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From YouPeng Yang <yypvsxf19870...@gmail.com>
Subject Cannot create core
Date Tue, 17 Dec 2013 05:41:45 GMT
Hi

 I get an weird problem.
 I try to create a core within Solr4.6.

Firstly, on my solr web server tomcat, a log come out[1]:
Then lots of Overseer  Info  logs come out as [2]. And then the creation
failed.

I have also notice that there is a lot of qn in the Overseer  on the
zookeeper:

[zk: localhost:2181(CONNECTED) 45] ls /overseer/queue
[qn-0000000038, qn-0000000037, qn-0000000039, qn-0000000034, qn-0000000033,
qn-0000000036, qn-0000000044, qn-0000000035, qn-0000000042, qn-0000000043,
qn-0000000030, qn-0000000031, qn-0000000040, qn-0000000032, qn-0000000041]


Why are there so many qn.? I do not know the reason to the core creation
failed.
Please help .



[1]----------------------------------------------------------------
......
293699 [http-bio-8081-exec-1] INFO  org.apache.solr.cloud.ZkController  –
publishing core=reportCore_201310 state=down
293700 [http-bio-8081-exec-1] INFO  org.apache.solr.cloud.ZkController  –
numShards not found on descriptor - reading it from system property
293704 [http-bio-8081-exec-1] INFO  org.apache.solr.cloud.ZkController  –
waiting to find shard id in clusterstate for reportCore_201310


[2]---------------------------------------------------------------------------------------------------
136661 [Thread-2] INFO  org.apache.solr.common.cloud.ZkStateReader  –
Updating cloud state from ZooKeeper...
136663 [Thread-2] INFO  org.apache.solr.cloud.Overseer  – Update state
numShards=null message={
  "operation":"state",
  "state":"down",
  "base_url":"http://10.1.22.1:8080/solr",
  "core":"reportCore_201310",
  "roles":null,
  "node_name":"10.1.22.1:8080_solr",
  "shard":"reportCore_201310",
  "shard_range":null,
  "shard_state":"active",
  "shard_parent":null,
  "collection":"repCore",
  "numShards":null,
  "core_node_name":"reportCore_201310"}
136663 [Thread-2] ERROR org.apache.solr.cloud.Overseer  – Exception in
Overseer main queue loop
java.lang.NullPointerException
    at
org.apache.solr.cloud.Overseer$ClusterStateUpdater.updateState(Overseer.java:360)
    at
org.apache.solr.cloud.Overseer$ClusterStateUpdater.processMessage(Overseer.java:204)
    at
org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:166)
    at java.lang.Thread.run(Thread.java:662)

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