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hadoop - Hbase 区域服务器无法与 HMaster 通信

转载 作者:可可西里 更新时间:2023-11-01 14:59:17 27 4
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我无法在分布式模式下设置 hbase。当我在一台机器上设置它时它工作正常(独立模式)。我的 Zookeeper、hmaster 和区域服务器正常启动。
但是当我去 hbase shell 并寻找状态时。它显示了 0 个区域服务器。我附上了我的区域服务器日志。加上我的主机(namenode)和从机(datanode)的主机文件。我已经尝试了 stackoverflow 上提供的所有用于更改主机文件的 P&C,但对我没有用。

       2013-06-24 15:03:45,844 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server naresh-pc/192.168.0.108:2181. Will not attempt to authenticate using SASL (unknown error)
2013-06-24 15:03:45,845 WARN org.apache.zookeeper.ClientCnxn: Session 0x13f75807d960001 for server null, unexpected error, closing socket connection and attempting to reconnect

java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)

Slave /etc/hosts :

127.0.0.1 localhost
127.0.1.1 ubuntu-pc
#ip for hadoop
192.168.0.108 master
192.168.0.126 slave

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Master /etc/hosts :

127.0.0.1 localhost
127.0.1.1 naresh-pc
#ip for hadoop
192.168.0.108 master
192.168.0.126 slave


# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

hbase-site.xml :

  <configuration>  
<property>
<name>hbase.master</name>
<value>master:60000</value>
<description>The host and port that the HBase master runs at.
A value of 'local' runs the master and a regionserver
in a single process.
</description>
</property>

<property>
<name>hbase.rootdir</name>
<value>hdfs://master:54310/hbase</value>
<description>The directory shared by region servers.</description>
</property>


<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
<description>The mode the cluster will be in. Possible values are
false: standalone and pseudo-distributed setups with managed
Zookeeper true: fully-distributed with unmanaged Zookeeper
Quorum (see hbase-env.sh)
</description>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
<description>Property from ZooKeeper's config zoo.cfg.
The port at which the clients will connect.
</description>
</property>

<property>
<name>hbase.zookeeper.quorum</name>
<value>master</value>
<description>Comma separated list of servers in the ZooKeeper Quorum.
For example,
"host1.mydomain.com,host2.mydomain.com".
By default this is set to localhost for local and
pseudo-distributed modes of operation. For a
fully-distributed setup, this should be set to a full
list of ZooKeeper quorum servers. If
HBASE_MANAGES_ZK is set in hbase-env.sh
this is the list of servers which we will start/stop
ZooKeeper on.
</description>
</property>
</configuration>

Zookeeper log:

2013-06-28 18:22:26,781 WARN org.apache.zookeeper.server.NIOServerCnxn: caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x13f8ac0b91b0002, likely client has closed socket
at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:220)
at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208)
at java.lang.Thread.run(Thread.java:722)
2013-06-28 18:22:26,858 INFO org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection for client /192.168.0.108:57447 which had sessionid 0x13f8ac0b91b0002
2013-06-28 18:25:21,001 INFO org.apache.zookeeper.server.ZooKeeperServer: Expiring session 0x13f8ac0b91b0002, timeout of 180000ms exceeded
2013-06-28 18:25:21,002 INFO org.apache.zookeeper.server.PrepRequestProcessor: Processed session termination for sessionid: 0x13f8ac0b91b0002

Master Log:
2013-06-28 18:22:41,932 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting for region servers count to settle; currently checked in 0, slept for 1502022 ms
2013-06-28 18:22:43,457 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting for region servers count to settle; currently checked in 0, slept for 1503547 ms

最佳答案

从主机文件中删除 127.0.1.1 并关闭 IPV6。这应该可以解决问题。

关于hadoop - Hbase 区域服务器无法与 HMaster 通信,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17317824/

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