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Posted to dev@lucene.apache.org by "Patanachai Tangchaisin (JIRA)" <ji...@apache.org> on 2013/04/10 10:04:15 UTC
[jira] [Commented] (SOLR-4186) QueryComponent NPE
[ https://issues.apache.org/jira/browse/SOLR-4186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13627591#comment-13627591 ]
Patanachai Tangchaisin commented on SOLR-4186:
----------------------------------------------
After digging into this, a real cause of a problem is when shards.tolerant = true and there is a Exception during retrieving field request.
A solution is depend on how client expect Solr to behave when error occurs
- If client is OK if Solr returns less document than request (rows parameter) then skipping a shard request which has an error can be a solution.
- If client must have a same number of document as rows, then retrying would be another options
- Otherwise, wrapping this exception and throw to client with a proper error message.
> QueryComponent NPE
> ------------------
>
> Key: SOLR-4186
> URL: https://issues.apache.org/jira/browse/SOLR-4186
> Project: Solr
> Issue Type: Bug
> Components: search, SolrCloud
> Affects Versions: 4.0, 5.0
> Environment: recent trunk exports
> Reporter: Markus Jelsma
> Fix For: 4.3
>
>
> Similar to SOLR-4049, the QueryComponent throws the following NPE in case a distributed search fails for some reason. This bug has been around for at least one or two weeks.
> {code}
> 2012-12-14 10:00:41,611 ERROR [solr.servlet.SolrDispatchFilter] - [http-8080-exec-5] - : null:java.lang.NullPointerException
> at org.apache.solr.handler.component.QueryComponent.returnFields(QueryComponent.java:967)
> at org.apache.solr.handler.component.QueryComponent.handleRegularResponses(QueryComponent.java:629)
> at org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:604)
> at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:311)
> at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:146)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1818)
> at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:479)
> at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:279)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
> at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:744)
> at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2274)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> {code}
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