Michael Dürig created OAK-2294:
----------------------------------
Summary: Corrupt repository after concurrent version operations
Key: OAK-2294
URL: https://issues.apache.org/jira/browse/OAK-2294
Project: Jackrabbit Oak
Issue Type: Bug
Components: jcr
Reporter: Michael Dürig
Priority: Blocker
Performing version operations (checkin / checkout / addVersionLabel)
concurrently can corrupt the repository.
Executing the following code in parallel from multiple threads demonstrates
this:
{code}
Version version = versionManager.checkin(vPath);
versionManager.checkout(vPath);
String label = version.getName() + " " + Thread.currentThread().getName();
version.getContainingHistory()
.addVersionLabel(version.getName(), label, true);
{code}
In my tests this eventually lead to all sorts of exceptions:
{noformat}
java.lang.IllegalStateException: RefId '85' doesn't exist in data segment
0c5c0814-902c-429c-ad41-cd82aea276a2
at
org.apache.jackrabbit.oak.plugins.segment.Segment.getRefId(Segment.java:196)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.internalReadRecordId(Segment.java:307)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readRecordId(Segment.java:303)
at
org.apache.jackrabbit.oak.plugins.segment.MapRecord.getBucketList(MapRecord.java:134)
at
org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:347)
at
org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:325)
at
org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:474)
at
org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:394)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:544)
...
{noformat}
{noformat}
java.lang.IllegalStateException: String is too long: 2159501163930351661
at
org.apache.jackrabbit.oak.plugins.segment.Segment.loadString(Segment.java:352)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:319)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:313)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.loadTemplate(Segment.java:418)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readTemplate(Segment.java:367)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readTemplate(Segment.java:361)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.getTemplate(SegmentNodeState.java:78)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:408)
...
{noformat}
{noformat}
java.lang.IllegalStateException
at
com.google.common.base.Preconditions.checkState(Preconditions.java:134)
at
org.apache.jackrabbit.oak.plugins.segment.file.TarWriter.writeEntry(TarWriter.java:206)
at
org.apache.jackrabbit.oak.plugins.segment.file.TarWriter.writeEntry(TarWriter.java:200)
at
org.apache.jackrabbit.oak.plugins.segment.file.FileStore.writeSegment(FileStore.java:682)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.flush(SegmentWriter.java:228)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.prepare(SegmentWriter.java:329)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeTemplate(SegmentWriter.java:969)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1039)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1062)
at
org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:395)
...
{noformat}
{noformat}
Caused by: java.lang.IllegalArgumentException: Invalid type tag: 81
at org.apache.jackrabbit.oak.api.Type.fromTag(Type.java:202)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.loadTemplate(Segment.java:418)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readTemplate(Segment.java:367)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readTemplate(Segment.java:361)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.getTemplate(SegmentNodeState.java:78)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.getProperty(SegmentNodeState.java:122)
...
{noformat}
{noformat}
Caused by: java.lang.IllegalStateException
at
com.google.common.base.Preconditions.checkState(Preconditions.java:134)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.pos(Segment.java:178)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.loadString(Segment.java:326)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:319)
at
org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:313)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentPropertyState.getValue(SegmentPropertyState.java:174)
at
org.apache.jackrabbit.oak.plugins.segment.SegmentPropertyState.getValue(SegmentPropertyState.java:147)
at
org.apache.jackrabbit.oak.plugins.memory.AbstractPropertyState.equal(AbstractPropertyState.java:53)
...
{noformat}
Will attach a patch with a test case shortly.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
