[jira] [Created] (KAFKA-7401) Broker fails to start when recovering a segment from before the log start offset

["Bob Barrett (JIRA)" <ji...@apache.org>]

Bob Barrett created KAFKA-7401:
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             Summary: Broker fails to start when recovering a segment from before the log start offset
                 Key: KAFKA-7401
                 URL: https://issues.apache.org/jira/browse/KAFKA-7401
             Project: Kafka
          Issue Type: Bug
          Components: log
    Affects Versions: 2.0.0, 1.1.1, 1.1.0
            Reporter: Bob Barrett


If a segment needs to be recovered (for example, because of a missing index file or uncompleted swap operation) and its base offset is less than the log start offset, the broker will crash with the following error:

{{Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)}}
{{ java.lang.IllegalArgumentException: inconsistent range}}
{{ at java.util.concurrent.ConcurrentSkipListMap$SubMap.<init>(Unknown Source)}}
{{ at java.util.concurrent.ConcurrentSkipListMap.subMap(Unknown Source)}}
{{ at java.util.concurrent.ConcurrentSkipListMap.subMap(Unknown Source)}}
{{ at kafka.log.Log$$anonfun$12.apply(Log.scala:1579)}}
{{ at kafka.log.Log$$anonfun$12.apply(Log.scala:1578)}}
{{ at scala.Option.map(Option.scala:146)}}
{{ at kafka.log.Log.logSegments(Log.scala:1578)}}
{{ at kafka.log.Log.kafka$log$Log$$recoverSegment(Log.scala:358)}}
{{ at kafka.log.Log$$anonfun$completeSwapOperations$1.apply(Log.scala:389)}}
{{ at kafka.log.Log$$anonfun$completeSwapOperations$1.apply(Log.scala:380)}}
{{ at scala.collection.immutable.Set$Set1.foreach(Set.scala:94)}}
{{ at kafka.log.Log.completeSwapOperations(Log.scala:380)}}
{{ at kafka.log.Log.loadSegments(Log.scala:408)}}
{{ at kafka.log.Log.<init>(Log.scala:216)}}
{{ at kafka.log.Log$.apply(Log.scala:1765)}}
{{ at kafka.log.LogManager.kafka$log$LogManager$$loadLog(LogManager.scala:260)}}
{{ at kafka.log.LogManager$$anonfun$loadLogs$2$$anonfun$11$$anonfun$apply$15$$anonfun$apply$2.apply$mcV$sp(LogManager.scala:340)}}
{{ at kafka.utils.CoreUtils$$anon$1.run(CoreUtils.scala:62)}}
{{ at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)}}
{{ at java.util.concurrent.FutureTask.run(Unknown Source)}}
{{ at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)}}
{{ at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)}}
{{ at java.lang.Thread.run(Unknown Source)}}

Since these segments are outside the log range, we should delete them, or at least not block broker startup because of them.



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