Date: Mon, 21 Nov 2016 18:50:43 +0100 From: Jan Bramkamp <crest@rlwinm.de> To: freebsd-stable@freebsd.org Subject: Re: Help! two machines ran out of swap and corrupted their zpools! Message-ID: <b4f47d3b-3e35-9135-f322-fbed0a4e4636@rlwinm.de> In-Reply-To: <E1c8sgj-0003Q2-It@dilbert.ingresso.co.uk> References: <E1c8sgj-0003Q2-It@dilbert.ingresso.co.uk>
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On 21/11/2016 18:47, Pete French wrote: > So, I am off sick and my colleagues decided to load test our set of five > servers excesively. All ran out of swap. So far so irritating, but whats has > happened is that twoof them now will not boot, as it appears the ZFS pool > they are booting from has become corrupted. > > One starts to boot, then crases importing the root pool. The other doenst > even get that far with gptzfsboot saying it can't find the pool to boot from! > > Now I can recover these, but I am a bit worried, that it got like this at > all, as I havent ever seen ZFS corrupt a pool like this. Anyone got any insights, > or suggstions as to how to stop it happening again ? > > We are swapping to a separate partition, not to the pool by theway. How much trust do you put in your hardware? Have you ever put the hardware under full load for extended periods before e.g. run poudriere to build pkg repos? -- Jan Bramkamp
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