Date: Wed, 10 Oct 2012 07:32:17 -0700 From: Dennis Glatting <freebsd@pki2.com> To: Robert Schulze <rs@bytecamp.net> Cc: freebsd-fs@freebsd.org Subject: Re: NFS not responding+panic on full quota'd ZFS Message-ID: <1349879537.58237.4.camel@btw.pki2.com> In-Reply-To: <5075323E.1040009@bytecamp.net> References: <5075323E.1040009@bytecamp.net>
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On Wed, 2012-10-10 at 10:30 +0200, Robert Schulze wrote: > Hi, > > we are running several webservers on 8.1-RELEASE-p12 which deliver their > data from NFS. Ever since we began using ZFS on the fileserver, we > always had to track quota usage, because of the annoying "nfs server not > responding" error: when a exported filesystem was full and got write > access (including unlink), the server just stopped serving. > > As of this night, things became more complicated. Webservers either > crashed in sync with a "sleepable thread owns a non-sleepable lock" > panic or after the following: > > nfs server 10.0.0.XX:/home/www/XX/YY: not responding > nfs_getpages: error -484759920 > vm_fault: pager read error, pid 9467 (php-cgi) > > The not responding filesystem was nearly out of quota. > > Does anybody know, if these issues with quota'd nfs-exported zfs are > fixed in 8.3? > Similar problem, maybe. Does the network still work (ping, etc)? Can you login and run commands? Are you running top in another window? If so, what does it say? I have four ZFS servers (similar, not exact), NFS clients (little activity), that hang under heavy local disk and computational load where the processes are stuck in tx->tx (al la top). A reboot is necessary. I gathered equipment for more round of trying to extract debug information but it is looking like I am going to have to strip ZFS, if not FreeBSD, from a production environment. > with kind regards, > Robert Schulze > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
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