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The "SolrCloud" page has been changed by Mark Miller: http://wiki.apache.org/solr/SolrCloud?action=diff&rev1=78&rev2=79 == FAQ == * '''Q:''' I'm seeing lot's of session timeout exceptions - what to do? - . '''A:''' Try raising the ZooKeeper session timeout by editing solr.xml - see the zkClientTimeout attribute. The minimum session timeout is 2 times your ZooKeeper defined tickTime. The maximum is 20 times the tickTime. The default tickTime is 2 seconds. + . '''A:''' Try raising the ZooKeeper session timeout by editing solr.xml - see the zkClientTimeout attribute. The minimum session timeout is 2 times your ZooKeeper defined tickTime. The maximum is 20 times the tickTime. The default tickTime is 2 seconds. You should avoiding raising this for no good reason, but it should be high enough that you don't see a lot of false session timeouts due to load, network lag, or garbage collection pauses. Some environments might need to go as high as 30-60 seconds. * '''Q:''' How do I use SolrCloud, but distribute updates myself? . '''A:''' Add the following UpdateProcessorFactory somewhere in your update chain: '''NoOpDistributingUpdateProcessorFactory''' * '''Q:''' What is the difference between a Collection and a SolrCore?