Hbase常见异常

1、 HBase is able to connect to ZooKeeper but the connection closes immediately



hbase(main):001:0> list



TABLE                                                                           



ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is able to connect to ZooKeeper but the connection closes immediately. This could be a sign that the server has too many connections (30 is the default). Consider inspecting your ZK server logs
for that error and then make sure you are reusing HBaseConfiguration as often as you can. See HTable's javadoc for more information.



Here is some help for this command:

List all tables in hbase. Optional regular expression parameter could

be used to filter the output. Examples:

  hbase> list

  hbase> list 'abc.*'



hbase(main):002:0> exit



解决方法:

修改/etc/hosts:

#127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

#::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

将原有的前2行去掉。

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