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Re: modify-file within an added tree (r1356317) ; possibly rep-cache.db -related

From: Daniel Shahaf <d.s_at_daniel.shahaf.name>
Date: Mon, 16 Jul 2012 17:38:40 +0100

Trent Nelson wrote on Mon, Jul 16, 2012 at 08:58:09 -0700:
> Somewhat related: is this a FreeBSD box?

Yes, it's eris from http://www.apache.org/dev/machines.

> ports/sysutils/mcelog is useful for getting info on any ECC errors
> that might have occurred.

Thanks for the pointer. The port description says: "The primary purpose
is to provide a way to decode MCE output from the FreeBSD kernel into
something more human-readable" --- how to get the "raw" MCE output? I
don't see "mce" mentioned in `sysctl -a` or /var/log/messages.

> Is the repo living on ZFS?

FreeBSD 8.2, zpool v15, zfs v4

> Don't suppose you've got a non-standard vfs.zfs.txg.timeout (greater
> than 5 seconds?) set? That could have exacerbated the situation.

We have the default setting, but the default is greater than 5 seconds:

eris,0:/boot% sysctl -a | grep txg
vfs.zfs.txg.write_limit_override: 0
vfs.zfs.txg.synctime: 5
vfs.zfs.txg.timeout: 30

Is there somewhere documentation of what the txg timeout _is_ (as
opposed to what are the effects of changing the knob)? Or is the only
documentation in the source tree?



> Trent.
Received on 2012-07-16 18:39:21 CEST

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