Date: Mon, 26 Apr 2004 13:37:17 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Tillman Hodgson <tillman@seekingfire.com> Cc: FreeBSD-Questions <freebsd-questions@freebsd.org> Subject: Re: NFS occassionally gives "permission" denied in the middle of a large transfer Message-ID: <20040426183717.GF2771@dan.emsphone.com> In-Reply-To: <20040426182547.GF92049@seekingfire.com> References: <20040426182547.GF92049@seekingfire.com>
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In the last episode (Apr 26), Tillman Hodgson said: > However, this has been failing sporadically with messages like: > > <snip> > DUMP: 50.71% done, finished in 1:03 > DUMP: 53.06% done, finished in 1:01 > DUMP: 54.72% done, finished in 1:02 > gzip: stdout: Permission denied > DUMP: Broken pipe > DUMP: The ENTIRE dump is aborted. > > I've confirmed that the scripts work correctly when run by hand (and > most of the time when run from cron), that I'm not running out of > disk space, and that I'm not running out of network I/O (Athena is > Gigabit on the switch, all the other machines are 100Mbit). There > shouldn't be any concurrent access (nothing else uses this > filesystem, and each host gets it's own diretory tree) so locking > shouldn't be an issue. The only time I've seen incorrect permission denied messages is when mountd is refreshing the exports list. It's not atomic, so there's a small window where the old exports have been deleted but the new ones aren't in place yet. -- Dan Nelson dnelson@allantgroup.com
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