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https://issues.apache.org/jira/browse/BOOKKEEPER-193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240988#comment-13240988
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[email protected] commented on BOOKKEEPER-193:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/4481/
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(Updated 2012-03-29 05:27:14.643196)
Review request for bookkeeper.
Changes
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improve patch to use latch instead of time.
Summary
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create a snapshot of bookie active ledgers, and then fetch the list of
zookeeper metadata, then it is safe to do garbage collection.
This addresses bug BOOKKEEPER-193.
https://issues.apache.org/jira/browse/BOOKKEEPER-193
Diffs (updated)
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bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/SnapshotMap.java
PRE-CREATION
bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/FlatLedgerManager.java
100cdad
bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/HierarchicalLedgerManager.java
169c906
bookkeeper-server/src/test/java/org/apache/bookkeeper/meta/GcLedgersTest.java
PRE-CREATION
bookkeeper-server/src/test/java/org/apache/bookkeeper/meta/LedgerManagerTestCase.java
PRE-CREATION
Diff: https://reviews.apache.org/r/4481/diff
Testing
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Thanks,
Sijie
> Ledger is garbage collected by mistake.
> ---------------------------------------
>
> Key: BOOKKEEPER-193
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-193
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Priority: Blocker
> Fix For: 4.1.0
>
> Attachments: BK-193.patch
>
>
> currently, we encountered such case: ledger is garbage collected by mistake,
> and following requests would fail due to NoLedgerException.
> {code}
> 2012-03-23 19:10:47,403 - INFO
> [GarbageCollectorThread:GarbageCollectorThread@234] - Garbage collecting
> deleted ledger index files.
> 2012-03-23 19:10:48,702 - INFO [GarbageCollectorThread:LedgerCache@544] -
> Deleting ledgerId: 89408
> 2012-03-23 19:10:48,703 - INFO [GarbageCollectorThread:LedgerCache@577] -
> Deleted ledger : 89408
> 2012-03-23 19:11:10,013 - ERROR [NIOServerFactory-3181:BookieServer@361] -
> Error writing 1@89408
> org.apache.bookkeeper.bookie.Bookie$NoLedgerException: Ledger 89408 not found
> at
> org.apache.bookkeeper.bookie.LedgerCache.getFileInfo(LedgerCache.java:228)
> at
> org.apache.bookkeeper.bookie.LedgerCache.updatePage(LedgerCache.java:260)
> at
> org.apache.bookkeeper.bookie.LedgerCache.putEntryOffset(LedgerCache.java:158)
> at
> org.apache.bookkeeper.bookie.LedgerDescriptor.addEntry(LedgerDescriptor.java:135)
> at
> org.apache.bookkeeper.bookie.Bookie.addEntryInternal(Bookie.java:1059)
> at org.apache.bookkeeper.bookie.Bookie.addEntry(Bookie.java:1099)
> at
> org.apache.bookkeeper.proto.BookieServer.processPacket(BookieServer.java:357)
> at
> org.apache.bookkeeper.proto.NIOServerFactory$Cnxn.readRequest(NIOServerFactory.java:315)
> at
> org.apache.bookkeeper.proto.NIOServerFactory$Cnxn.doIO(NIOServerFactory.java:213)
> at
> org.apache.bookkeeper.proto.NIOServerFactory.run(NIOServerFactory.java:124)
> {code}
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