[OAK-7837] oak-run check crashes with SNFE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0, 1.8.9
• Component/s: run, segment-tar
• Assignee: Michael Dürig
• Reporter: Michael Dürig
• Created: 16/Oct/18 08:04
• Updated: 04/Oct/19 17:49
• Resolved: 19/Oct/18 10:36

Description

I experienced a crash of oak-run check with a SNFE:

org.apache.jackrabbit.oak.segment.SegmentNotFoundException: Segment 48973c89-9e61-4757-a93d-384da83ec170 not found
at org.apache.jackrabbit.oak.segment.file.AbstractFileStore.readSegmentUncached(AbstractFileStore.java:281)
at org.apache.jackrabbit.oak.segment.file.ReadOnlyFileStore$1.call(ReadOnlyFileStore.java:124)
at org.apache.jackrabbit.oak.segment.file.ReadOnlyFileStore$1.call(ReadOnlyFileStore.java:121)
at org.apache.jackrabbit.oak.segment.SegmentCache$NonEmptyCache.lambda$getSegment$0(SegmentCache.java:163)
at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4724)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
at com.google.common.cache.LocalCache.get(LocalCache.java:3932)
at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4721)
at org.apache.jackrabbit.oak.segment.SegmentCache$NonEmptyCache.getSegment(SegmentCache.java:160)
at org.apache.jackrabbit.oak.segment.file.ReadOnlyFileStore.readSegment(ReadOnlyFileStore.java:121)
at org.apache.jackrabbit.oak.segment.SegmentId.getSegment(SegmentId.java:153)
at org.apache.jackrabbit.oak.segment.Record.getSegment(Record.java:70)
at org.apache.jackrabbit.oak.segment.MapRecord.getEntry(MapRecord.java:160)
at org.apache.jackrabbit.oak.segment.MapRecord.getEntry(MapRecord.java:172)
at org.apache.jackrabbit.oak.segment.SegmentNodeState.hasChildNode(SegmentNodeState.java:441)
at org.apache.jackrabbit.oak.segment.file.tooling.ConsistencyChecker$NodeWrapper.deriveTraversableNodeOnPath(ConsistencyChecker.java:498)
at org.apache.jackrabbit.oak.segment.file.tooling.ConsistencyChecker.checkPathAtRoot(ConsistencyChecker.java:383)
at org.apache.jackrabbit.oak.segment.file.tooling.ConsistencyChecker.checkPathsAtRoot(ConsistencyChecker.java:353)
at org.apache.jackrabbit.oak.segment.file.tooling.ConsistencyChecker.checkConsistency(ConsistencyChecker.java:200)
at org.apache.jackrabbit.oak.segment.tool.Check.run(Check.java:243)
at org.apache.jackrabbit.oak.run.CheckCommand.execute(CheckCommand.java:88)
at org.apache.jackrabbit.oak.run.Main.main(Main.java:49)

AFAICS the problem is the check of the path not being resilient against SNFE.

Issue Links

• duplicates: OAK-7728 Oak run check command fails with SegmentNotFound exception
• is duplicated by: OAK-7728 Oak run check command fails with SegmentNotFound exception