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Konrad Windszus commented on OAK-1817: -------------------------------------- This is not easily feasible, as I was testing with an AEM6 beta (load21a). > NPE in MarkSweepGarbageCollector.saveBatchToFile during Datastore GC with > FileDataStore > --------------------------------------------------------------------------------------- > > Key: OAK-1817 > URL: https://issues.apache.org/jira/browse/OAK-1817 > Project: Jackrabbit Oak > Issue Type: Bug > Components: blob > Affects Versions: 0.20 > Reporter: Konrad Windszus > Assignee: Chetan Mehrotra > Attachments: NodeAndDataStoreOsgiConfig.zip > > > During running a datastore garbage collection on a Jackrabbit 2 FileDataStore > (org.apache.jackrabbit.oak.plugins.blob.datastore.FileDataStore, see > http://jackrabbit.apache.org/oak/docs/osgi_config.html) an NPE is thrown > {code} > 13.05.2014 17:50:16.944 *ERROR* [qtp1416657193-147] > org.apache.jackrabbit.oak.management.ManagementOperation Blob garbage > collection failed > java.lang.RuntimeException: Error in retrieving references > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector$1.addReference(MarkSweepGarbageCollector.java:395) > at > org.apache.jackrabbit.oak.plugins.segment.Segment.collectBlobReferences(Segment.java:248) > at > org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.collectBlobReferences(SegmentTracker.java:178) > at > org.apache.jackrabbit.oak.plugins.segment.SegmentBlobReferenceRetriever.collectReferences(SegmentBlobReferenceRetriever.java:38) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.iterateNodeTree(MarkSweepGarbageCollector.java:361) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.mark(MarkSweepGarbageCollector.java:201) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.markAndSweep(MarkSweepGarbageCollector.java:173) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.collectGarbage(MarkSweepGarbageCollector.java:149) > at > org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStoreService$2.collectGarbage(SegmentNodeStoreService.java:185) > at org.apache.jackrabbit.oak.plugins.blob.BlobGC$1.call(BlobGC.java:68) > at org.apache.jackrabbit.oak.plugins.blob.BlobGC$1.call(BlobGC.java:64) > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.NullPointerException: null > at > com.google.common.base.Preconditions.checkNotNull(Preconditions.java:192) > at com.google.common.base.Joiner.toString(Joiner.java:436) > at com.google.common.base.Joiner.appendTo(Joiner.java:108) > at com.google.common.base.Joiner.appendTo(Joiner.java:152) > at com.google.common.base.Joiner.join(Joiner.java:193) > at com.google.common.base.Joiner.join(Joiner.java:183) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.saveBatchToFile(MarkSweepGarbageCollector.java:317) > at > org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector$1.addReference(MarkSweepGarbageCollector.java:391) > ... 14 common frames omitted > {code} > Attached you find the OSGi config for both the nodestore and the datastore. -- This message was sent by Atlassian JIRA (v6.2#6252)