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From Oliver Schrenk <>
Subject SolrCloud 4.7: Overseer tries to delete a non-existing collection, throws exception and loops
Date Thu, 27 Feb 2014 10:42:08 GMT

Upgraded a small cluster from 4.3.1 to 4.7 in Solr Cloud mode.

I deleted the old data, replaced the solr.xml with the example solr.xml with auto-discovery,
but it seems there is still some old data somewhere, probably in Zookeeper that keep my machine
from starting.

It loops over the same log message over and over

	2014-02-27 11:00:49,011 INFO o.a.s.c.c.ZkStateReader [Thread-15] Updating cloud state from
ZooKeeper... 2014-02-27 11:00:49,012 INFO o.a.s.c.Overseer$ClusterStateUpdater [Thread-15]
Removing collection: collection1 shard: 2 from clusterstate 2014-02-27 11:00:49,012 ERROR
o.a.s.c.Overseer$ClusterStateUpdater [Thread-15] Exception in Overseer main queue loop org.apache.solr.common.SolrException:
Could not find collection:collection1 at
at$ClusterStateUpdater.removeShard( at$ClusterStateUpdater.processMessage(
at$ at

How can I delete that false information?

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