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https://issues.apache.org/jira/browse/KAFKA-7156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vahid Hashemian resolved KAFKA-7156.
------------------------------------
Resolution: Duplicate
> Deleting topics with long names can bring all brokers to unrecoverable state
> ----------------------------------------------------------------------------
>
> Key: KAFKA-7156
> URL: https://issues.apache.org/jira/browse/KAFKA-7156
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 1.1.0
> Reporter: Petr Pchelko
> Priority: Major
>
> Kafka limit for the topic name is 249 symbols, so creating a topic with a
> name 248 symbol long is possible. However, when deleting the topic, Kafka
> tries to rename the data directory for the topic to add some hash and
> `-deleted` in the data directory, so that the resulting file name exceeds the
> 255 symbol file name limit in most of the Unix file systems. This provokes a
> java.nio.file.FileSystemException which in turn immediately shuts down all
> the brokers. Further attemts to restart the broker fail with the same
> exception. The only way to resurrect the cluster is to manually delete the
> affected topic from zookeeper and from the disk on all the broker machines.
> Steps to reproduce:
> (Note: delete.topic.enable=true must be set in the config)
> {code:java}
> > kafka-topics.sh --zookeeper localhost:2181 --create --topic
> > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> > --partitions 1 --replication-factor 1
> > kafka-topics.sh --zookeeper localhost:2181 --delete --topic
> > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> {code}
> After these 2 commands executed all the brokers where this topic is
> replicated immediately shut down with the following logs:
> {code:java}
> ERROR Error while renaming dir for
> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-0
> in log dir /tmp/kafka-logs (kafka.server.LogDirFailureChannel)
> java.nio.file.FileSystemException:
> /tmp/kafka-logs/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-0
> ->
> /tmp/kafka-logs/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-0.093fd1e1728f438ea990cbad8a514b9f-delete:
> File name too long
> at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
> at sun.nio.fs.UnixCopyFile.move(UnixCopyFile.java:457)
> at sun.nio.fs.UnixFileSystemProvider.move(UnixFileSystemProvider.java:262)
> at java.nio.file.Files.move(Files.java:1395)
> ...
> Suppressed: java.nio.file.FileSystemException:
> /tmp/kafka-logs/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-0
> ->
> /tmp/kafka-logs/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-0.093fd1e1728f438ea990cbad8a514b9f-delete:
> File name too long
> at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
> at sun.nio.fs.UnixCopyFile.move(UnixCopyFile.java:396)
> at sun.nio.fs.UnixFileSystemProvider.move(UnixFileSystemProvider.java:262)
> at java.nio.file.Files.move(Files.java:1395)
> at org.apache.kafka.common.utils.Utils.atomicMoveWithFallback(Utils.java:694)
> ... 23 more
> [2018-07-12 13:34:45,847] INFO [ReplicaManager broker=0] Stopping serving
> replicas in dir /tmp/kafka-logs (kafka.server.ReplicaManager)
> [2018-07-12 13:34:45,848] INFO [ReplicaFetcherManager on broker 0] Removed
> fetcher for partitions (kafka.server.ReplicaFetcherManager)
> [2018-07-12 13:34:45,849] INFO [ReplicaAlterLogDirsManager on broker 0]
> Removed fetcher for partitions (kafka.server.ReplicaAlterLogDirsManager)
> [2018-07-12 13:34:45,851] INFO [ReplicaManager broker=0] Broker 0 stopped
> fetcher for partitions and stopped moving logs for partitions because they
> are in the failed log directory /tmp/kafka-logs. (kafka.server.ReplicaManager)
> [2018-07-12 13:34:45,851] INFO Stopping serving logs in dir /tmp/kafka-logs
> (kafka.log.LogManager)
> [2018-07-12 13:34:45,854] ERROR Shutdown broker because all log dirs in
> /tmp/kafka-logs have failed (kafka.log.LogManager)
> [2018-07-12 13:34:46,264] WARN Exception causing close of session
> 0x1648e0b3ec80004 due to java.io.IOException: Connection reset by peer
> (org.apache.zookeeper.server.NIOServerCnxn)
> [2018-07-12 13:34:46,264] INFO Closed socket connection for client
> /0:0:0:0:0:0:0:1:63972 which had sessionid 0x1648e0b3ec80004
> (org.apache.zookeeper.server.NIOServerCnxn)
> {code}
> Note, that
> {code:java}
> [2018-07-12 13:34:45,854] ERROR Shutdown broker because all log dirs in
> /tmp/kafka-logs have failed (kafka.log.LogManager){code}
> is happening regardless whether the topic with a long name is the only one on
> the broker or not.
> Further attempts to restart the brokers fail with the same error until all
> the mentions of the deleted topic is removed from Zookeeper and the files are
> removed from the data directories on all the brokers.
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