Getting Lots of "Unreasonable Length" exceptions on Zk when I start my Kafka broker.

[Sharat Joshi]

Hi Experts,

I have just downloaded latest Confluent Kafka 2.0.1 and started playing with it setting up a Single broker instance, a Zk and a Schema instance.

When I start Zk its fine, BUT when I start my kafka server I get a lot of these...

[2016-05-12 11:16:23,343] INFO Accepted socket connection from /192.168.0.9:37379 (org.apache.zookeeper.server.NIOServerCnxnFactory)

[2016-05-12 11:16:23,343] WARN Exception causing close of session 0x0 due to java.io.IOException: Unreasonable length = 140473187 (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:23,344] INFO Closed socket connection for client /192.168.0.9:37379 (no session established for client) (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:23,645] INFO Accepted socket connection from /192.168.0.9:37380 (org.apache.zookeeper.server.NIOServerCnxnFactory)

[2016-05-12 11:16:23,646] WARN Exception causing close of session 0x0 due to java.io.IOException: Unreasonable length = 140473187 (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:23,646] INFO Closed socket connection for client /192.168.0.9:37380 (no session established for client) (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:23,949] INFO Accepted socket connection from /192.168.0.9:37381 (org.apache.zookeeper.server.NIOServerCnxnFactory)

[2016-05-12 11:16:23,950] WARN Exception causing close of session 0x0 due to java.io.IOException: Unreasonable length = 140473187 (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:23,950] INFO Closed socket connection for client /192.168.0.9:37381 (no session established for client) (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:24,252] INFO Accepted socket connection from /192.168.0.9:37382 (org.apache.zookeeper.server.NIOServerCnxnFactory)

[2016-05-12 11:16:24,253] WARN Exception causing close of session 0x0 due to java.io.IOException: Unreasonable length = 140473187 (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:24,253] INFO Closed socket connection for client /192.168.0.9:37382 (no session established for client) (org.apache.zookeeper.server.NIOServerCnxn)

[2016-05-12 11:16:24,404] INFO Processed session termination for sessionid: 0x154a627b3d00006 (org.apache.zookeeper.server.PrepRequestProcessor)

[2016-05-12 11:16:24,419] INFO Closed socket connection for client /192.168.0.9:37236 which had sessionid 0x154a627b3d00006 (org.apache.zookeeper.server.NIOServerCnxn)

It just goes On and On and On...

I am using basic defaults on Zk, Server and Schema settings...

Zk Settings...

dataDir=/tmp/zookeeper

clientPort=2181

maxClientCnxns=100

Server Settings...

broker.id=0

listeners=PLAINTEXT://:9092

advertised.host.name=192.168.0.9

advertised.port=2181

num.network.threads=3

num.io.threads=8

socket.send.buffer.bytes=102400

socket.receive.buffer.bytes=102400

log.dirs=/tmp/kafka-logs

num.partitions=1

num.recovery.threads.per.data.dir=1

log.retention.hours=168

log.segment.bytes=1073741824

log.retention.check.interval.ms=300000

zookeeper.connect=192.168.0.9:2181

zookeeper.connection.timeout.ms=6000

Schema Registry Settings...

port=8081

kafkastore.connection.url=192.168.0.9:2181

kafkastore.topic=_schemas

debug=false

PLEASE Help me get around this BASIC error.

[Sharat Joshi]

Hi Experts...

Please HELP
Any Ideas as to why I keep getting the "Unreasonable Length" Exception when my Kafka Server starts

[Dustin Cote]

Hi Sharat,

The message is indicating you have a very large znode being passed from zookeeper to Kafka. It looks like you have something not created by Kafka sitting in zookeeper. Can you start with a new zookeeper instance with empty data directories to see if that can unblock you?

--
You received this message because you are subscribed to the Google Groups "Confluent Platform" group.
To unsubscribe from this group and stop receiving emails from it, send an email to confluent-platf...@googlegroups.com.
To post to this group, send email to confluent...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/confluent-platform/a000e16f-c1a9-46cd-b008-fff6355fb273%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[MR]

Hello Sharat,

Were you able to resolve this issue? I am getting same on my Kafka Cluster.

Thanks!!

To unsubscribe from this group and stop receiving emails from it, send an email to confluent-platform+unsub...@googlegroups.com.

[alkesh]

Hi Sharat,

Similar exceptions come if you're trying to use zookeeper instance or ports instead of kafka broker instance/ports while starting producer/consumer or creating a topic.