In case all your Zk nodes go down, the querying would continue to work fine (as far as no nodes fail) but you'd not be able to add docs.
Sent from my iPhone On 03-May-2013, at 17:52, Shawn Heisey <s...@elyograg.org> wrote: > On 5/3/2013 6:07 PM, Walter Underwood wrote: >> Ideally, the Solr nodes should be able to continue as long as no node fails. >> Failure of a leader would be bad, failure of non-leader replicas might cause >> some timeouts, but could be survivable. >> >> Of course, nodes could not be added. > > I have read a few things that say things go read only when the zookeeper > ensemble loses quorum. I'm not sure whether that means that Solr goes > read only or zookeeper goes read only. I would be interested in knowing > exactly what happens when zookeeper loses quorum as well as what happens > if all three (or more) zookeeper nodes in the ensemble go away entirely. > > I have a SolrCloud I can experiment with, but I need to find a > maintenance window for testing, so I can't check right now. > > Thanks, > Shawn >
