Disk write while site was down

May 13, 2015 1.5k views
Apache WordPress Arch Linux

My site crashed several times yesterday - including a 6 hour period in the middle of the night. It came back up itself at the end of the period. During that time there was a huge spike on my Disk graph. There was no spike during the other downtime periods and that spike is not a usual occurrence.

Any ideas what could be causing this?

I'm running WP on a 1GB server.

  • You need to check the server logs.. May be due to some faulty plug in, the server is running out of RAM..

    Do you have any Swap enabled ??

  • I have swap enabled. I added in a new plugin yesterday which runs fine on another DO WP site on a seperate disk. I did deactivate it this morning but still having issues.

    I'm going to check my server logs

  • I have a whole page full of the top error:

    [Wed May 13 11:25:31.235497 2015] [core:error] [pid 980] AH00046: child process 1434 still did not exit, sending a SIGKILL
    [Wed May 13 11:25:32.241818 2015] [mpm_prefork:notice] [pid 980] AH00169: caught SIGTERM, shutting down
    PHP Warning: Module 'newrelic' already loaded in Unknown on line 0
    [Wed May 13 11:25:32.844456 2015] [mpm_prefork:notice] [pid 2545] AH00163: Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.9 configured -- resuming normal operations
    [Wed May 13 11:25:32.844533 2015] [core:notice] [pid 2545] AH00094: Command line: '/usr/sbin/apache2'
    [Wed May 13 11:26:20.915245 2015] [mpm_prefork:error] [pid 2545] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting

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