Date: Sat, 23 Feb 2013 21:51:03 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Mikolaj Golub <trociny@FreeBSD.org> Cc: Chad M Stewart <cms@balius.com>, freebsd-questions@freebsd.org Subject: Re: HAST - detect failure and restore avoiding an outage? Message-ID: <20130223205103.GN1377@garage.freebsd.pl> In-Reply-To: <20130221220042.GA2900@gmail.com> References: <E3C8C9A2-712E-4925-995A-0471CCD3515B@balius.com> <20130221220042.GA2900@gmail.com>
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--jh06fhy6YTawvwPV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 22, 2013 at 12:00:43AM +0200, Mikolaj Golub wrote: > It looks currently logs are only way to detect errors from hastd side. > Here is a patch that adds local i/o error statistics, accessable avia > hastctl: >=20 > http://people.freebsd.org/~trociny/hast.stat_error.1.patch >=20 > hastctl output: >=20 > role: secondary > provname: test > localpath: /dev/md102 > extentsize: 2097152 (2.0MB) > keepdirty: 0 > remoteaddr: kopusha:7771 > replication: memsync > status: complete > dirty: 0 (0B) > statistics: > reads: 0 > writes: 366 > deletes: 0 > flushes: 0 > activemap updates: 0 > local i/o errors: 269 >=20 > Pawel, what do you think about this patch? I'm fine with the patchi except for missing breaks in switch added to hastd/primary.c. I'm also wondering... You count all those errors separately just to print them as one number. If we do that already let's print them separately, eg. local i/o errors: read(0), write(3), delete(5), flush(9) BTW. Why not to count activemap update errors as write and flush errors? --=20 Pawel Jakub Dawidek http://www.wheelsystems.com FreeBSD committer http://www.FreeBSD.org Am I Evil? Yes, I Am! http://tupytaj.pl --jh06fhy6YTawvwPV Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlEpK7cACgkQForvXbEpPzRiWwCfadfw1ncKUdyvM7J/6ObjAbJO FYgAoItNIzmXP3U0FRWi0ynG+hSEijKI =sw5K -----END PGP SIGNATURE----- --jh06fhy6YTawvwPV--
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