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Updated the Ubuntu upstart jobs for glusterd in extras/Ubuntu.

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Using upstart jobs, instead of an initscript, solves Bug 765014.
See also: https://bugs.launchpad.net/ubuntu/+source/glusterfs/+bug/876648

The new upstart jobs split the work of starting glusterd & mounting glusterfs volumes into two parts: a glusterd service runner and a glusterfs volume moung blocker which waits for the service runner.

This is the method preferred by Ubuntu developers to block a mounting event until a required service is available.  These changes will be included in the Ubuntu glusterfs-server package starting with release 12.04, Precise Pangolin.

Tested on Ubuntu 12.04

Change-Id: I9bb4e8cb05a1da0997c23f2ef7fea8737f6a2eb9
BUG: 765014
Signed-off-by: Louis Zuckerman <louiszuckerman@gmail.com>
Reviewed-on: http://review.gluster.com/2727
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
This commit is contained in:
Louis Zuckerman 2012-02-07 11:16:10 -05:00 committed by Anand Avati
parent 598ab12c30
commit c3bbf6aa6c
3 changed files with 28 additions and 24 deletions
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28
extras/Ubuntu/README.Ubuntu
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@ -1,20 +1,24 @@
Bug 3282 - Mounting from localhost in fstab fails at boot on ubuntu
(http://bugs.gluster.com/show_bug.cgi?id=3282)
Bug 765014 - Mounting from localhost in fstab fails at boot on ubuntu
(https://bugzilla.redhat.com/show_bug.cgi?id=765014)
(https://bugs.launchpad.net/ubuntu/+source/glusterfs/+bug/876648)
Ubuntu uses upstart instead of init to bootstrap the system and it has a unique
way of handling fstab, using a program called mountall(8). As a result,
glusterfs mounts in fstab are tried before the glusterd service is running. In
the case where the client is also a server and the volume is mounted from
localhost, the mount fails at boot time. An upstart job for glusterd is needed
to correct this.
way of handling fstab, using a program called mountall(8). As a result of using
a debian initscript to start glusterd, glusterfs mounts in fstab are tried before
the glusterd service is running. In the case where the client is also a server
and the volume is mounted from localhost, the mount fails at boot time. To
correct this we need to launch glusterd using upstart and block the glusterfs
mounting event until glusterd is started.
The glusterd.conf file contains the necessary configuration for upstart to
manage the glusterd service. It should be placed in /etc/init/glusterd.conf
on Ubuntu systems, and then the old initscript /etc/init.d/glusterd can be
removed.
removed. An additional upstart job, mounting-glusterfs.conf, is also required
to block mounting glusterfs volumes until the glusterd service is available.
Both of these upstart jobs need to be placed in /etc/init to resolve the issue.
It can also be added to Ubuntu deb packages by placing it in debian/upstart
inside the source package (or debian/glusterd.upstart if the source package
builds multiple binary packages.)
Starting with Ubuntu 12.04, Precise Pangolin, these upstart jobs will be
included with the glusterfs-server package in the Ubuntu repository.
This affects all versions of glusterfs on the ubuntu platform.
This affects all versions of glusterfs on the Ubuntu platform since at least
10.04, Lucid Lynx.

17
extras/Ubuntu/glusterd.conf
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# glusterd service upstart job
#
# Author: Louis Zuckerman <me@louiszuckerman.com>
author "Louis Zuckerman <me@louiszuckerman.com>"
description "GlusterFS Management Daemon"
description "GlusterFS Management Daemon"
start on (local-filesystems and net-device-up IFACE=lo and net-device-up IFACE=eth0) or (mounting TYPE=glusterfs)
start on runlevel [2345]
stop on runlevel [016]
respawn
expect fork
exec /usr/sbin/glusterd -N -p /var/run/glusterd.pid
post-start script
sleep 1
end script
exec /usr/sbin/glusterd -p /var/run/glusterd.pid

7
extras/Ubuntu/mounting-glusterfs.conf Normal file
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author "Louis Zuckerman <me@louiszuckerman.com>"
description "Block the mounting event for glusterfs filesystems until glusterd is running"
start on mounting TYPE=glusterfs
task
exec start wait-for-state WAIT_FOR=glusterd WAITER=mounting-glusterfs