alain.moulle at bull
Jul 29, 2012, 11:30 PM
Post #3 of 3
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Hi,
By the way, with regard to a very older version of ocf script exportfs,
there was a exportfs_backup function which
was launching the backup_rmtab every 2 seconds. In the new script , the
backup_rmtab is executed at each
monitoring call , meaning every "op monitor interval value". But it seems
not reasonable to set this interval to 2s ,
meaning it would be at least 30s ... is there any recommandation about
this ? isn't there any drawback to do a
backup rmtab only every 30s ? particularly in case of one node breakdone
leading to failover ?
Thanks
Alain
De : alain.moulle [at] bull
A : linux-ha [at] lists
Date : 26/07/2012 16:49
Objet : [Linux-HA] tuning of ocf script exportfs
Envoyé par : linux-ha-bounces [at] lists
Hi Dejan
a little contribution on the script exportfs , last release found here
(delivered 16 days ago):
https://github.com/ClusterLabs/resource-agents/tree/master/heartbeat
two things except if I'm mistaking:
1/ little typo : I think the "." is missing for .ocf-shellfuncs
2/ the script does not work if we set the OCF_RESKEY_clientspec="*" in
params of the exportfs resource,
due to the exportfs_monitor function :
when using * instead of hostname, the exportfs is displaying for example :
/alain <world>
and the line :
exportfs | sed -e '$! N; s/\n[[:space:]]\+/ /; t;
s/[[:space:]]\+\([^[:space:]]\+\)\(\n\|$\)/ \1\2/g; P;D;' | grep -q -x -F
"${OCF_RESKEY_directory} ${OCF_RESKEY_clientspec}"
returns 1 and then $OCF_NOT_RUNNING
So I don't know if it is the more elegant manner to fix this little issue,
but I've added at the begining of exportfs_monitor :
exportfs_monitor ()
{
# exportfs output wraps lines for long export directory names.
# We unwrap here with sed.
# We then do a literal match on the full line (grep -x -F)
if [ "${OCF_RESKEY_clientspec}" == "*" ]; then
CLIENTSPEC="<world>"
else
CLIENTSPEC=${OCF_RESKEY_clientspec}
fi
and use $CLIENTSPEC on the grep :
exportfs | sed -e '$! N; s/\n[[:space:]]\+/ /; t;
s/[[:space:]]\+\([^[:space:]]\+\)\(\n\|$\)/ \1\2/g; P;D;' | grep -q -x -F
"${OCF_RESKEY_directory} ${CLIENTSPEC}
With this tuning, it works fine.
Regards
Alain
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