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Error in MySQL upgrade from 5.6 to 5.7

Discussion in 'Database Discussion' started by aries, Feb 22, 2019.

  1. aries

    aries Registered

    Sep 6, 2017
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    I tried to upgrade from mysql 5.6 to mysql 5.7 per a recommendation. It failed. When trying to start it, the error logs give me this:
    2019-02-23T02:38:10.687444Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
    2019-02-23T02:38:10.687879Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.25) starting as process 9550 ...
    2019-02-23T02:38:10.699726Z 0 [Warning] InnoDB: Using innodb_support_xa is deprecated and the parameter may be removed in future releases. Only innodb_support_xa=ON is allowed.
    2019-02-23T02:38:10.699834Z 0 [Note] InnoDB: PUNCH HOLE support available
    2019-02-23T02:38:10.699882Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
    2019-02-23T02:38:10.699894Z 0 [Note] InnoDB: Uses event mutexes
    2019-02-23T02:38:10.699904Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
    2019-02-23T02:38:10.699918Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
    2019-02-23T02:38:10.699942Z 0 [Note] InnoDB: Using Linux native AIO
    2019-02-23T02:38:10.700499Z 0 [Note] InnoDB: Number of pools: 1
    2019-02-23T02:38:10.700793Z 0 [Note] InnoDB: Using CPU crc32 instructions
    2019-02-23T02:38:10.704355Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
    2019-02-23T02:38:10.721659Z 0 [Note] InnoDB: Completed initialization of buffer pool
    2019-02-23T02:38:10.727002Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
    2019-02-23T02:38:10.743571Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
    2019-02-23T02:38:10.743731Z 0 [ERROR] InnoDB: Operating system error number 40 in a file operation.
    2019-02-23T02:38:10.743763Z 0 [ERROR] InnoDB: Error number 40 means 'Too many levels of symbolic links'
    2019-02-23T02:38:10.743776Z 0 [Note] InnoDB: Some operating system error numbers are described at
    2019-02-23T02:38:10.743794Z 0 [ERROR] InnoDB: File .//mysql.sock: 'stat' returned OS error 140.
    2019-02-23T02:38:10.743821Z 0 [ERROR] InnoDB: os_file_readdir_next_file() returned -1 in directory ./, crash recovery may have failed for some .ibd files!
    2019-02-23T02:38:10.743896Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
    2019-02-23T02:38:11.344488Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
    2019-02-23T02:38:11.344571Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
    2019-02-23T02:38:11.344600Z 0 [ERROR] Failed to initialize builtin plugins.
    2019-02-23T02:38:11.344609Z 0 [ERROR] Aborting
    2019-02-23T02:38:11.344624Z 0 [Note] Binlog end
    2019-02-23T02:38:11.345357Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
    How do I fix this and restore the mysql service?
    #1 aries, Feb 22, 2019
    Last edited by a moderator: Feb 25, 2019
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

    Apr 11, 2011
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    Hello @aries,

    Can you share the contents of the /etc/my.cnf file on this system? EX:

    cat /etc/my.cnf
    Also, can you confirm if you've made any changes to the MySQL data directory storage location or storage type on this system? If you're unsure, please post the output from the following commands:

    stat /var/lib/mysql
    mount|grep mysql
    Thank you.
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