I am trying to run through a few failure scenarios using a dual master approach using NFS as a shared storage solution to hold the Master's indexes. My goal is to be able to bring up a secondary master in the case that the primary master fails. I have several slaves using replication to pull indexes from the master.
I am NOT trying to do an active/active master. I will be failing traffic over from master to dormant master using a F5 vip. But it does beg the question...has anyone here done an active/active master with shared storage? So assuming for a moment I am doing active/dormant: >From a few quick google searches it looks like I need to configure both master's to use the SimpleFSLockFactory and to set "unlockOnStartup" to true in solconfig.xml. For those that have done this before, are there any other settings I should be aware of? What are the downsides to the SimpleFSLockFactory? Are most folks here keeping solr up and running on both hosts at the same time, or rather just starting solr manually on the dormant host once the primary dies? Thanks, Parker