023822Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.076600Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.115306Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.191857Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.286847Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.355395Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.440363Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.508658Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.587352Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.651756Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.733311Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.806246Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.843068Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.911140Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.923302Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:51.987548Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T09:55:52.002327Z 0 [Warning] File Descriptor 1173 exceedeed FD_SETSIZE=1024
2016-01-21T10:30:34.469170Z 0 [Warning] File Descriptor 1196 exceedeed FD_SETSIZE=1024
2016-01-21T10:33:37.009094Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 58207ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T11:13:58.012686Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 70006ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T11:38:02.904857Z 0 [Warning] File Descriptor 1198 exceedeed FD_SETSIZE=1024
2016-01-21T15:02:16.006222Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 40595ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T15:05:06.660240Z 0 [Warning] File Descriptor 1185 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:06.786718Z 0 [Warning] File Descriptor 1185 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:06.793268Z 0 [Warning] File Descriptor 1185 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.546767Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.547718Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.659316Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.670048Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.833125Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.835013Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.915704Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:07.925983Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.007469Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.198460Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.265290Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.359381Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.385313Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.484469Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.512308Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.580362Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.600499Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.643690Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.718083Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.778537Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:08.886097Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:09.032244Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:09.177304Z 0 [Warning] File Descriptor 1197 exceedeed FD_SETSIZE=1024
2016-01-21T15:05:28.224262Z 0 [Note] Giving 0 client threads a chance to die gracefully
2016-01-21T15:05:28.224287Z 0 [Note] Shutting down slave threads
2016-01-21T15:05:28.235337Z 0 [Note] Forcefully disconnecting 0 remaining clients
2016-01-21T15:05:28.235360Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2016-01-21T15:05:28.235403Z 0 [Note] Binlog end
2016-01-21T15:05:28.312603Z 0 [Note] Shutting down plugin 'ngram'
2016-01-21T15:05:28.312637Z 0 [Note] Shutting down plugin 'partition'
2016-01-21T15:05:28.312647Z 0 [Note] Shutting down plugin 'BLACKHOLE'
2016-01-21T15:05:28.312657Z 0 [Note] Shutting down plugin 'ARCHIVE'
2016-01-21T15:05:28.312663Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2016-01-21T15:05:28.312715Z 0 [Note] Shutting down plugin 'MRG_MYISAM'
2016-01-21T15:05:28.318384Z 0 [Note] Shutting down plugin 'MyISAM'
2016-01-21T15:05:28.318434Z 0 [Note] Shutting down plugin 'INNODB_SYS_VIRTUAL'
2016-01-21T15:05:28.318444Z 0 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2016-01-21T15:05:28.318449Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2016-01-21T15:05:28.318454Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2016-01-21T15:05:28.318459Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2016-01-21T15:05:28.318464Z 0 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2016-01-21T15:05:28.318468Z 0 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2016-01-21T15:05:28.318473Z 0 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2016-01-21T15:05:28.318478Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2016-01-21T15:05:28.318482Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2016-01-21T15:05:28.318487Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2016-01-21T15:05:28.318491Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2016-01-21T15:05:28.318496Z 0 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2016-01-21T15:05:28.318500Z 0 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2016-01-21T15:05:28.318505Z 0 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2016-01-21T15:05:28.318510Z 0 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2016-01-21T15:05:28.318515Z 0 [Note] Shutting down plugin 'INNODB_METRICS'
2016-01-21T15:05:28.318519Z 0 [Note] Shutting down plugin 'INNODB_TEMP_TABLE_INFO'
2016-01-21T15:05:28.318524Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2016-01-21T15:05:28.318529Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2016-01-21T15:05:28.318534Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2016-01-21T15:05:28.318538Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2016-01-21T15:05:28.318543Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2016-01-21T15:05:28.318547Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2016-01-21T15:05:28.318552Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM'
2016-01-21T15:05:28.318557Z 0 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2016-01-21T15:05:28.318562Z 0 [Note] Shutting down plugin 'INNODB_CMP'
2016-01-21T15:05:28.318566Z 0 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2016-01-21T15:05:28.318571Z 0 [Note] Shutting down plugin 'INNODB_LOCKS'
2016-01-21T15:05:28.318576Z 0 [Note] Shutting down plugin 'INNODB_TRX'
2016-01-21T15:05:28.318581Z 0 [Note] Shutting down plugin 'InnoDB'
2016-01-21T15:05:28.318634Z 0 [Note] InnoDB: FTS optimize thread exiting.
2016-01-21T15:05:28.318684Z 0 [Note] InnoDB: Starting shutdown...
2016-01-21T15:05:28.418924Z 0 [Note] InnoDB: Dumping buffer pool(s) to /usr/local/var/mysql/ib_buffer_pool
2016-01-21T15:05:28.435309Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 160121 15:05:28
160121 15:05:28 mysqld_safe A mysqld process already exists
2016-01-21T15:05:29.866946Z 0 [Note] InnoDB: Shutdown completed; log sequence number 19970918590
2016-01-21T15:05:29.882895Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-21T15:05:29.882922Z 0 [Note] Shutting down plugin 'MEMORY'
2016-01-21T15:05:29.883150Z 0 [Note] Shutting down plugin 'CSV'
2016-01-21T15:05:29.883164Z 0 [Note] Shutting down plugin 'sha256_password'
2016-01-21T15:05:29.883169Z 0 [Note] Shutting down plugin 'mysql_native_password'
2016-01-21T15:05:29.883358Z 0 [Note] Shutting down plugin 'binlog'
2016-01-21T15:05:29.897369Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: Shutdown complete

160121 15:05:38 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-21T15:05:39.189233Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-21T15:05:39.189402Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-21T15:05:39.189413Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-21T15:05:39.189499Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-21T15:05:39.189562Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 25708 ...
2016-01-21T15:05:39.230460Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-21T15:05:39.232047Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-21T15:05:39.232067Z 0 [Note] InnoDB: Uses event mutexes
2016-01-21T15:05:39.232072Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-21T15:05:39.232079Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-21T15:05:39.232431Z 0 [Note] InnoDB: Number of pools: 1
2016-01-21T15:05:39.232539Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-21T15:05:39.243995Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-21T15:05:39.257211Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-21T15:05:39.278491Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-21T15:05:40.625374Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-21T15:05:40.625503Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-21T15:05:40.749790Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-21T15:05:40.751056Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-21T15:05:40.751087Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-21T15:05:40.751284Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-21T15:05:40.803358Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19970918590
2016-01-21T15:05:40.803550Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-21T15:05:40.803678Z 0 [Note] InnoDB: not started
2016-01-21T15:05:40.803859Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-21T15:05:40.879682Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160121 15:05:40
2016-01-21T15:05:41.058732Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-21T15:05:41.058748Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-21T15:05:41.091869Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-21T15:05:41.091945Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-21T15:05:41.221967Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-21T15:05:41.222539Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-21T15:05:41.222578Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-21T15:05:43.208832Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-21T15:05:43.209047Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-21T15:37:00.006344Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 64944ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T15:59:06.007206Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 105166ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
160121 16:01:31 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-21T16:01:33.266914Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-21T16:01:33.267405Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-21T16:01:33.267415Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-21T16:01:33.267499Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-21T16:01:33.267669Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 521 ...
2016-01-21T16:01:33.274239Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-21T16:01:33.276738Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-21T16:01:33.276763Z 0 [Note] InnoDB: Uses event mutexes
2016-01-21T16:01:33.276771Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-21T16:01:33.276779Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-21T16:01:33.277249Z 0 [Note] InnoDB: Number of pools: 1
2016-01-21T16:01:33.277774Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-21T16:01:33.583654Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-21T16:01:33.737445Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-21T16:01:33.767772Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-21T16:01:33.785103Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 19971126284
2016-01-21T16:01:33.785887Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19971126293
2016-01-21T16:01:33.786769Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19971126293
2016-01-21T16:01:33.786804Z 0 [Note] InnoDB: Database was not shutdown normally!
2016-01-21T16:01:33.786819Z 0 [Note] InnoDB: Starting crash recovery.
2016-01-21T16:01:54.211369Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-21T16:01:54.211394Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-21T16:01:54.211512Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-21T16:01:54.362597Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-21T16:01:54.363554Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-21T16:01:54.363570Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-21T16:01:54.363799Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-21T16:01:54.413927Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 20651ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T16:01:54.413981Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19971126293
2016-01-21T16:01:54.414144Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-21T16:01:54.414159Z 0 [Note] InnoDB: not started
2016-01-21T16:01:54.457093Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-21T16:01:56.282699Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-21T16:01:56.282716Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-21T16:01:56.413228Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-21T16:01:56.413304Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-21T16:01:56.691276Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-21T16:01:56.691944Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-21T16:01:56.692011Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-21T16:02:11.567486Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-21T16:02:11.567640Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-21T16:02:43.932237Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160121 16:02:43
2016-01-21T16:44:56.300678Z 3 [Note] Aborted connection 3 to db: 'unconnected' user: 'root' host: 'localhost' (Got an error reading communication packets)

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160109 09:18:33 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-09T09:18:35.132605Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-09T09:18:35.138757Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-09T09:18:35.138769Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-09T09:18:35.139509Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-09T09:18:35.139807Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 468 ...
2016-01-09T09:18:35.147136Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-09T09:18:35.150133Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-09T09:18:35.150159Z 0 [Note] InnoDB: Uses event mutexes
2016-01-09T09:18:35.150167Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-09T09:18:35.150176Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-09T09:18:35.150654Z 0 [Note] InnoDB: Number of pools: 1
2016-01-09T09:18:35.151046Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-09T09:18:35.366882Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-09T09:18:35.685272Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-09T09:18:35.730033Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-09T09:18:35.734679Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 19004324316
2016-01-09T09:18:35.734700Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19004324325
2016-01-09T09:18:35.734897Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19004324325
2016-01-09T09:18:35.734912Z 0 [Note] InnoDB: Database was not shutdown normally!
2016-01-09T09:18:35.734919Z 0 [Note] InnoDB: Starting crash recovery.
2016-01-09T09:18:56.482676Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-09T09:18:56.482698Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-09T09:18:56.482774Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-09T09:18:56.500456Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-09T09:18:56.501357Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-09T09:18:56.501371Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-09T09:18:56.501549Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-09T09:18:56.551909Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 20853ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T09:18:56.551918Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19004324325
2016-01-09T09:18:56.552163Z 0 [Note] InnoDB: not started
2016-01-09T09:18:56.552195Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-09T09:18:56.552985Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-09T09:18:56.564574Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-09T09:18:56.564592Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-09T09:18:56.570165Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-09T09:18:56.570235Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-09T09:18:56.579012Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-09T09:18:56.579584Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-09T09:18:56.580009Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-09T09:18:58.019415Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160109  9:18:58
2016-01-09T09:18:58.877324Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-09T09:18:58.877455Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-09T10:08:44.007126Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 735232ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T11:47:09.008143Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 5486040ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T14:06:55.007702Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 4320536ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T16:57:17.010360Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 9105994ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T19:06:32.007121Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 53165ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T20:54:09.009737Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 6422854ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T21:07:16.007319Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 13128ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T21:21:30.006589Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 13543ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-09T21:32:28.148720Z 0 [Note] Giving 0 client threads a chance to die gracefully
2016-01-09T21:32:28.148769Z 0 [Note] Shutting down slave threads
2016-01-09T21:32:28.150153Z 0 [Note] Forcefully disconnecting 0 remaining clients
2016-01-09T21:32:28.150201Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2016-01-09T21:32:28.150303Z 0 [Note] Binlog end
2016-01-09T21:32:28.151560Z 0 [Note] Shutting down plugin 'ngram'
2016-01-09T21:32:28.151583Z 0 [Note] Shutting down plugin 'partition'
2016-01-09T21:32:28.151595Z 0 [Note] Shutting down plugin 'BLACKHOLE'
2016-01-09T21:32:28.151607Z 0 [Note] Shutting down plugin 'ARCHIVE'
2016-01-09T21:32:28.151617Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2016-01-09T21:32:28.151677Z 0 [Note] Shutting down plugin 'MRG_MYISAM'
2016-01-09T21:32:28.151697Z 0 [Note] Shutting down plugin 'MyISAM'
2016-01-09T21:32:28.151737Z 0 [Note] Shutting down plugin 'INNODB_SYS_VIRTUAL'
2016-01-09T21:32:28.151749Z 0 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2016-01-09T21:32:28.151759Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2016-01-09T21:32:28.151769Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2016-01-09T21:32:28.151778Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2016-01-09T21:32:28.151788Z 0 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2016-01-09T21:32:28.151804Z 0 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2016-01-09T21:32:28.151820Z 0 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2016-01-09T21:32:28.151833Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2016-01-09T21:32:28.151843Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2016-01-09T21:32:28.151853Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2016-01-09T21:32:28.151863Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2016-01-09T21:32:28.151873Z 0 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2016-01-09T21:32:28.151882Z 0 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2016-01-09T21:32:28.151892Z 0 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2016-01-09T21:32:28.151902Z 0 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2016-01-09T21:32:28.151912Z 0 [Note] Shutting down plugin 'INNODB_METRICS'
2016-01-09T21:32:28.151921Z 0 [Note] Shutting down plugin 'INNODB_TEMP_TABLE_INFO'
2016-01-09T21:32:28.151952Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2016-01-09T21:32:28.151963Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2016-01-09T21:32:28.151972Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2016-01-09T21:32:28.151982Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2016-01-09T21:32:28.151992Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2016-01-09T21:32:28.152002Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2016-01-09T21:32:28.152012Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM'
2016-01-09T21:32:28.152021Z 0 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2016-01-09T21:32:28.152031Z 0 [Note] Shutting down plugin 'INNODB_CMP'
2016-01-09T21:32:28.152041Z 0 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2016-01-09T21:32:28.152051Z 0 [Note] Shutting down plugin 'INNODB_LOCKS'
2016-01-09T21:32:28.152060Z 0 [Note] Shutting down plugin 'INNODB_TRX'
2016-01-09T21:32:28.152070Z 0 [Note] Shutting down plugin 'InnoDB'
2016-01-09T21:32:28.152172Z 0 [Note] InnoDB: FTS optimize thread exiting.
2016-01-09T21:32:28.152262Z 0 [Note] InnoDB: Starting shutdown...
160120 09:22:30 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-20T09:22:32.471810Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-20T09:22:32.473749Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-20T09:22:32.473773Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-20T09:22:32.473891Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-20T09:22:32.474286Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 468 ...
2016-01-20T09:22:32.483003Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-20T09:22:32.486177Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-20T09:22:32.486205Z 0 [Note] InnoDB: Uses event mutexes
2016-01-20T09:22:32.486215Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-20T09:22:32.486225Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-20T09:22:32.486731Z 0 [Note] InnoDB: Number of pools: 1
2016-01-20T09:22:32.487161Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-20T09:22:32.519242Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-20T09:22:32.824980Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-20T09:22:32.844154Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-20T09:22:32.855344Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 19711672536
2016-01-20T09:22:32.855372Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19711672545
2016-01-20T09:22:32.855550Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19711672545
2016-01-20T09:22:32.855563Z 0 [Note] InnoDB: Database was not shutdown normally!
2016-01-20T09:22:32.855569Z 0 [Note] InnoDB: Starting crash recovery.
2016-01-20T09:22:35.872541Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-20T09:22:35.872571Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-20T09:22:35.872673Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-20T09:22:35.945964Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-20T09:22:35.947646Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-20T09:22:35.947672Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-20T09:22:35.948005Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-20T09:22:36.001824Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19711672545
2016-01-20T09:22:36.001953Z 0 [Note] InnoDB: not started
2016-01-20T09:22:36.001968Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-20T09:22:36.002413Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-20T09:22:36.009370Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-20T09:22:36.009392Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-20T09:22:36.017107Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-20T09:22:36.017205Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-20T09:22:36.028684Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-20T09:22:36.029451Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-20T09:22:36.029492Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-20T09:22:36.047112Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160120  9:22:36
2016-01-20T09:22:36.114453Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-20T09:22:36.114593Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-20T10:13:28.007481Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 57333ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-20T11:18:46.009076Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 3632272ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-20T11:32:25.583306Z 0 [Note] Giving 0 client threads a chance to die gracefully
2016-01-20T11:32:25.583331Z 0 [Note] Shutting down slave threads
2016-01-20T11:32:25.584488Z 0 [Note] Forcefully disconnecting 0 remaining clients
2016-01-20T11:32:25.584512Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2016-01-20T11:32:25.584562Z 0 [Note] Binlog end
2016-01-20T11:32:25.585225Z 0 [Note] Shutting down plugin 'ngram'
2016-01-20T11:32:25.585236Z 0 [Note] Shutting down plugin 'partition'
2016-01-20T11:32:25.585242Z 0 [Note] Shutting down plugin 'BLACKHOLE'
2016-01-20T11:32:25.585248Z 0 [Note] Shutting down plugin 'ARCHIVE'
2016-01-20T11:32:25.585253Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2016-01-20T11:32:25.585282Z 0 [Note] Shutting down plugin 'MRG_MYISAM'
2016-01-20T11:32:25.585291Z 0 [Note] Shutting down plugin 'MyISAM'
2016-01-20T11:32:25.585310Z 0 [Note] Shutting down plugin 'INNODB_SYS_VIRTUAL'
2016-01-20T11:32:25.585316Z 0 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2016-01-20T11:32:25.585320Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2016-01-20T11:32:25.585325Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2016-01-20T11:32:25.585330Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2016-01-20T11:32:25.585334Z 0 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2016-01-20T11:32:25.585339Z 0 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2016-01-20T11:32:25.585343Z 0 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2016-01-20T11:32:25.585348Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2016-01-20T11:32:25.585352Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2016-01-20T11:32:25.585357Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2016-01-20T11:32:25.585361Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2016-01-20T11:32:25.585366Z 0 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2016-01-20T11:32:25.585370Z 0 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2016-01-20T11:32:25.585375Z 0 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2016-01-20T11:32:25.585380Z 0 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2016-01-20T11:32:25.585384Z 0 [Note] Shutting down plugin 'INNODB_METRICS'
2016-01-20T11:32:25.585389Z 0 [Note] Shutting down plugin 'INNODB_TEMP_TABLE_INFO'
2016-01-20T11:32:25.585394Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2016-01-20T11:32:25.585408Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2016-01-20T11:32:25.585413Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2016-01-20T11:32:25.585418Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2016-01-20T11:32:25.585422Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2016-01-20T11:32:25.585427Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2016-01-20T11:32:25.585432Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM'
2016-01-20T11:32:25.585436Z 0 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2016-01-20T11:32:25.585441Z 0 [Note] Shutting down plugin 'INNODB_CMP'
2016-01-20T11:32:25.585445Z 0 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2016-01-20T11:32:25.585450Z 0 [Note] Shutting down plugin 'INNODB_LOCKS'
2016-01-20T11:32:25.585454Z 0 [Note] Shutting down plugin 'INNODB_TRX'
2016-01-20T11:32:25.585459Z 0 [Note] Shutting down plugin 'InnoDB'
2016-01-20T11:32:25.585511Z 0 [Note] InnoDB: FTS optimize thread exiting.
2016-01-20T11:32:25.585555Z 0 [Note] InnoDB: Starting shutdown...

@csdougliss
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launchctl limit maxfiles

    maxfiles    256            unlimited

ulimit -a

core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
file size               (blocks, -f) unlimited
max locked memory       (kbytes, -l) unlimited
max memory size         (kbytes, -m) unlimited
open files                      (-n) 524288
pipe size            (512 bytes, -p) 1
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 709

I am going to try:
/Library/LaunchDaemons/limit.maxfiles.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
        "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>limit.maxfiles</string>
    <key>ProgramArguments</key>
    <array>
      <string>launchctl</string>
      <string>limit</string>
      <string>maxfiles</string>
      <string>524288</string>
      <string>524288</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>ServiceIPC</key>
    <false/>
  </dict>
</plist>

After a reboot:

launchctl limit maxfiles 
    maxfiles    524288         524288

But it still crashed:

160121 17:01:38 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2016-01-21T17:01:40.086587Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-01-21T17:01:40.086998Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
2016-01-21T17:01:40.087010Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set.
2016-01-21T17:01:40.087099Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path.
2016-01-21T17:01:40.087292Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld (mysqld 5.7.10) starting as process 502 ...
2016-01-21T17:01:40.093539Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2016-01-21T17:01:40.096970Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-01-21T17:01:40.096999Z 0 [Note] InnoDB: Uses event mutexes
2016-01-21T17:01:40.097007Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-01-21T17:01:40.097016Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-01-21T17:01:40.097653Z 0 [Note] InnoDB: Number of pools: 1
2016-01-21T17:01:40.098127Z 0 [Note] InnoDB: Using CPU crc32 instructions
2016-01-21T17:01:40.113588Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2016-01-21T17:01:40.456965Z 0 [Note] InnoDB: Completed initialization of buffer pool
2016-01-21T17:01:40.484313Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2016-01-21T17:01:40.485137Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 19971126341
2016-01-21T17:01:40.485159Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19971126350
2016-01-21T17:01:40.485315Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 19971126350
2016-01-21T17:01:40.485326Z 0 [Note] InnoDB: Database was not shutdown normally!
2016-01-21T17:01:40.485332Z 0 [Note] InnoDB: Starting crash recovery.
2016-01-21T17:01:44.409693Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2016-01-21T17:01:44.409727Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2016-01-21T17:01:44.409868Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2016-01-21T17:01:44.432983Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2016-01-21T17:01:44.434348Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2016-01-21T17:01:44.434371Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2016-01-21T17:01:44.434700Z 0 [Note] InnoDB: Waiting for purge to start
2016-01-21T17:01:44.488071Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 4029ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
2016-01-21T17:01:44.488166Z 0 [Note] InnoDB: 5.7.10 started; log sequence number 19971126350
2016-01-21T17:01:44.488703Z 0 [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
2016-01-21T17:01:44.488727Z 0 [Note] InnoDB: not started
2016-01-21T17:01:44.541293Z 0 [Note] Plugin 'FEDERATED' is disabled.
2016-01-21T17:01:45.487288Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2016-01-21T17:01:45.487314Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2016-01-21T17:01:45.572819Z 0 [Warning] CA certificate ca.pem is self signed.
2016-01-21T17:01:45.572912Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2016-01-21T17:01:45.684929Z 0 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2016-01-21T17:01:45.685662Z 0 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2016-01-21T17:01:45.685897Z 0 [Note] Server socket created on IP: '127.0.0.1'.
2016-01-21T17:01:46.196251Z 0 [Note] Event Scheduler: Loaded 0 events
2016-01-21T17:01:46.196403Z 0 [Note] /usr/local/Cellar/mysql/5.7.10/bin/mysqld: ready for connections.
Version: '5.7.10'  socket: '/tmp/mysql.sock'  port: 3306  Homebrew
2016-01-21T17:01:48.656709Z 0 [Note] InnoDB: Buffer pool(s) load completed at 160121 17:01:48
2016-01-21T17:09:34.802115Z 0 [Warning] File Descriptor 1539 exceedeed FD_SETSIZE=1024
2016-01-21T17:09:37.778012Z 0 [Warning] File Descriptor 1539 exceedeed FD_SETSIZE=1024

launchctl limit

    cpu         unlimited      unlimited      
    filesize    unlimited      unlimited      
    data        unlimited      unlimited      
    stack       8388608        67104768       
    core        0              unlimited      
    rss         unlimited      unlimited      
    memlock     unlimited      unlimited      
    maxproc     709            1064           
    maxfiles    524288         524288         
Craigs-MacBook-Pro:mysql ccarnell$ sudo launchctl limit
    cpu         unlimited      unlimited      
    filesize    unlimited      unlimited      
    data        unlimited      unlimited      
    stack       8388608        67104768       
    core        0              unlimited      
    rss         unlimited      unlimited      
    memlock     unlimited      unlimited      
    maxproc     709            1064           
    maxfiles    524288         524288

@MikeMcQuaid
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@craigcarnell Can you try using a MySQL from outside Homebrew with the same version and let us know if it has the same issues? I suspect this is a MySQL rather than Homebrew bug.

@craigfrancis
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I think this is a MySQL problem.

I've been having exactly the same issue, but fixed it by adding table_open_cache=250 to my ~/.my.cnf file.

It was crashing every 2-3 days, but has been fine for about 4 weeks now.

Previously I've tried adding <string>--open-files-limit=8192</string> to:

https://github.com/Homebrew/homebrew/blob/master/Library/Formula/mysql.rb#L173

As adding this command line flag, the ./mysqld_safe script will call ulimit for you (on line 610), then start MySQL so that it also works with the open-files-limit of 8192... but that did not work.

Two other suggestions I've seen (but did not try) were:

innodb_file_per_table = OFF
table_definition_cache = 400

@HenningCash
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I had the same issue when installing TYPO3 7.6 and adding table_open_cache = 250 fixed it for me. I did not even have to increase max_allowed_packet. Thank you @craigfrancis!

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@MikeMcQuaid @nijikon @dunn @csdougliss @craigfrancis @HenningCash @DomT4