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document NFS_TICKLE_SHARED_DIRECTORY on our web page

(This used to be ctdb commit 40ec29f602897e9b01a6747806f502ab38423d54)
This commit is contained in:
Ronnie Sahlberg 2007-09-06 08:21:11 +10:00
parent 46eecfea27
commit 0781616ef9

View File

@ -40,6 +40,7 @@ which causes problems on some clients.<br>
This file should look something like :
<pre>
CTDB_MANAGES_NFS=yes
NFS_TICKLE_SHARED_DIRECTORY=/gpfs0/nfs-tickles
LOCKD_TCPPORT=599
LOCKD_UDPPORT=599
STATD_SHARED_DIRECTORY=/gpfs0/nfs-state
@ -65,6 +66,13 @@ Don't forget to create this directory:
mkdir /gpfs0/nfs-state
</pre>
NFS_TICKLE_SHARED_DIRECTORY is where ctdb will store information about which
clients have established tcp connections to the cluster. This information
is used during failover of ip addresses.
This allows the node that takes over an ip address to very quickly 'tickle' and reset any tcp connections for the ip address it took over.<br>
The reason to do this is to improve the speed at which a client will detect
that the tcp connection for NFS needs to be reestablished and to speed up
recovery in the client.<br>
<h2>chkconfig</h2>