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From Patrick Hunt <ph...@apache.org>
Subject Re: IllegalArgumentException excpetion : Path cannot be null
Date Mon, 30 Aug 2010 18:14:37 GMT
The client (solr in this case) is passing a null path to the
ZooKeeper.getChildren(path, ... ) call.

java.lang.IllegalArgumentException: Path cannot be null
       at
org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
       at
org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
       at
org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)

I'm afraid you'll have to work with the solr team to determine the cause of
this.

Patrick

On Thu, Aug 26, 2010 at 12:15 AM, Yatir Ben Shlomo <yatirb@outbrain.com>wrote:

> I am running a zookeeper ensemble of 3 zookeeper instances
> and established a solrCloud to work with it (2 masters , 2 slaves)
> on one of the masters I keep noticing ZooKeeper related exceptions which I
> can't understand:
> And the other is java.lang.IllegalArgumentException: Path cannot be null
> (PathUtils.java:45)
>
> Here are my logs (I set the log level to FINE on zookeeper package)
>
>  Anyone can identify the issue?
> (I could not yet get any help from the solrCloud community)
>
>
> FINE: Reading reply sessionid:0x12a97312613010b, packet:: clientPath:null
> serverPath:null finished:false header:: -8,101  replyHeader:: -8,-1,0
>  request::
> 30064776552,v{'/collections},v{},v{'/collections/ENPwl/shards/ENPWL1,'/collections/ENPwl/shards/ENPWL4,'/collections/ENPwl/shards/ENPWL2,'/collections,'/collections/ENPwl/shards/ENPWL3,'/collections/ENPwlMaster/shards/ENPWLMaster_3,'/collections/ENPwlMaster/shards/ENPWLMaster_4,'/live_nodes,'/collections/ENPwlMaster/shards/ENPWLMaster_1,'/collections/ENPwlMaster/shards/ENPWLMaster_2}
>  response:: null
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category debug
> FINE: Reading reply sessionid:0x12a97312613010b, packet:: clientPath:null
> serverPath:null finished:false header:: 540,8  replyHeader:: 540,-1,0
>  request:: '/collections,F  response:: v{'ENPwl,'ENPwlMaster}
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.common.cloud.ZkStateReader$5.process(ZkStateReader.java:315)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL3 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL4 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL1 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.cloud.ZkController$2 process
> INFO: Updating live
> nodes:org.apache.solr.common.cloud.SolrZkClient@55308275
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Updating live nodes from ZooKeeper...
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category debug
> FINE: Reading reply sessionid:0x12a97312613010b, packet:: clientPath:null
> serverPath:null finished:false header:: 541,8  replyHeader:: 541,-1,0
>  request:: '/live_nodes,F  response:: v{'ob1078.nydc1.outbrain.com:8983
> _solr2,'ob1078.nydc1.outbrain.com:8983
> _solr1,'ob1061.nydc1.outbrain.com:8983
> _solr2,'ob1062.nydc1.outbrain.com:8983
> _solr1,'ob1062.nydc1.outbrain.com:8983
> _solr2,'ob1061.nydc1.outbrain.com:8983
> _solr1,'ob1077.nydc1.outbrain.com:8983
> _solr2,'ob1077.nydc1.outbrain.com:8983_solr1}
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.cloud.ZkController$2.process(ZkController.java:321)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ConnectionManager
> process
> INFO: Watcher org.apache.solr.common.cloud.ConnectionManager@339bb448name:ZooKeeperConnection
Watcher:zook1:2181,zook2:2181,zook3:2181 got event
> WatchedEvent: Server state change. New state: Disconnected path:null
> type:None
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_1 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_3 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL2 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_2 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_4 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$5
> process
> INFO: Detected a new or removed collection
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category debug
> FINE: Reading reply sessionid:0x12a97312613010b, packet:: clientPath:null
> serverPath:null finished:false header:: 542,8  replyHeader:: 542,-1,0
>  request:: '/collections,F  response:: v{'ENPwl,'ENPwlMaster}
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.common.cloud.ZkStateReader$5.process(ZkStateReader.java:315)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL3 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL4 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL1 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.cloud.ZkController$2 process
> INFO: Updating live
> nodes:org.apache.solr.common.cloud.SolrZkClient@55308275
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Updating live nodes from ZooKeeper...
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category debug
> FINE: Reading reply sessionid:0x12a97312613010b, packet:: clientPath:null
> serverPath:null finished:false header:: 543,8  replyHeader:: 543,-1,0
>  request:: '/live_nodes,F  response:: v{'ob1078.nydc1.outbrain.com:8983
> _solr2,'ob1078.nydc1.outbrain.com:8983
> _solr1,'ob1061.nydc1.outbrain.com:8983
> _solr2,'ob1062.nydc1.outbrain.com:8983
> _solr1,'ob1062.nydc1.outbrain.com:8983
> _solr2,'ob1061.nydc1.outbrain.com:8983
> _solr1,'ob1077.nydc1.outbrain.com:8983
> _solr2,'ob1077.nydc1.outbrain.com:8983_solr1}
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.cloud.ZkController$2.process(ZkController.java:321)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ConnectionManager
> process
> INFO: Watcher org.apache.solr.common.cloud.ConnectionManager@339bb448name:ZooKeeperConnection
Watcher:zook1:2181,zook2:2181,zook3:2181 got event
> WatchedEvent: Server state change. New state: SyncConnected path:null
> type:None
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_1 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_3 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL2 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category info
> INFO: Attempting connection to server zook2/192.168.252.62:2181
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category info
> INFO: Priming connection to java.nio.channels.SocketChannel[connected
> local=/192.168.252.77:54892 remote=zook2/192.168.252.62:2181]
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category info
> INFO: Server connection successful
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.common.cloud.ZkStateReader$5.process(ZkStateReader.java:315)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL1 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_2 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.cloud.ZkController$2 process
> INFO: Updating live
> nodes:org.apache.solr.common.cloud.SolrZkClient@29d03e78
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Updating live nodes from ZooKeeper...
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.cloud.ZkController$2.process(ZkController.java:321)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_4 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL4 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_1 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL3 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL2 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ConnectionManager
> process
> INFO: Watcher org.apache.solr.common.cloud.ConnectionManager@40bb2bc3name:ZooKeeperConnection
Watcher:zook1:2181,zook2:2181,zook3:2181 got event
> WatchedEvent: Server state change. New state: SyncConnected path:null
> type:None
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_3 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$5
> process
> INFO: Detected a new or removed collection
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.common.cloud.ZkStateReader$5.process(ZkStateReader.java:315)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL1 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_2 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.cloud.ZkController$2 process
> INFO: Updating live
> nodes:org.apache.solr.common.cloud.SolrZkClient@29d03e78
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Updating live nodes from ZooKeeper...
> Aug 25, 2010 5:18:19 AM org.apache.log4j.Category error
> SEVERE: Error while calling watcher
> java.lang.IllegalArgumentException: Path cannot be null
>        at
> org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
>        at
> org.apache.zookeeper.ZooKeeper.getChildren(zookeeper:ZooKeeper.java):1196)
>        at
> org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:200)
>        at
> org.apache.solr.cloud.ZkController$2.process(ZkController.java:321)
>        at
> org.apache.zookeeper.ClientCnxn$EventThread.run(zookeeper:ClientCnxn.java):425)
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_4 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWL4 in collection:ENPwl
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$4
> process
> INFO: Detected a shard change under ShardId:ENPWLMaster_1 in
> collection:ENPwlMaster
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader$6
> process
> INFO: Notified of CloudState change
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Cloud state update for ZooKeeper already scheduled
> Aug 25, 2010 5:18:19 AM org.apache.solr.cloud.ZkController$2 process
> INFO: Updating live
> nodes:org.apache.solr.common.cloud.SolrZkClient@29d03e78
> Aug 25, 2010 5:18:19 AM org.apache.solr.common.cloud.ZkStateReader
> updateCloudState
> INFO: Updating live nodes from ZooKeeper...
> Aug 25, 2010 5:18:22 AM org.apache.log4j.Category debug
> FINE: Got ping response for sessionid:0x12a97312613010b after 0ms
>

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