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https://issues.apache.org/jira/browse/KAFKA-1194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15711144#comment-15711144
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Abhi commented on KAFKA-1194:
-----------------------------
This is my server.log that showed this ?
[2016-12-01 11:38:55,402] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 2 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:38:58,366] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:39:01,551] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:48:55,400] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:48:58,367] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:49:01,550] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:58:55,399] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:58:58,368] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 11:59:01,550] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:08:55,400] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:08:58,366] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:09:01,551] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:18:55,400] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:18:58,366] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:19:01,551] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:28:55,401] INFO [Group Metadata Manager on Broker 0]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:28:58,368] INFO [Group Metadata Manager on Broker 1]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2016-12-01 12:29:01,550] INFO [Group Metadata Manager on Broker 2]: Removed 0
expired offsets in 0 milliseconds. (kafka.coordinator.GroupMetadataManager)
> The kafka broker cannot delete the old log files after the configured time
> --------------------------------------------------------------------------
>
> Key: KAFKA-1194
> URL: https://issues.apache.org/jira/browse/KAFKA-1194
> Project: Kafka
> Issue Type: Bug
> Components: log
> Affects Versions: 0.8.1
> Environment: window
> Reporter: Tao Qin
> Assignee: Jay Kreps
> Labels: features, patch
> Fix For: 0.10.2.0
>
> Attachments: KAFKA-1194.patch, Untitled.jpg, kafka-1194-v1.patch,
> kafka-1194-v2.patch, screenshot-1.png
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> We tested it in windows environment, and set the log.retention.hours to 24
> hours.
> # The minimum age of a log file to be eligible for deletion
> log.retention.hours=24
> After several days, the kafka broker still cannot delete the old log file.
> And we get the following exceptions:
> [2013-12-19 01:57:38,528] ERROR Uncaught exception in scheduled task
> 'kafka-log-retention' (kafka.utils.KafkaScheduler)
> kafka.common.KafkaStorageException: Failed to change the log file suffix from
> to .deleted for log segment 1516723
> at kafka.log.LogSegment.changeFileSuffixes(LogSegment.scala:249)
> at kafka.log.Log.kafka$log$Log$$asyncDeleteSegment(Log.scala:638)
> at kafka.log.Log.kafka$log$Log$$deleteSegment(Log.scala:629)
> at kafka.log.Log$$anonfun$deleteOldSegments$1.apply(Log.scala:418)
> at kafka.log.Log$$anonfun$deleteOldSegments$1.apply(Log.scala:418)
> at
> scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
> at scala.collection.immutable.List.foreach(List.scala:76)
> at kafka.log.Log.deleteOldSegments(Log.scala:418)
> at
> kafka.log.LogManager.kafka$log$LogManager$$cleanupExpiredSegments(LogManager.scala:284)
> at
> kafka.log.LogManager$$anonfun$cleanupLogs$3.apply(LogManager.scala:316)
> at
> kafka.log.LogManager$$anonfun$cleanupLogs$3.apply(LogManager.scala:314)
> at
> scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:743)
> at scala.collection.Iterator$class.foreach(Iterator.scala:772)
> at
> scala.collection.JavaConversions$JIteratorWrapper.foreach(JavaConversions.scala:573)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:73)
> at
> scala.collection.JavaConversions$JListWrapper.foreach(JavaConversions.scala:615)
> at
> scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:742)
> at kafka.log.LogManager.cleanupLogs(LogManager.scala:314)
> at
> kafka.log.LogManager$$anonfun$startup$1.apply$mcV$sp(LogManager.scala:143)
> at kafka.utils.KafkaScheduler$$anon$1.run(KafkaScheduler.scala:100)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> 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:724)
> I think this error happens because kafka tries to rename the log file when it
> is still opened. So we should close the file first before rename.
> The index file uses a special data structure, the MappedByteBuffer. Javadoc
> describes it as:
> A mapped byte buffer and the file mapping that it represents remain valid
> until the buffer itself is garbage-collected.
> Fortunately, I find a forceUnmap function in kafka code, and perhaps it can
> be used to free the MappedByteBuffer.
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