Re: osd become unusable, blocked by xfsaild (?) and load > 5000

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Hi Tom,

2015-12-08 10:34 GMT+01:00 Tom Christensen <pavera@xxxxxxxxx>:

> We didn't go forward to 4.2 as its a large production cluster, and we just
> needed the problem fixed.  We'll probably test out 4.2 in the next couple

unfortunately we don't have the luxury of a test cluster.
and to add to that, we couldnt simulate the load, altough it does not
seem to be load related.
Did you try running with nodeep-scrub as a short-term workaround?

I'll give ~30% of the nodes 4.2 and see how it goes.

> In our experience it takes about 2 weeks to start happening

we're well below that. Somewhat between 1 and 4 days.
And yes, once one goes south, it affects the rest of the cluster.

Thx!

 Benedikt
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