zookeeper + 无法从客户端会话 ID 中读取额外数据 [英] zookeeper + Unable to read additional data from client session id

问题描述

我们有带有 3 台 kafka 机器和 3 个 zookeeper 服务器的 hadoop 集群

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

hadoop 版本 - 2.6.4 (HORTONWORKS)

hadoop version - 2.6.4 ( HORTONWORKS )

在zookeeper日志(/var/log/zookper )下

under zookeeper logs ( /var/log/zookper )

我们看到了数百万条警告消息，例如:

we saw a millions 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)

此消息的含义是什么:

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

真正的问题是关于 kafka 机器

the real problem is about the kafka machines

• 我们遇到了领导者不平衡的问题，Kafka 主题分区最终与领导者 -1 一起获得

推荐答案

尝试让客户端重试.它解决了我的问题.不知何故，我将重试设置为零.

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

例如:hbase.client.retries.number

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