Cluster Configuration Problems

[vasillalov]

Folks,

I need some help with configuring alfresco in a clustered setup.

I have 2 RHEL5 servers running the latest Alfresco Enterprise trial version. I have both servers installed and running. I followed the wiki page for configuring the cluster: http://wiki.alfresco.com/wiki/Cluster_Configuration_V1.4_to_V2.1.2

I am using MySQL database sitting on a separate machine. I created a user on one of the nodes. I am able to login with this user on the other node. So user replication is working.  Now, the problem is that when I upload content on one of the nodes, it does not show up on the other node once I login.


Here is what I have in custom-repository.properties on both servers:

###############################
## Common Alfresco Properties #
###############################

#
# Sample custom content and index data location
#
dir.root=/opt/contentstore/contentstore
dir.indexes=/opt/alfresco/alf_data/lucene-indexes

# Set the frequency with which the index tracking is triggered.
# By default, this is effectively never, but can be modified as required.
#    Examples:
#       Once every five seconds: 0/5 * * * * ?
#       Once every two seconds : 0/2 * * * * ?
#       See http://quartz.sourceforge.net/javadoc/org/quartz/CronTrigger.html
index.tracking.cronExpression=0/5 * * * * ?
index.tracking.adm.cronExpression=${index.tracking.cronExpression}
index.tracking.avm.cronExpression=${index.tracking.cronExpression}
# Other properties.
index.tracking.maxTxnDurationMinutes=60
index.tracking.reindexLagMs=1000
index.tracking.maxRecordSetSize=1000
index.recovery.mode=AUTO


#
# MySQL connection (This is default and requires mysql-connector-java-5.0.3-bin.jar, which ships with the Alfresco server)
#
db.driver=org.gjt.mm.mysql.Driver
db.url=jdbc:mysql://x.x.x.x/alfresco

….
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What am I missing?

[pmonks]

Is /opt/contentstore/contentstore a shared filesystem across the two nodes?  Also, have you configured EHCache correctly, including creation of a multicast address for the cluster?

Cheers,
Peter

[vasillalov]

Peter,

Thanks for the response. To answer your questions:

Yes, /opt/contentstore is a shared volume sitting on a SAN with OCFS2 file system. EH Cache is configured correctly.

I did find out what the problem was: the two servers had different time. The two servers had time settings almost 9 hours apart. I synced them up to our time server and content replication started working just fine.