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https://issues.apache.org/jira/browse/CASSANDRA-5146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582606#comment-13582606
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Yuki Morishita commented on CASSANDRA-5146:
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>From the code, I see two points where repair can hang.
- Merkle tree calculation failure
- Data streaming failure
Those have been addressed in CASSANDRA-3112, so let's revisit that issue.
For point one, we need to change message to report back failure, so we have to
do that in next major release.
But point two more likely to happen than point one, fix that alone should be in
minor release.
> repair -pr hangs
> ----------------
>
> Key: CASSANDRA-5146
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5146
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.2.0
> Environment: Ubuntu 12.04
> Reporter: Michael Kjellman
> Assignee: Sylvain Lebresne
> Fix For: 1.2.2
>
>
> while running a repair -pr the repair seems to hang after getting a merkle
> tree
> {code}
> INFO [AntiEntropySessions:9] 2013-01-10 18:23:01,652 AntiEntropyService.java
> (line 652) [repair #d29fd100-5b95-11e2-b9c7-dd50a26832ff] new session: will
> sync /10.8.25.101, /10.8.30.14 on range
> (28356863910078205288614550619314017620,42535295865117307932921825928971026436]
> for evidence.[fingerprints, messages]
> INFO [AntiEntropySessions:9] 2013-01-10 18:23:01,653 AntiEntropyService.java
> (line 857) [repair #d29fd100-5b95-11e2-b9c7-dd50a26832ff] requesting merkle
> trees for fingerprints (to [/10.8.30.14, /10.8.25.101])
> INFO [ValidationExecutor:7] 2013-01-10 18:23:01,654 ColumnFamilyStore.java
> (line 647) Enqueuing flush of
> Memtable-fingerprints@500862962(12960712/12960712 serialized/live bytes, 469
> ops)
> INFO [FlushWriter:25] 2013-01-10 18:23:01,655 Memtable.java (line 424)
> Writing Memtable-fingerprints@500862962(12960712/12960712 serialized/live
> bytes, 469 ops)
> INFO [FlushWriter:25] 2013-01-10 18:23:02,058 Memtable.java (line 458)
> Completed flushing
> /data2/cassandra/evidence/fingerprints/evidence-fingerprints-ib-192-Data.db
> (11413718 bytes) for commitlog position
> ReplayPosition(segmentId=1357767160463, position=8921654)
> INFO [AntiEntropyStage:1] 2013-01-10 18:25:52,735 AntiEntropyService.java
> (line 214) [repair #d29fd100-5b95-11e2-b9c7-dd50a26832ff] Received merkle
> tree for fingerprints from /10.8.25.101
> {code}
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