5 Jul 2014 berend   » (Journeyer)

An update on the Linux NFS server problems I had: massively high i/o by process jbd2/xvda1-8.

The initial fix I settled on was perhaps a file system corruption issue. That didn't work actually, even though initially it looked like it did.

Then I thought it maybe a Linux kernel. But even that didn't permanently fix it.

Issue just appeared again: added one more php5-fpm server to the mix, an identical copy of another one, and bang problem came back.

My latest solution: I was using an lvm2 stripe, switched to an md stripe. Seems to work so far.

Update: didn't work, see http://www.advogato.org/person/berend/diary/401.html

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