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https://issues.apache.org/jira/browse/SOLR-5000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699188#comment-13699188
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Steve Rowe commented on SOLR-5000:
----------------------------------
Thanks for reporting, Jun, I can reproduce this, but I'm not sure yet what's
happening.
When ManagedIndexSchema persists to disk or ZooKeeper, it asks parent class
IndexSchema to populate a NamedList containing all schema elements, including
the unique key field name, and then uses SchemaXmlWriter to convert the
NamedList to XML. SchemaXmlWriter looks for the unique key property and
appears to do the right thing. So my suspicion at this point is that
IndexSchema.uniqueKeyFieldName isn't being populated when the schema is parsed,
though IndexSchema.uniqueKeyField obviously must be populated, or else stuff
wouldn't work. I'll look into it more later today.
> ManagedIndexSchema not persist uniqueKey tag after calling addFields method.
> ----------------------------------------------------------------------------
>
> Key: SOLR-5000
> URL: https://issues.apache.org/jira/browse/SOLR-5000
> Project: Solr
> Issue Type: Bug
> Components: Schema and Analysis
> Affects Versions: 4.4
> Reporter: Jun Ohtani
> Assignee: Steve Rowe
> Fix For: 4.4
>
>
> My co-worker found this one.
> I try to add field via Schema REST API using example-schemaless/solr.
> There is no problem starting sold at first time.
> But restart Jetty, then output this error.
> 8385 [qtp620249139-18] ERROR org.apache.solr.servlet.SolrDispatchFilter –
> null:org.apache.solr.common.SolrException: SolrCore 'collection1' is not
> available due to init failure: QueryElevationComponent requires the schema to
> have a uniqueKeyField.
> at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:971)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:248)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:155)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
> at org.eclipse.jetty.server.Server.handle(Server.java:368)
> at
> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
> at
> org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
> at
> org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:953)
> at
> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1014)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)
> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
> at
> org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
> at
> org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: org.apache.solr.common.SolrException: QueryElevationComponent
> requires the schema to have a uniqueKeyField.
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:833)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:627)
> at
> org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:733)
> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:768)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:439)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:431)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> ... 1 more
> Caused by: org.apache.solr.common.SolrException: QueryElevationComponent
> requires the schema to have a uniqueKeyField.
> at
> org.apache.solr.handler.component.QueryElevationComponent.inform(QueryElevationComponent.java:177)
> at
> org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:599)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:828)
> ... 13 more
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