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https://issues.apache.org/jira/browse/SOLR-11378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17496158#comment-17496158
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Christine Poerschke commented on SOLR-11378:
--------------------------------------------
Actually this sounds quite similar to the SOLR-15695 issue.
> Solr can leak transaction logs if a commit happens during unload
> ----------------------------------------------------------------
>
> Key: SOLR-11378
> URL: https://issues.apache.org/jira/browse/SOLR-11378
> Project: Solr
> Issue Type: Bug
> Reporter: Shalin Shekhar Mangar
> Priority: Major
>
> I have a test called AutoscalingHistoryHandlerTest in the feature/autoscaling
> branch that fails fairly frequently due to the ObjectReleaseTracker
> complaining about TransactionLog not being closed. This happens because the
> solr core in question is being moved and is therefore unloaded but an
> auto-commit was in progress during this time. The commit does not succeed
> because a new searcher could not be opened and I think that causes the tlog
> reference to be leaked.
> It should be possible to isolate this problem into a smaller test by
> continuously indexing documents with a commitWithin and unloading the core in
> the middle of indexing.
> Here are the relevant stack traces:
> {code}
> 21106 ERROR (commitScheduler-48-thread-1) [n:127.0.0.1:54191_solr c:.system
> s:shard1 r:core_node5 x:.system_shard1_replica_n2] o.a.s.u.CommitTracker auto
> commit error...:org.apache.solr.common.SolrException: Error opening new
> searcher
> at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2076)
> at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:2196)
> at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1933)
> at
> org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:710)
> at org.apache.solr.update.CommitTracker.run(CommitTracker.java:222)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.solr.common.SolrException: openNewSearcher called on
> closed core
> at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2063)
> ... 11 more
> {code}
> {code}
> java.lang.AssertionError: ObjectTracker found 1 object(s) that were not
> released!!! [TransactionLog]
> org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
> org.apache.solr.update.TransactionLog
> at
> org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
> at org.apache.solr.update.TransactionLog.<init>(TransactionLog.java:190)
> at
> org.apache.solr.update.UpdateLog.newTransactionLog(UpdateLog.java:446)
> at org.apache.solr.update.UpdateLog.ensureLog(UpdateLog.java:1259)
> at org.apache.solr.update.UpdateLog.add(UpdateLog.java:532)
> at org.apache.solr.update.UpdateLog.add(UpdateLog.java:517)
> at
> org.apache.solr.update.DirectUpdateHandler2.doNormalUpdate(DirectUpdateHandler2.java:347)
> at
> org.apache.solr.update.DirectUpdateHandler2.addDoc0(DirectUpdateHandler2.java:266)
> at
> org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:216)
> at
> org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:67)
> at
> org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
> at
> org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:991)
> at
> org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:1207)
> at
> org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:753)
> at
> org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:103)
> at
> org.apache.solr.handler.loader.JavabinLoader$1.update(JavabinLoader.java:98)
> at
> org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readOuterMostDocIterator(JavaBinUpdateRequestCodec.java:188)
> at
> org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readIterator(JavaBinUpdateRequestCodec.java:144)
> at
> org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:311)
> at
> org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:256)
> at
> org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readNamedList(JavaBinUpdateRequestCodec.java:130)
> at
> org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:276)
> at
> org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:256)
> at
> org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:178)
> at
> org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.unmarshal(JavaBinUpdateRequestCodec.java:195)
> at
> org.apache.solr.handler.loader.JavabinLoader.parseAndLoadDocs(JavabinLoader.java:108)
> at
> org.apache.solr.handler.loader.JavabinLoader.load(JavabinLoader.java:55)
> at
> org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97)
> at
> org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:177)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:2484)
> at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:720)
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:526)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:382)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:326)
> {code}
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