Kafka failing with: / by zero at kafka.network.Acceptor.run(SocketServer.scala:354)

Question

I am trying to run Kafka on windows (in azure cloud). But it fails like every 2 days with hundred of / by zero and one IO exceptions below

[2018-06-12 09:00:23,457] ERROR Error while accepting connection (kafka.network.Acceptor)
java.lang.ArithmeticException: / by zero
at kafka.network.Acceptor.run(SocketServer.scala:354)
at java.lang.Thread.run(Unknown Source)


[2018-06-12 09:00:23,457] ERROR Error while accepting connection 
(kafka.network.Acceptor)
 java.lang.ArithmeticException: / by zero
at kafka.network.Acceptor.run(SocketServer.scala:354)
at java.lang.Thread.run(Unknown Source)


[2018-06-12 09:00:23,457] ERROR Error while accepting connection (kafka.network.Acceptor)
java.lang.ArithmeticException: / by zero
at kafka.network.Acceptor.run(SocketServer.scala:354)
at java.lang.Thread.run(Unknown Source)

...........
...........


[2018-06-12 09:00:23,457] ERROR Failed to clean up log for __consumer_offsets-41 in dir C:\kafka\logs due to IOException (kafka.server.LogDirFailureChannel)
java.nio.file.FileSystemException: C:\kafka\logs\__consumer_offsets-41\00000000000000000000.log.cleaned: The process cannot access the file because it is being used by another process.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.implDelete(Unknown Source)
at sun.nio.fs.AbstractFileSystemProvider.deleteIfExists(Unknown Source)
at java.nio.file.Files.deleteIfExists(Unknown Source)
at kafka.log.Cleaner.deleteCleanedFileIfExists$1(LogCleaner.scala:488)
at kafka.log.Cleaner.cleanSegments(LogCleaner.scala:493)
at kafka.log.Cleaner$$anonfun$doClean$4.apply(LogCleaner.scala:462)
at kafka.log.Cleaner$$anonfun$doClean$4.apply(LogCleaner.scala:461)
at scala.collection.immutable.List.foreach(List.scala:392)
at kafka.log.Cleaner.doClean(LogCleaner.scala:461)
at kafka.log.Cleaner.clean(LogCleaner.scala:438)
at kafka.log.LogCleaner$CleanerThread.cleanOrSleep(LogCleaner.scala:305)
at kafka.log.LogCleaner$CleanerThread.doWork(LogCleaner.scala:291)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:82)

Removing all the logs and restarting Kafka resolves the issue (for 1-2 days)

Config:

• advertised.host.name = null
• advertised.listeners = null
• advertised.port = null
• alter.config.policy.class.name = null
• alter.log.dirs.replication.quota.window.num = 11
• alter.log.dirs.replication.quota.window.size.seconds = 1
• authorizer.class.name =
• auto.create.topics.enable = true
• auto.leader.rebalance.enable = true
• background.threads = 10
• broker.id = 0
• broker.id.generation.enable = true
• broker.rack = null
• compression.type = producer
• connections.max.idle.ms = 600000
• controlled.shutdown.enable = true
• controlled.shutdown.max.retries = 3
• controlled.shutdown.retry.backoff.ms = 5000
• controller.socket.timeout.ms = 30000
• create.topic.policy.class.name = null
• default.replication.factor = 1
• delegation.token.expiry.check.interval.ms = 3600000
• delegation.token.expiry.time.ms = 86400000
• delegation.token.master.key = null
• delegation.token.max.lifetime.ms = 604800000
• delete.records.purgatory.purge.interval.requests = 1
• delete.topic.enable = true
• fetch.purgatory.purge.interval.requests = 1000
• group.initial.rebalance.delay.ms = 0
• group.max.session.timeout.ms = 300000
• group.min.session.timeout.ms = 6000
• host.name =
• inter.broker.listener.name = null
• inter.broker.protocol.version = 1.1-IV0
• leader.imbalance.check.interval.seconds = 300
• leader.imbalance.per.broker.percentage = 10
• listener.security.protocol.map = PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL
• listeners = null
• log.cleaner.backoff.ms = 15000
• log.cleaner.dedupe.buffer.size = 134217728
• log.cleaner.delete.retention.ms = 86400000
• log.cleaner.enable = true
• log.cleaner.io.buffer.load.factor = 0.9
• log.cleaner.io.buffer.size = 524288
• log.cleaner.io.max.bytes.per.second = 1.7976931348623157E308
• log.cleaner.min.cleanable.ratio = 0.5
• log.cleaner.min.compaction.lag.ms = 0
• log.cleaner.threads = 1
• log.cleanup.policy = [delete]
• log.dir = /tmp/kafka-logs
• log.dirs = C:/kafka/logs
• log.flush.interval.messages = 9223372036854775807
• log.flush.interval.ms = null
• log.flush.offset.checkpoint.interval.ms = 60000
• log.flush.scheduler.interval.ms = 9223372036854775807
• log.flush.start.offset.checkpoint.interval.ms = 60000
• log.index.interval.bytes = 4096
• log.index.size.max.bytes = 10485760
• log.message.format.version = 1.1-IV0
• log.message.timestamp.difference.max.ms = 9223372036854775807
• log.message.timestamp.type = CreateTime
• log.preallocate = false
• log.retention.bytes = -1
• log.retention.check.interval.ms = 300000
• log.retention.hours = 72
• log.retention.minutes = null
• log.retention.ms = null
• log.roll.hours = 168
• log.roll.jitter.hours = 0
• log.roll.jitter.ms = null
• log.roll.ms = null
• log.segment.bytes = 1073741824
• log.segment.delete.delay.ms = 60000
• max.connections.per.ip = 2147483647
• max.connections.per.ip.overrides =
• max.incremental.fetch.session.cache.slots = 1000
• message.max.bytes = 1000012
• metric.reporters = []
• metrics.num.samples = 2
• metrics.recording.level = INFO
• metrics.sample.window.ms = 30000
• min.insync.replicas = 1
• num.io.threads = 12
• num.network.threads = 64
• num.partitions = 1
• num.recovery.threads.per.data.dir = 1
• num.replica.alter.log.dirs.threads = null
• num.replica.fetchers = 1
• offset.metadata.max.bytes = 4096
• offsets.commit.required.acks = -1
• offsets.commit.timeout.ms = 5000
• offsets.load.buffer.size = 5242880
• offsets.retention.check.interval.ms = 600000
• offsets.retention.minutes = 1440
• offsets.topic.compression.codec = 0
• offsets.topic.num.partitions = 50
• offsets.topic.replication.factor = 1
• offsets.topic.segment.bytes = 104857600
• password.encoder.cipher.algorithm = AES/CBC/PKCS5Padding
• password.encoder.iterations = 4096
• password.encoder.key.length = 128
• password.encoder.keyfactory.algorithm = null
• password.encoder.old.secret = null
• password.encoder.secret = null
• port = 9092
• principal.builder.class = null
• producer.purgatory.purge.interval.requests = 1000
• queued.max.request.bytes = -1
• queued.max.requests = 500
• quota.consumer.default = 9223372036854775807
• quota.producer.default = 9223372036854775807
• quota.window.num = 11
• quota.window.size.seconds = 1
• replica.fetch.backoff.ms = 1000
• replica.fetch.max.bytes = 1048576
• replica.fetch.min.bytes = 1
• replica.fetch.response.max.bytes = 10485760
• replica.fetch.wait.max.ms = 500
• replica.high.watermark.checkpoint.interval.ms = 5000
• replica.lag.time.max.ms = 10000
• replica.socket.receive.buffer.bytes = 65536
• replica.socket.timeout.ms = 30000
• replication.quota.window.num = 11
• replication.quota.window.size.seconds = 1
• request.timeout.ms = 30000
• reserved.broker.max.id = 1000
• sasl.enabled.mechanisms = [GSSAPI]
• sasl.jaas.config = null
• sasl.kerberos.kinit.cmd = /usr/bin/kinit
• sasl.kerberos.min.time.before.relogin = 60000
• sasl.kerberos.principal.to.local.rules = [DEFAULT]
• sasl.kerberos.service.name = null
• sasl.kerberos.ticket.renew.jitter = 0.05
• sasl.kerberos.ticket.renew.window.factor = 0.8
• sasl.mechanism.inter.broker.protocol = GSSAPI
• security.inter.broker.protocol = PLAINTEXT
• socket.receive.buffer.bytes = 102400
• socket.request.max.bytes = 104857600
• socket.send.buffer.bytes = 102400
• ssl.cipher.suites = []
• ssl.client.auth = none
• ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
• ssl.endpoint.identification.algorithm = null
• ssl.key.password = null
• ssl.keymanager.algorithm = SunX509
• ssl.keystore.location = null
• ssl.keystore.password = null
• ssl.keystore.type = JKS
• ssl.protocol = TLS
• ssl.provider = null
• ssl.secure.random.implementation = null
• ssl.trustmanager.algorithm = PKIX
• ssl.truststore.location = null
• ssl.truststore.password = null
• ssl.truststore.type = JKS
• transaction.abort.timed.out.transaction.cleanup.interval.ms = 60000
• transaction.max.timeout.ms = 900000
• transaction.remove.expired.transaction.cleanup.interval.ms = 3600000
• transaction.state.log.load.buffer.size = 5242880
• transaction.state.log.min.isr = 1
• transaction.state.log.num.partitions = 50
• transaction.state.log.replication.factor = 1
• transaction.state.log.segment.bytes = 104857600
• transactional.id.expiration.ms = 604800000
• unclean.leader.election.enable = false
• zookeeper.connect = localhost:2181
• zookeeper.connection.timeout.ms = 6000
• zookeeper.max.in.flight.requests = 10
• zookeeper.session.timeout.ms = 6000
• zookeeper.set.acl = false
• zookeeper.sync.time.ms = 2000

Answer 1

Depending on the version of windows you're running, Defender might be enabled by default. If so, Try adding an exclusion on the c:\kafka directory.