hadoop - Hbase master 无法启动

Question

我正在尝试启动 hbase master 但出现以下错误:

Could not start ZK at requested port of 2181.  ZK was started at port: 2182.  Aborting as clients (e.g. shell) will not be able to find this ZK quorum.
13/07/14 06:33:23 ERROR master.HMasterCommandLine: Failed to start master
java.io.IOException: Could not start ZK at requested port of 2181.  ZK was started at port: 2182.  Aborting as clients (e.g. shell) will not be able to find this ZK quorum.
    at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:134)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:103)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
    at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1684)
13/07/14 06:33:23 INFO server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:46283 (no session established for client)

hbase-site.xml

<configuration> 
  <!-- Changing the default port for REST since it conflicts with yarn nodemanager --> 
  <property> 
    <name>hbase.rest.port</name> 
    <value>8070</value> 
    <description>The port for the HBase REST server.</description> 
  </property> 
  <property> 
    <name>hbase.rootdir</name> 
    <value>hdfs://localhost:8020/hbase</value> 
  </property> 
</configuration>

Answer 1

似乎其他东西已经在使用端口 2181，或者您之前可能已经在此端口上启动了另一个 ZK 实例。停止该进程或更改其端口。如果那不可能，则在 hbase-site.xml 中将 hbase.zookeeper.property.clientPort 设置为 2182。

请注意，HBase 需要 ZK 的服务，即使是在独立模式下，因此您应该确保它运行正常。

HTH