Hi Solr users,
i try to configure Cross Data Center Replication according to
https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=62687462
I set up two independent solr clouds. I created the collection "cdcr_testa" on
the source cloud and the collection "backup_collection" on the target cloud.
I adapted the configurations, according to the documentation.
solrconfig.xml of the collection "cdcr_testa" in the source cluster:
<requestHandler name="/cdcr" class="solr.CdcrRequestHandler">
<lst name="replica">
<str name="zkHost">127.0.0.2:2181</str>
<str name="source">cdcr_testa</str>
<str name="target">backup_collection</str>
</lst>
<lst name="replicator">
<str name="threadPoolSize">8</str>
<str name="schedule">1000</str>
<str name="batchSize">128</str>
</lst>
<lst name="updateLogSynchronizer">
<str name="schedule">1000</str>
</lst>
</requestHandler>
solrconfig.xml of the collection "backup_collection" in the target cluster:
<requestHandler name="/cdcr" class="solr.CdcrRequestHandler">
<lst name="buffer">
<str name="defaultState">disabled</str>
</lst>
</requestHandler>
<requestHandler name="/update" class="solr.UpdateRequestHandler">
<lst name="defaults">
<str name="update.chain">cdcr-processor-chain</str>
</lst>
</requestHandler>
<updateRequestProcessorChain name="cdcr-processor-chain">
<processor class="solr.CdcrUpdateProcessorFactory"/>
<processor class="solr.RunUpdateProcessorFactory"/>
</updateRequestProcessorChain>
<!-- Modify the <updateLog> section of your existing <updateHandler> in your
config as below -->
<updateHandler class="solr.DirectUpdateHandler2">
<updateLog class="solr.CdcrUpdateLog">
<str name="dir">${solr.ulog.dir:}</str>
<!--Any parameters from the original <updateLog> section -->
</updateLog>
</updateHandler>
When I now reload the collection "cdcr_testa", I allways get the following
Solr Exception
2016-11-23 12:05:35.604 ERROR (qtp1134712904-8045) [c:cdcr_testa s:shard1
r:core_node1 x:cdcr_testa_shard1_replica1] o.a.s.s.HttpSolrCall
null:org.apache.solr.common.SolrException: Error handling 'reload' action
at
org.apache.solr.handler.admin.CoreAdminOperation$3.call(CoreAdminOperation.java:150)
at
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:367)
at
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:158)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)
at
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:663)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:445)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:518)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.solr.common.SolrException: Unable to reload core
[cdcr_testa_shard1_replica1]
at org.apache.solr.core.CoreContainer.reload(CoreContainer.java:920)
at
org.apache.solr.handler.admin.CoreAdminOperation$3.call(CoreAdminOperation.java:148)
... 31 more
Caused by: org.apache.solr.common.SolrException: Solr instance is not
configured with the cdcr update log.
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:773)
at org.apache.solr.core.SolrCore.reload(SolrCore.java:462)
at org.apache.solr.core.CoreContainer.reload(CoreContainer.java:914)
... 32 more
Caused by: org.apache.solr.common.SolrException: Solr instance is not
configured with the cdcr update log.
at
org.apache.solr.handler.CdcrRequestHandler.inform(CdcrRequestHandler.java:223)
at
org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:675)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:753)
... 34 more
This exception occurs on every reload.
Do you have any idea, what might be the cause of the problem?
Best regards,
Gero
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