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https://issues.apache.org/jira/browse/SOLR-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13532219#comment-13532219
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Markus Jelsma edited comment on SOLR-2592 at 12/14/12 10:46 AM:
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I think this belong to this issue. We're seeing with today's trunk and a clean
Zookeeper the following exception. For some reason, only one node exhibits this
behavior.
{code}
2012-12-14 10:10:27,355 ERROR [apache.zookeeper.ClientCnxn] -
[main-EventThread] - : Error while calling watcher
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Map
at
org.apache.solr.common.cloud.ClusterState.makeSlices(ClusterState.java:246)
at
org.apache.solr.common.cloud.ClusterState.collectionFromObjects(ClusterState.java:231)
at org.apache.solr.common.cloud.ClusterState.load(ClusterState.java:219)
at
org.apache.solr.common.cloud.ZkStateReader$2.process(ZkStateReader.java:207)
at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
{code}
Restarting the entire cluster and cleaning ZK does not help. This single node
remains stuborn and cannot get up. It also simply stops logging anything after
including the regular ping requests.
was (Author: markus17):
I think this belong to this issue. We're seeing with today's trunk and a
clean Zookeeper the following exception. For some reason, only one node
exhibits this behavior.
{code}
2012-12-14 10:10:27,355 ERROR [apache.zookeeper.ClientCnxn] -
[main-EventThread] - : Error while calling watcher
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Map
at
org.apache.solr.common.cloud.ClusterState.makeSlices(ClusterState.java:246)
at
org.apache.solr.common.cloud.ClusterState.collectionFromObjects(ClusterState.java:231)
at org.apache.solr.common.cloud.ClusterState.load(ClusterState.java:219)
at
org.apache.solr.common.cloud.ZkStateReader$2.process(ZkStateReader.java:207)
at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
{code}
> Custom Hashing
> --------------
>
> Key: SOLR-2592
> URL: https://issues.apache.org/jira/browse/SOLR-2592
> Project: Solr
> Issue Type: New Feature
> Components: SolrCloud
> Affects Versions: 4.0-ALPHA
> Reporter: Noble Paul
> Assignee: Yonik Seeley
> Fix For: 4.1
>
> Attachments: dbq_fix.patch, pluggable_sharding.patch,
> pluggable_sharding_V2.patch, SOLR-2592_collectionProperties.patch,
> SOLR-2592_collectionProperties.patch, SOLR-2592.patch,
> SOLR-2592_progress.patch, SOLR-2592_query_try1.patch,
> SOLR-2592_r1373086.patch, SOLR-2592_r1384367.patch, SOLR-2592_rev_2.patch,
> SOLR_2592_solr_4_0_0_BETA_ShardPartitioner.patch
>
>
> If the data in a cloud can be partitioned on some criteria (say range, hash,
> attribute value etc) It will be easy to narrow down the search to a smaller
> subset of shards and in effect can achieve more efficient search.
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