[jira] [Created] (KAFKA-14998) Kafka server start fails with the following error java.lang.NumberFormatException: For input string: "a"

["Nikilesh (Jira)" <ji...@apache.org>]

Nikilesh created KAFKA-14998:
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             Summary: Kafka server start fails with the following error java.lang.NumberFormatException: For input string: "a"
                 Key: KAFKA-14998
                 URL: https://issues.apache.org/jira/browse/KAFKA-14998
             Project: Kafka
          Issue Type: Bug
          Components: core
    Affects Versions: 2.5.1
            Reporter: Nikilesh


Kafka fails to restart because of the following error. The Kafka cluster was in a healthy state all along in a kubernetes environment and this issue started happening as part of upgrade to k8s cluster and no changes to kafka as such in terms of configuration.

 

 
{code:java}
[2023-05-16 02:29:32,159] ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
java.lang.NumberFormatException: For input string: "a"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:589)
at java.lang.Long.parseLong(Long.java:631)
at scala.collection.immutable.StringLike.toLong(StringLike.scala:309)
at scala.collection.immutable.StringLike.toLong$(StringLike.scala:309)
at scala.collection.immutable.StringOps.toLong(StringOps.scala:33)
at kafka.log.Log$.offsetFromFileName(Log.scala:2568)
at kafka.log.Log$.offsetFromFile(Log.scala:2572)
at kafka.log.Log.$anonfun$loadSegmentFiles$3(Log.scala:597)
at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:877)
at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:198)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:876)
at kafka.log.Log.loadSegmentFiles(Log.scala:586)
at kafka.log.Log.$anonfun$loadSegments$1(Log.scala:697)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at kafka.log.Log.retryOnOffsetOverflow(Log.scala:2329)
at kafka.log.Log.loadSegments(Log.scala:691)
at kafka.log.Log.<init>(Log.scala:297)
at kafka.log.Log$.apply(Log.scala:2463)
at kafka.log.LogManager.loadLog(LogManager.scala:272)
at kafka.log.LogManager.$anonfun$loadLogs$12(LogManager.scala:342)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
{code}
 



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