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From "Per Steffensen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3785) Cluster-state inconsistent
Date Tue, 04 Sep 2012 13:37:07 GMT
Per Steffensen created SOLR-3785:
------------------------------------

             Summary: Cluster-state inconsistent
                 Key: SOLR-3785
                 URL: https://issues.apache.org/jira/browse/SOLR-3785
             Project: Solr
          Issue Type: Bug
          Components: SolrCloud
    Affects Versions: 4.0
         Environment: Self-build Solr release built on Apache Solr revision 1355667 from 4.x
branch
            Reporter: Per Steffensen


Information in CloudSolrServer.getZkStateReader().getCloudState() (called cloudState below)
seems to be inconsistent. 

I have a Solr running the leader of slice "sliceName" in collection "collectionName" - no
replica to take over. I shut down this Solr, and I want to detect that there is now no leader
active. 

I do e.g.
{code}
ZkNodeProps leader = cloudState.getLeader(indexName, sliceName);
boolean notActive = (leader == null) || !leader.containsKey(ZkStateReader.STATE_PROP) || !leader.get(ZkStateReader.STATE_PROP).equals(ZkStateReader.ACTIVE);
{code}
This does not work. It seems like changing state of a shard does it not changed when this
Solr goes down.

I do e.g.
{code}
ZkNodeProps leader = cloudState.getLeader(indexName, sliceName);
boolean notActive = (leader == null) || !leader.containsKey(ZkStateReader.STATE_PROP) || !leader.get(ZkStateReader.STATE_PROP).equals(ZkStateReader.ACTIVE)
||
!leader.containsKey(ZkStateReader.NODE_NAME_PROP) || !cloudState.getLiveNodes().contains(leader.get(ZkStateReader.NODE_NAME_PROP))
{code}
Whis works.

It seems like live-nodes of cloudState is updated when Solr goes down, but that some of the
other info available through cloudState is not - e.g. getLeader().

This might already have already been solved on 4.x branch in a revision later than 1355667.
Then please just tell me - thanks.

Regards, Per Steffensen

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