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https://issues.apache.org/jira/browse/BOOKKEEPER-251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sijie Guo updated BOOKKEEPER-251:
---------------------------------
Attachment: BK-251.diff
add a patch to remove noise warn messages.
1) check whether the log id is existed or not before scanning it. so we don't
need to scan those garbage collected log files.
2) track the last log id we have scanned, we don't need to scan those entry log
id before it.
> Noise error message printed when scanning entry log files those have been
> garbage collected.
> --------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-251
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-251
> Project: Bookkeeper
> Issue Type: Improvement
> Components: bookkeeper-server
> Affects Versions: 4.1.0
> Reporter: Sijie Guo
> Fix For: 4.1.0
>
> Attachments: BK-251.diff
>
>
> currently, due to the messy scan mechanism deployed by garbage collector
> thread. following noise error message would be printed when scanning those
> entry log files has been garbage collected.
> {quote}
> 2012-05-09 15:58:52,742 - INFO
> [GarbageCollectorThread:GarbageCollectorThread@466] - Extracting entry log
> meta from entryLogId: 0
> 2012-05-09 15:58:52,743 - WARN [GarbageCollectorThread:EntryLogger@386] -
> Failed to get channel to scan entry log: 0.log
> 2012-05-09 15:58:52,743 - WARN
> [GarbageCollectorThread:GarbageCollectorThread@473] - Premature exception
> when processing 0recovery will take care of the problem
> java.io.FileNotFoundException: No file for log 0
> at
> org.apache.bookkeeper.bookie.EntryLogger.findFile(EntryLogger.java:366)
> at
> org.apache.bookkeeper.bookie.EntryLogger.getChannelForLogId(EntryLogger.java:340)
> at
> org.apache.bookkeeper.bookie.EntryLogger.scanEntryLog(EntryLogger.java:384)
> at
> org.apache.bookkeeper.bookie.GarbageCollectorThread.extractMetaFromEntryLog(GarbageCollectorThread.java:485)
> at
> org.apache.bookkeeper.bookie.GarbageCollectorThread.extractMetaFromEntryLogs(GarbageCollectorThread.java:470)
> at
> org.apache.bookkeeper.bookie.GarbageCollectorThread.run(GarbageCollectorThread.java:189)
> {quote}
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