Hi, 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 org.apache.solr.common.cloud.ClusterState.getCollection(ClusterState.java:175) at org.apache.solr.cloud.Overseer$ClusterStateUpdater.removeShard(Overseer.java:801) at org.apache.solr.cloud.Overseer$ClusterStateUpdater.processMessage(Overseer.java:230) at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:187) at java.lang.Thread.run(Thread.java:722) How can I delete that false information? Regards Oliver