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*** SERVER ISSUES *** - we are currently experiencing a heavy load on the server

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saint:
Some additional info for consideration. In addition to the forum (relying on mysql) exhibiting slowness, I also run Squirrel mail (no reliance on mysql) on the server.

When the forum is slow, access to squirrel mail is slow. This makes me think it's not a mysql problem, or better said, not just a mysql problem, but rather whatever the problem is is also bogging down the server, as the iotop shows.

OK, killing the server now to get some non-mysql/web-server iotops for comparison.

saint:
Additional observations:

Mysql takes a long time to stop or to restart. Minutes.

When mysql is down but the web server is running, Squirrel mail runs fast and snappy, no lag whatsoever.

Once I restart sql, it takes a good 10-15 minutes or so before the forum can connect to the sql server

saint:
iotop snapshots when mysql was stopped but everything else was still running:

saint:
A couple more from when mysql was stopped:

pbj:
But do you need money?  Apparently your users are gagging to give you money.  Please tell them you need money.

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