“Error reconnecting to the database” on limited scan

  • Resolved aklymov

    (@aklymov)


    10 months, 3 weeks ago

    Hello, we re trying to run Wordfence scan on our web site – 5 subsites WPMU installation on dedicated Linux server with fair amount of content. First we’ve got the same error on normal scan, after that tried to switch to limited scan to see if it will make a difference. This got us a little bit further but still ended with

    Error reconnecting to the databaseThis means that the contact with the database server at?localhost?was lost. This could mean your host’s database server is down. Are you sure the database server is running? Are you sure the database server is not under particularly heavy load? If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the?WordPress support forums.

    There were no database server load problems or connection problems at the time.

    What steps do we need to take to be able to run normal scan on our site?

Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Support wfmargaret

    (@wfmargaret)

    Hi @aklymov,

    The database error you’re seeing is a WordPress error.  We request that you or your host check the database server logs and other logs for the website(s) on the server such as syslog, PHP error logs, etc. to see what else is going on with the server at the timestamp of these issues. I would expect the database to be unavailable temporarily, either because it is restarting or has crashed.

    Thanks,
    Margaret

    Thread Starter aklymov

    (@aklymov)

    Thank you, Margaret

    We added additional swapfile on server and that solved our problem – looks like MariaDB server was running out of available memory during scan and killed by OOM Killer.

    With added swapfile we could run limited and normal scan without problem.

    Thanks again.

Viewing 2 replies - 1 through 2 (of 2 total)
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