'Unable to read additional data from client session id

We have hadoop cluster with 3 kafka machines and 3 zookeeper servers

hadoop version - 2.6.4 ( HORTONWORKS )

under zookeeper logs ( /var/log/zookper )

we saw a million WARN messages like:

2019-06-26 10:48:45,675 [myid:1] - WARN  [NIOServerCxn.Factory 0.000.0.0/0.0.0.0:2181:NIOServerCnxn@357] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x16b8e15a80ca681, likely client has closed socket
               at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:230)
               at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208)
               at java.lang.Thread.run(Thread.java:745)

What is the meaning of these messages:

    caught end of stream exception EndOfStreamException
    Unable to read additional data from client sessionid

The real problem is about the kafka machines. We faced the problem about leaders are not balanced and Kafka topics partitions finally get with leader -1

Solution 1:^[1]

Try to have client retries. It solved my issue. Somehow I had retry set to zero.

For example: hbase.client.retries.number

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Source: Stack Overflow

Solution	Source
Solution 1	Ankit Bhatnagar

'Unable to read additional data from client session id

Solution 1:[1]

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Solution 1:^[1]