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Prevent double-starting client on RHEL7

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On RHEL7 if the AFS client is stopped with 'service openafs-client
stop', but that fails for some reason (most commonly because some
process has a file or directory in AFS open) systemd will decide that
the openafs-client is in a failed state when it is actually running.
If one then runs 'service openafs-client start' systemd will start a
new AFS client.  At this point AFS access will continue to work until
the functional AFS client is (successfully) stopped, at which point a
reboot is required to recover.

Have systemd check the status of 'fs sysname' before starting the
AFS client, so we avoid getting into a state that requires a reboot.

Reviewed-on: https://gerrit.openafs.org/12443
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
(cherry picked from commit c666bfee8848183ccbc566c9e0fa019088e56505)

Change-Id: I2e7bf69ec5d1ae344d38b86fc3caace25b2da135
Reviewed-on: https://gerrit.openafs.org/12587
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
This commit is contained in:
Jonathon Weiss 2016-11-10 17:06:18 -05:00 committed by Stephan Wiesand
parent 24a04be1ab
commit 3b5e0cee5b
1 changed files with 1 additions and 0 deletions
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src/packaging/RedHat/openafs-client.service
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@ -8,6 +8,7 @@ Before=remote-fs.target
Type=forking
RemainAfterExit=true
EnvironmentFile=/etc/sysconfig/openafs
ExecStartPre=/bin/bash -c "fs sysname > /dev/null 2>/dev/null; test $? -ne 0 || (echo AFS client appears to be running -- not starting && exit 1)"
ExecStartPre=/bin/sed -n 'w/usr/vice/etc/CellServDB' /usr/vice/etc/CellServDB.local /usr/vice/etc/CellServDB.dist
ExecStartPre=/bin/chmod 0644 /usr/vice/etc/CellServDB
ExecStartPre=/sbin/modprobe openafs