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https://issues.apache.org/jira/browse/SOLR-10824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049672#comment-16049672
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Mikhail Khludnev commented on SOLR-10824:
-----------------------------------------
Steps to reproduce:
* launched cloud example 4 nodes,
* created test collection 3x3 (my gut feeling is that it's caused by 3
replicas, at least it's reproduced when it's 3).
* indexed example docs
* added {{<statsCache
class="org.apache.solr.search.stats.ExactSharedStatsCache"/>}} via {{zk
downconfig/vim/zk upconfig}}
* here we go
{code}
<lst name="responseHeader">
<bool name="zkConnected">true</bool>
<int name="status">500</int>
<int name="QTime">14</int>
<lst name="params">
<str name="q">_text_:all</str>
<str name="indent">on</str>
<str name="wt">xml</str>
<str name="_">1497475014424</str>
</lst>
</lst>
<lst name="error">
<str name="trace">java.lang.NullPointerException
at
org.apache.solr.search.stats.ExactSharedStatsCache.getPerShardTermStats(ExactSharedStatsCache.java:76)
at
org.apache.solr.search.stats.ExactStatsCache.sendGlobalStats(ExactStatsCache.java:233)
at
org.apache.solr.handler.component.QueryComponent.createMainQuery(QueryComponent.java:942)
at
org.apache.solr.handler.component.QueryComponent.regularDistributedProcess(QueryComponent.java:738)
at
org.apache.solr.handler.component.QueryComponent.distributedProcess(QueryComponent.java:691)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:346)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2477)
{code}
What's your bets and opinions?
> java.lang.NullPointerException ExactSharedStatsCache.getPerShardTermStats
> --------------------------------------------------------------------------
>
> Key: SOLR-10824
> URL: https://issues.apache.org/jira/browse/SOLR-10824
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: search
> Affects Versions: 6.6
> Reporter: Mikhail Khludnev
> Priority: Minor
>
> {quote}
> INFO [qtp411311908-32] (SolrCore.java:2304) - [collection1_shard3_replica2]
> webapp=/solr path=/select
> params={..&distrib=false&_stateVer_=collection1:5...&shards.purpose=32768&shard.url=http://127.0.0.1:57114/solr/collection1_shard3_replica2/|http://127.0.0.1:57112/solr/collection1_shard3_replica1/&version=2....)&NOW=1496751847089&isShard=true&applicability.frm=FRM&wt=javabin}
> status=0 QTime=18
> INFO [qtp2123780104-30] (SolrCore.java:2304) - [collection1_shard1_replica1]
> ...
> INFO [qtp411311908-45] (SolrCore.java:2304) - [collection1_shard2_replica1]
> ...
> ERROR [qtp411311908-33] (SolrException.java:148) -
> java.lang.NullPointerException
> at
> org.apache.solr.search.stats.ExactSharedStatsCache.getPerShardTermStats(ExactSharedStatsCache.java:76)
> at
> org.apache.solr.search.stats.ExactStatsCache.sendGlobalStats(ExactStatsCache.java:233)
> at
> org.apache.solr.handler.component.QueryComponent.createMainQuery(QueryComponent.java:930)
> at
> org.apache.solr.handler.component.QueryComponent.regularDistributedProcess(QueryComponent.java:726)
> at
> org.apache.solr.handler.component.QueryComponent.distributedProcess(QueryComponent.java:679)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:345)
> INFO [qtp411311908-33] (SolrCore.java:2304) - [collection1_shard3_replica2]
> webapp=/solr path=/select params={...&wt=javabin&version=2} status=500
> QTime=82
> {quote}
> Switching to {{LRUStatsCache}} seems help.
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