vcs engine logs accross the nodes are not in sync.
Updated: 21 May 2010 | 3 comments
My understanding about the vcs engine log was that it will be in sync, that's identical, accross all the active nodes in a cluster, log messages move over the LLT link and HAD does the job of logging using a cyclic buffer.
But, I am seeing quiet a few active cluster nodes here, where the engine logs are not identical. Most of the log entries are seen in all the nodes, but some entries are missing in some nodes.
Can someone please share some information about how exactly the engine log entries gets to each node, and why wouldn't be in sync.
It's VCS5.0 on Solaris Sparc
Thanks
Arjun
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Ideally I would expect them
Ideally I would expect them to be in sync..... however if you fire any ha command from any of the node, that should be logged only on the node where you fired it... so only on that node you will get entry like "user root fired: hagrp......." while same entry will not be logged on other cluster nodes...
What sort of entries are missing in your case ?
Gaurav
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Is it possible to keep all
Is it possible to keep all VCS Engine logs on all nodes in sync automatically by Cluster itself?
vcs engine logs in sync accross nodes
If a node ever goes down for any period of time (whether the node goes down or HAD is just stopped for a while), the remaining nodes in the cluster will continue to log events. When the node re-joins the cluster its logs will be missing entries for all the cluster events that occured while it was down.
There is no mechanism to "sync" the cluster logs.
Regards,
-Kyle
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