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-   -   rgmanager: add nfsdrestart option as last resource to umount fs (http://www.linux-archive.org/cluster-development/667449-rgmanager-add-nfsdrestart-option-last-resource-umount-fs.html)

"Fabio M. Di Nitto" 05-16-2012 01:36 PM

rgmanager: add nfsdrestart option as last resource to umount fs
 
From: "Fabio M. Di Nitto" <fdinitto@redhat.com>

Resolves: rhbz#822053

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
---
rgmanager/src/resources/fs.sh.in | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/rgmanager/src/resources/fs.sh.in b/rgmanager/src/resources/fs.sh.in
index c43c177..404fe01 100644
--- a/rgmanager/src/resources/fs.sh.in
+++ b/rgmanager/src/resources/fs.sh.in
@@ -135,6 +135,18 @@ do_metadata()
<content type="boolean"/>
</parameter>

+ <parameter name="nfsrestart" inherit="nfsrestart">
+ <longdesc lang="en">
+ If set and unmounting the file system fails, the node will
+ try to restart nfs daemon and nfs lockd to drop all filesystem
+ references. Use this option as last resource.
+ </longdesc>
+ <shortdesc lang="en">
+ Enable NFS daemon and lockd workaround
+ </shortdesc>
+ <content type="boolean"/>
+ </parameter>
+
<parameter name="fsid">
<longdesc lang="en">
File system ID for NFS exports. This can be overridden
@@ -446,6 +458,20 @@ do_force_unmount() {
export nfslock_reclaim=1
fi

+ if [ "$OCF_RESKEY_nfsrestart" = "yes" ] ||
+ [ "$OCF_RESKEY_nfsrestart" = "1" ]; then
+ if [ -f /proc/fs/nfsd/threads ]; then
+ ocf_log warning "Restarting nfsd/nfslock"
+ nfsdthreads="$(cat /proc/fs/nfsd/threads)"
+ service nfslock stop
+ rpc.nfsd 0
+ rpc.nfsd $nfsdthreads
+ service nfslock start
+ else
+ ocf_log err "Unable to determin nfsd information. nfsd restart aborted"
+ fi
+ fi
+
# Proceed with fuser -kvm...
return 1
}
--
1.7.7.6

"Fabio M. Di Nitto" 05-16-2012 01:37 PM

rgmanager: add nfsdrestart option as last resource to umount fs
 
From: "Fabio M. Di Nitto" <fdinitto@redhat.com>

Resolves: rhbz#822066

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
---
rgmanager/src/resources/fs.sh | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/rgmanager/src/resources/fs.sh b/rgmanager/src/resources/fs.sh
index 49912c2..f67f80e 100755
--- a/rgmanager/src/resources/fs.sh
+++ b/rgmanager/src/resources/fs.sh
@@ -202,6 +202,18 @@ meta_data()
<content type="boolean"/>
</parameter>

+ <parameter name="nfsrestart" inherit="nfsrestart">
+ <longdesc lang="en">
+ If set and unmounting the file system fails, the node will
+ try to restart nfs daemon and nfs lockd to drop all filesystem
+ references. Use this option as last resource.
+ </longdesc>
+ <shortdesc lang="en">
+ Enable NFS daemon and lockd workaround
+ </shortdesc>
+ <content type="boolean"/>
+ </parameter>
+
<parameter name="fsid">
<longdesc lang="en">
File system ID for NFS exports. This can be overridden
@@ -1005,6 +1017,7 @@ stopFilesystem() {
typeset -i max_tries=3 # how many times to try umount
typeset -i sleep_time=5 # time between each umount failure
typeset -i nfslock_reclaim=0
+ typeset nfsdthreads
typeset done=""
typeset umount_failed=""
typeset force_umount=""
@@ -1108,6 +1121,20 @@ stop: Could not match $OCF_RESKEY_device with a real device"
notify_list_store $mp/.clumanager/statd
nfslock_reclaim=1
fi
+
+ if [ "$OCF_RESKEY_nfsrestart" = "yes" ] ||
+ [ "$OCF_RESKEY_nfsrestart" = "1" ]; then
+ if [ -f /proc/fs/nfsd/threads ]; then
+ ocf_log warning "Restarting nfsd/nfslock"
+ nfsdthreads="$(cat /proc/fs/nfsd/threads)"
+ service nfslock stop
+ echo 0 > /proc/fs/nfsd/threads
+ echo $nfsdthreads > /proc/fs/nfsd/threads
+ service nfslock start
+ else
+ ocf_log err "Unable to determin nfsd information. nfsd restart aborted"
+ fi
+ fi
else
fuser -kvm "$mp"
fi
--
1.7.7.6


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