Zookeeper報錯 len4807928 is out of range！

因為某些誤操作，導致znode節點上的資料太大，超過長度，這時候要ls或者rmr就會報錯

大概像下圖：

Packet len4807928 is out of range

在外網有這樣的文章：

https://stackoverflow.com/questions/10249579/zookeeper-cli-failing-ioexception-packet-len12343123123-is-out-of-range

這是zookeeper的源碼：

707         void readLength() throws IOException {708             int len = incomingBuffer.getInt();709             if (len < 0 || len >= packetLen) {710                 throw new IOException("Packet len" + len + " is out of range!");711             }712             incomingBuffer = ByteBuffer.allocate(len);713         }

並且在外網的文章當中有解決方案：

7 down vote

I was able to work around this by increasing the max size of my listing call. I added the "-Djute.maxbuffer=50111000" to my zkCli.sh script so that it started the client using the following line: $JAVA "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \ "-Djute.maxbuffer=49107800" -cp "$CLASSPATH" $CLIENT_JVMFLAGS $JVMFLAGS \ org.apache.zookeeper.ZooKeeperMain "$@" I was then able to list & use rmr /big/node

說的是要在你的zkCli.sh裡面添加上

 "-Djute.maxbuffer=50111000"  這一行，相當於增加他的最大容量，然後再去刪除或者ls查看你的節點就可以了。

7 down vote

I was able to work around this by increasing the max size of my listing call. I added the "-Djute.maxbuffer=50111000" to my zkCli.sh script so that it started the client using the following line: $JAVA "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \ "-Djute.maxbuffer=49107800" -cp "$CLASSPATH" $CLIENT_JVMFLAGS $JVMFLAGS \ org.apache.zookeeper.ZooKeeperMain "$@" I was then able to list & use rmr /big/node