MySQL server erroring - mysql

I've a MySQL server which I'm writing to about every 10 minutes. It seems to work fine then when I go back to it a few hours later it has crashed.
From error.log I have
2017-01-17T13:47:35.315801Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-01-17T13:47:35.315905Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-01-17T13:47:35.495187Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp serv$
2017-01-17T13:47:35.497022Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.16-0ubuntu0.16.04.1) starting as process 18742 ...
2017-01-17T13:47:35.505459Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-01-17T13:47:35.505530Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-01-17T13:47:35.505541Z 0 [Note] InnoDB: Uses event mutexes
2017-01-17T13:47:35.505549Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-01-17T13:47:35.505558Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-01-17T13:47:35.505566Z 0 [Note] InnoDB: Using Linux native AIO
2017-01-17T13:47:35.506116Z 0 [Note] InnoDB: Number of pools: 1
2017-01-17T13:47:35.506338Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-01-17T13:47:35.508891Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-01-17T13:47:35.508951Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12
2017-01-17T13:47:35.508973Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-01-17T13:47:35.508983Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-01-17T13:47:35.508994Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-01-17T13:47:35.509002Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-01-17T13:47:35.509011Z 0 [ERROR] Failed to initialize plugins.
2017-01-17T13:47:35.509017Z 0 [ERROR] Aborting
2017-01-17T13:47:35.509026Z 0 [Note] Binlog end
2017-01-17T13:47:35.509098Z 0 [Note] Shutting down plugin 'CSV'
2017-01-17T13:47:35.509118Z 0 [Note] Shutting down plugin 'MyISAM'
2017-01-17T13:47:35.509507Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
This is a database I'm running from Python/Django, not that I think that should make any difference. I do not know what is going wrong but if I reboot the server it starts up and works fine. Could you help please.

I increased the size of the server and it has been working fine. I'll live with it

Related

How to fix MySQL not running on AWS Bitnami Wordpress problem?

I had disk storage issue on my AWS EC2 instance. To solve this problem, I wanted to increase the volume in my EC2 instance. To do so, I had to stop my instance. When I start it again, MySQL was not going back to live.
What I assume is that either I had lost some certain files or the settings has been changed after I stopped the instance. But I could not figure that out from the log file.
2019-04-15T17:47:01.859462Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-04-15T17:47:01.859482Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC
atomic builtins
2019-04-15T17:47:01.859486Z 0 [Note] InnoDB: Uses event mutexes
2019-04-15T17:47:01.859490Z 0 [Note] InnoDB: GCC builtin
__sync_synchronize() is used for memory barrier
2019-04-15T17:47:01.859494Z 0 [Note] InnoDB: Compressed tables use zlib
1.2.3
2019-04-15T17:47:01.859498Z 0 [Note] InnoDB: Using Linux native AIO
2019-04-15T17:47:01.859718Z 0 [Note] InnoDB: Number of pools: 1
2019-04-15T17:47:01.859805Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-04-15T17:47:01.861207Z 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2019-04-15T17:47:01.862285Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-04-15T17:47:01.862812Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-04-15T17:47:01.874471Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-04-15T17:47:01.884703Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-04-15T17:47:01.884767Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-04-15T17:47:01.891352Z 0 [Warning] InnoDB: 1048576 bytes should have been written. Only 458752 bytes written. Retrying for the remaining bytes.
2019-04-15T17:47:01.891379Z 0 [Warning] InnoDB: Retry attempts for writing partial data failed.
2019-04-15T17:47:01.891391Z 0 [ERROR] 2019-04-15T17:47:02.494222Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2019-04-15T17:47:02.494267Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2019-04-15T17:47:02.494273Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2019-04-15T17:47:02.494279Z 0 [ERROR] Failed to initialize builtin plugins.
2019-04-15T17:47:02.494282Z 0 [ERROR] Aborting
2019-04-15T17:47:02.494287Z 0 [Note] Binlog end
2019-04-15T17:47:02.494324Z 0 [Note] Shutting down plugin 'MyISAM'
2019-04-15T17:47:02.494338Z 0 [Note] Shutting down plugin 'CSV'
2019-04-15T17:47:02.494542Z 0 [Note] /opt/bitnami/mysql/bin/mysqld.bin: Shutdown complete

LINUX MINT mysql

ERROR LINUX MINT MYSQL
Can You explain what happened?
I can't start in xampp
What configuration should I change ?
I already change /var/lib/mysql/ to chmod 777
2019-02-27T16:35:55.748379Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2019-02-27T16:35:55.748447Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2019-02-27T16:35:55.919606Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-02-27T16:35:55.921605Z 0 [Note] mysqld (mysqld 5.7.25-0ubuntu0.18.04.2) starting as process 16788 ...
2019-02-27T16:35:55.926137Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-02-27T16:35:55.926173Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-02-27T16:35:55.926182Z 0 [Note] InnoDB: Uses event mutexes
2019-02-27T16:35:55.926190Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2019-02-27T16:35:55.926198Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-02-27T16:35:55.926206Z 0 [Note] InnoDB: Using Linux native AIO
2019-02-27T16:35:55.926511Z 0 [Note] InnoDB: Number of pools: 1
2019-02-27T16:35:55.926644Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-02-27T16:35:55.928888Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-02-27T16:35:55.945234Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-02-27T16:35:55.948312Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-02-27T16:35:55.958383Z 0 [ERROR] InnoDB: The innodb_system data file 'ibdata1' must be writable
2019-02-27T16:35:55.958517Z 0 [ERROR] InnoDB: The innodb_system data file 'ibdata1' must be writable
2019-02-27T16:35:55.958539Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2019-02-27T16:35:56.559302Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2019-02-27T16:35:56.559365Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2019-02-27T16:35:56.559381Z 0 [ERROR] Failed to initialize builtin plugins.
2019-02-27T16:35:56.559404Z 0 [ERROR] Aborting
2019-02-27T16:35:56.559441Z 0 [Note] Binlog end
2019-02-27T16:35:56.559583Z 0 [Note] Shutting down plugin 'CSV'
2019-02-27T16:35:56.560410Z 0 [Note] mysqld: Shutdown complete
You must check rights on your filesystem :
The innodb_system data file 'ibdata1' must be writable
The folder containing ibdata1 seems to not be writable by mysql user.
I have the same problem and the file ibdata1 is indeed writable -rw-rw--w-.
The full path of this file is at /usr/local/var/mysql/ibdata1.
But it doen't help if I make the file writable by all -- I get the same error.
Stumbled upon an answer by remove *.err and it did it for me! Hope it helps you.

MAMP Pro MySQL Won't Start

I have tried everything from every forum, still no love. Deleted temp files, even a totally clean re-install.
Even created a new user on my Mac.... same issue.
Here's the MySQL log file:
2018-12-15T09:47:47.6NZ mysqld_safe Logging to '/Applications/MAMP/logs/mysql_error.log'.
2018-12-15T09:47:47.6NZ mysqld_safe Starting mysqld daemon with databases from /Library/Application Support/appsolute/MAMP PRO/db/mysql57
2018-12-15T09:47:48.230415Z 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.
2018-12-15T09:47:48.232313Z 0 [Note] /Applications/MAMP/Library/bin/mysqld (mysqld 5.7.23) starting as process 3631 ...
2018-12-15T09:47:48.249599Z 0 [Warning] Setting lower_case_table_names=2 because file system for /Library/Application Support/appsolute/MAMP PRO/db/mysql57/ is case insensitive
2018-12-15T09:47:48.266106Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-12-15T09:47:48.266181Z 0 [Note] InnoDB: Uses event mutexes
2018-12-15T09:47:48.266203Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2018-12-15T09:47:48.266221Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-12-15T09:47:48.266277Z 0 [Note] InnoDB: Adjusting innodb_buffer_pool_instances from 8 to 1 since innodb_buffer_pool_size is less than 1024 MiB
2018-12-15T09:47:48.269905Z 0 [Note] InnoDB: Number of pools: 1
2018-12-15T09:47:48.273776Z 0 [Note] InnoDB: Using CPU crc32 instructions
2018-12-15T09:47:48.279178Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2018-12-15T09:47:48.301106Z 0 [Note] InnoDB: Completed initialization of buffer pool
2018-12-15T09:47:48.335445Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2018-12-15T09:47:48.339844Z 0 [ERROR] InnoDB: Ignoring the redo log due to missing MLOG_CHECKPOINT between the checkpoint 72309002 and the end 72308736.
2018-12-15T09:47:48.339913Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2018-12-15T09:47:48.642547Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2018-12-15T09:47:48.642595Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-12-15T09:47:48.642616Z 0 [ERROR] Failed to initialize builtin plugins.
2018-12-15T09:47:48.642631Z 0 [ERROR] Aborting
2018-12-15T09:47:48.643113Z 0 [Note] Binlog end
2018-12-15T09:47:48.644288Z 0 [Note] Shutting down plugin 'CSV'
2018-12-15T09:47:48.645917Z 0 [Note] /Applications/MAMP/Library/bin/mysqld: Shutdown complete
2018-12-15T09:47:48.6NZ mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
2018-12-15T09:58:04.6NZ mysqld_safe Logging to '/Applications/MAMP/logs/mysql_error.log'.
2018-12-15T09:58:04.6NZ mysqld_safe Starting mysqld daemon with databases from /Library/Application Support/appsolute/MAMP PRO/db/mysql57
2018-12-15T09:58:05.259005Z 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.
2018-12-15T09:58:05.261261Z 0 [Note] /Applications/MAMP/Library/bin/mysqld (mysqld 5.7.23) starting as process 4301 ...
2018-12-15T09:58:05.280531Z 0 [Warning] Setting lower_case_table_names=2 because file system for /Library/Application Support/appsolute/MAMP PRO/db/mysql57/ is case insensitive
2018-12-15T09:58:05.298055Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-12-15T09:58:05.298134Z 0 [Note] InnoDB: Uses event mutexes
2018-12-15T09:58:05.298163Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2018-12-15T09:58:05.298189Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-12-15T09:58:05.298249Z 0 [Note] InnoDB: Adjusting innodb_buffer_pool_instances from 8 to 1 since innodb_buffer_pool_size is less than 1024 MiB
2018-12-15T09:58:05.301851Z 0 [Note] InnoDB: Number of pools: 1
2018-12-15T09:58:05.306424Z 0 [Note] InnoDB: Using CPU crc32 instructions
2018-12-15T09:58:05.310212Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2018-12-15T09:58:05.334016Z 0 [Note] InnoDB: Completed initialization of buffer pool
2018-12-15T09:58:05.390575Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2018-12-15T09:58:05.395800Z 0 [ERROR] InnoDB: Ignoring the redo log due to missing MLOG_CHECKPOINT between the checkpoint 72309002 and the end 72308736.
2018-12-15T09:58:05.395949Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2018-12-15T09:58:05.706951Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2018-12-15T09:58:05.707019Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-12-15T09:58:05.707057Z 0 [ERROR] Failed to initialize builtin plugins.
2018-12-15T09:58:05.707106Z 0 [ERROR] Aborting
2018-12-15T09:58:05.707807Z 0 [Note] Binlog end
2018-12-15T09:58:05.709523Z 0 [Note] Shutting down plugin 'CSV'
2018-12-15T09:58:05.711283Z 0 [Note] /Applications/MAMP/Library/bin/mysqld: Shutdown complete
2018-12-15T09:58:05.6NZ mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
sudo killall -9 mysqld
Run the code in terminal and restart MAMP server.

mysql 5.7.18 failed to start on Windows 10

I did look up the web for a solution such as this very relevant post on SO, to no avail.
Here is the steps that I installed mysql for win 10 and attempts to start it:
downloaded mysql 5.7.18 zip file and unzip it into my app folder;
open "cmd" as admin and run "mysqld --install", it shows "Service successfully installed."
run "net start mysql", it shows:
The MySQL service is starting.
The MySQL service could not be started.
The service did not report an error.
More help is available by typing NET HELPMSG 3534.
Run "mysqld.exe --console", it chunked out lines of messages like below:
2017-07-16T14:55:49.066437Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-07-16T14:55:49.077216Z 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled
2017-07-16T14:55:49.081191Z 0 [Note] mysqld.exe (mysqld 5.7.18) starting as process 15872 ...
2017-07-16T14:55:50.167310Z 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2017-07-16T14:55:50.167310Z 0 [Note] InnoDB: Uses event mutexes
2017-07-16T14:55:50.168434Z 0 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2017-07-16T14:55:50.169398Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2017-07-16T14:55:50.195084Z 0 [Note] InnoDB: Number of pools: 1
2017-07-16T14:55:50.249204Z 0 [Note] InnoDB: Not using CPU crc32 instructions
2017-07-16T14:55:50.290217Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-07-16T14:55:50.296068Z 0 [Note] InnoDB: Completed initialization of buffer pool
2017-07-16T14:55:50.453825Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2017-07-16T14:55:50.813667Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2017-07-16T14:55:50.815630Z 0 [Note] InnoDB: Setting file '.\ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2017-07-16T14:55:51.040444Z 0 [Note] InnoDB: File '.\ibtmp1' size is now 12 MB.
2017-07-16T14:55:51.062121Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2017-07-16T14:55:51.062590Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2017-07-16T14:55:51.068603Z 0 [Note] InnoDB: Waiting for purge to start
2017-07-16T14:55:51.128491Z 0 [Note] InnoDB: 5.7.18 started; log sequence number 1210018
2017-07-16T14:55:51.132269Z 0 [Note] InnoDB: Loading buffer pool(s) from C:\Users\jonat\opt\mysql-5.7.18-winx64\data\ib_buffer_pool
2017-07-16T14:55:51.133249Z 0 [Note] Plugin 'FEDERATED' is disabled.
mysqld: Table 'mysql.plugin' doesn't exist
2017-07-16T14:55:51.165071Z 0 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
2017-07-16T14:55:51.233060Z 0 [Note] InnoDB: Buffer pool(s) load completed at 170716 10:55:51
2017-07-16T14:55:51.251567Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2017-07-16T14:55:51.267669Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2017-07-16T14:55:51.272001Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2017-07-16T14:55:51.274922Z 0 [Note] IPv6 is available.
2017-07-16T14:55:51.278873Z 0 [Note] - '::' resolves to '::';
2017-07-16T14:55:51.281791Z 0 [Note] Server socket created on IP: '::'.
2017-07-16T14:55:51.308759Z 0 [Warning] Failed to open optimizer cost constant tables
2017-07-16T14:55:51.310583Z 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2017-07-16T14:55:51.311554Z 0 [ERROR] Aborting
2017-07-16T14:55:51.312531Z 0 [Note] Binlog end
2017-07-16T14:55:51.314481Z 0 [Note] Shutting down plugin 'ngram'
2017-07-16T14:55:51.314481Z 0 [Note] Shutting down plugin 'partition'
2017-07-16T14:55:51.314481Z 0 [Note] Shutting down plugin 'BLACKHOLE'
2017-07-16T14:55:51.315463Z 0 [Note] Shutting down plugin 'ARCHIVE'
2017-07-16T14:55:51.315463Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2017-07-16T14:55:51.316444Z 0 [Note] Shutting down plugin 'MRG_MYISAM'
2017-07-16T14:55:51.319389Z 0 [Note] Shutting down plugin 'MyISAM'
....
2017-07-16T14:55:52.615409Z 0 [Note] Shutting down plugin 'binlog'
2017-07-16T14:55:52.618322Z 0 [Note] mysqld.exe: Shutdown complete
In MySQL installation root folder (suppose it is c:\mysql), create a text file, say mypass.txt and copy this line to it:
ALTER USER 'root'#'localhost' IDENTIFIED BY '<yourpassword>';
The run
mysqld --initialize
mysqld --init-file=c:/mysql/mypass.txt
And if you want to run MySQL as a Windows Service:
mysqld --install MySQLXY --defaults-file="c:/mysql/my.ini"

PHPMyadmin Error: #2002 - No such file or directory<br />The server is not responding

I have phpMyAdmin installed on Ubuntu 16.04 Lamp Server on an Oracle VM. When I try to enter phpMyAdmin via http://localhost/phpmyadmin, I receive the following error:
Error: #2002 - No such file or directoryThe server is not responding
After reading previous threads, I have tried to unsuccessfully reinstall mysql-server to no avail. The MySQL error log in /var/log/... contains the following:
2017-01-22T16:18:06.214161Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-01-22T16:18:06.214326Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-01-22T16:18:06.536519Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-01-22T16:18:06.543467Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.17-0ubuntu0.16.04.1) starting as process 3647 ...
2017-01-22T16:18:06.571026Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-01-22T16:18:06.571095Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-01-22T16:18:06.571106Z 0 [Note] InnoDB: Uses event mutexes
2017-01-22T16:18:06.571120Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-01-22T16:18:06.571130Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-01-22T16:18:06.571139Z 0 [Note] InnoDB: Using Linux native AIO
2017-01-22T16:18:06.571731Z 0 [Note] InnoDB: Number of pools: 1
2017-01-22T16:18:06.571975Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-01-22T16:18:06.577202Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-01-22T16:18:06.625715Z 0 [Note] InnoDB: Completed initialization of buffer pool
2017-01-22T16:18:06.631873Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2017-01-22T16:18:06.647876Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2017-01-22T16:18:06.736500Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2017-01-22T16:18:06.736633Z 0 [Note] InnoDB: Setting file \'./ibtmp1\' size to 12 MB. Physically writing the file full; Please wait ...
2017-01-22T16:18:07.143892Z 0 [Note] InnoDB: File \'./ibtmp1\' size is now 12 MB.
2017-01-22T16:18:07.145163Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2017-01-22T16:18:07.145188Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2017-01-22T16:18:07.150769Z 0 [Note] InnoDB: Waiting for purge to start
2017-01-22T16:18:07.201406Z 0 [Note] InnoDB: 5.7.17 started; log sequence number 16765716
2017-01-22T16:18:07.207484Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2017-01-22T16:18:07.208190Z 0 [Note] InnoDB: Buffer pool(s) load completed at 170122 17:18:07
2017-01-22T16:18:07.208412Z 0 [Note] Plugin \'FEDERATED\' is disabled.
2017-01-22T16:18:07.229256Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2017-01-22T16:18:07.229286Z 0 [Note] Server hostname (bind-address): \'127.0.0.1\'; port: 3306
2017-01-22T16:18:07.229302Z 0 [Note] - \'127.0.0.1\' resolves to \'127.0.0.1\';
2017-01-22T16:18:07.229351Z 0 [Note] Server socket created on IP: \'127.0.0.1\'.
2017-01-22T16:18:07.230207Z 0 [ERROR] Fatal error: Can\'t open and lock privilege tables: Incorrect file format \'user\'
2017-01-22T16:18:07.230287Z 0 [ERROR] Aborting
');
I have tried to apply various solutions including this - MySQL Fatal error: Can't open and lock privilege tables: Incorrect file format 'user'
Unfortunately, I am not able to access Mysql and therefore unable to follow the solution. $ sudo mysqld --skip-grant-tables does not allow me to access it.