Lars Gjestang created SOLR-12487:
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Summary: Possible corruption in tlog after restart of Solr
Key: SOLR-12487
URL: https://issues.apache.org/jira/browse/SOLR-12487
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud, update
Affects Versions: 6.5.1
Environment: Windows server 2012
12 CPU
96GB RAM
-DzkClientTimeout=45000-DzkRun
--Xms16g-Xmx16g-Xss256k
Reporter: Lars Gjestang
After restarting Solr we encountered issues replaying tlogs from one of our six
shards. The other shards were up and running after a couple hours of replay
(due to total tlog of 20gb which we are going to change from "on request" to
maxDocs/maxTime).
The log first states warnings about "Unexpected log entry or corrupt log" and
then we get the following error message:
java.util.concurrent.ExecutionException: org.apache.solr.common.SolrException:
Unable to create core [VCloud_shard1_replica1]
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.solr.core.CoreContainer.lambda$load$6(CoreContainer.java:581)
at
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:176)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.solr.common.SolrException: Unable to create core
[VCloud_shard1_replica1]
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:933)
at org.apache.solr.core.CoreContainer.lambda$load$5(CoreContainer.java:553)
at
com.codahale.metrics.InstrumentedExecutorService$InstrumentedCallable.call(InstrumentedExecutorService.java:197)
... 5 more
Caused by: org.apache.solr.common.SolrException: Error Instantiating Update
Handler, solr.DirectUpdateHandler2 failed to instantiate
org.apache.solr.update.UpdateHandler
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:965)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:831)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:918)
... 7 more
Caused by: org.apache.solr.common.SolrException: Error Instantiating Update
Handler, solr.DirectUpdateHandler2 failed to instantiate
org.apache.solr.update.UpdateHandler
at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:775)
at org.apache.solr.core.SolrCore.createUpdateHandler(SolrCore.java:823)
at org.apache.solr.core.SolrCore.initUpdateHandler(SolrCore.java:1071)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:936)
... 9 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:761)
... 12 more
Caused by: java.lang.StackOverflowError
at org.apache.solr.common.util.JavaBinCodec.readVInt(JavaBinCodec.java:998)
at org.apache.solr.common.util.JavaBinCodec.readMap(JavaBinCodec.java:612)
at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:298)
etc......
...
After this happens it won't do any more work on this shard and the main page in
solr displays:
"VCloud_shard1_replica1:
org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
Error Instantiating Update Handler, solr.DirectUpdateHandler2 failed to
instantiate org.apache.solr.update.UpdateHandler"
Based on the execption and the huge repeating StackOverflowError we believe the
tlog is corrupt and missing e.g. an end tag.
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