我正在尝试基于apache网站上的设置以伪分布式模式运行HBase，但是我无法正确配置hbase.root目录。
这是我的配置文件的样子：
在Hadoop目录中：
CONF /芯-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</value>
</property>
</configuration>
CONF / HDFS-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.support.append</name>
<value>true</value>
</property>
<property>
<name>dfs.datanode.max.xcievers</name>
<value>4096</value>
</property>
</configuration>
CONF / mapred-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</value>
</property>
</configuration>
在我的HBase目录中
HBase的-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
/**
* Copyright 2010 The Apache Software Foundation
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-->
<configuration>
<property>
<name>dfs.support.append</name>
<value>true</value>
</property>
<property>
<name>hbase.rootdir</name>
<value>hdfs://localhost:9000/hbase</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>localhost</value>
</property>
</configuration>
当我运行start-hbase.sh脚本时，它说它启动了zookeeper，hbase主服务器和区域服务器，我可以登录到它们。然后我可以访问hbase shell，但我无法创建表或任何东西。我尝试使用我的网络浏览器连接到主状态ui，但它无法连接。起初我以为是因为我在亚马逊实例上运行它并且端口9000未被授予许可，但我发现它是。端口50030和50070被授予相同的权限，我可以从中访问作业跟踪器和名称节点。我检查了日志，发现了这个错误：
2013-08-05 18:00:35,613 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: localhost/127.0.0.1:9000. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2013-08-05 18:00:35,616 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting shutdown.
java.net.ConnectException: Call to localhost/127.0.0.1:9000 failed on connection exception: java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:1136)
at org.apache.hadoop.ipc.Client.call(Client.java:1112)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
at com.sun.proxy.$Proxy10.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:135)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:276)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:241)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1411)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1429)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)
at org.apache.hadoop.hbase.util.FSUtils.getRootDir(FSUtils.java:667)
at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:112)
at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:560)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:419)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:453)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:579)
at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:202)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1243)
at org.apache.hadoop.ipc.Client.call(Client.java:1087)
... 17 more
您可以看到它正在尝试访问localhost / 127.0.0.1：9000，这显然是错误的。：
在连接异常
上调用localhost / 127.0.0.1:9000失败
这是我的/ etc / hosts文件的样子：
127.0.0.1 localhost
# 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
ff02::3 ip6-allhosts
同时 用实例的公共DNS替换localhost也不起作用
答案 0 :(得分：1)
首先提出的建议很少。您实际上不需要在core-site.xml和 dfs.support.append 中放置 dfs.replication ， mapred.job.tracker 在hbase-site.xml文件中。这不是必需的。
请确保NN正常运行并且不在安全模式下。此外，最好关闭IPv6并在hbase-site.xml文件中添加 hbase.zookeeper.property.dataDir 和 hbase.zookeeper.property.clientPort 并设置export < hbase-env.sh中的strong> HBASE_MANAGES_ZK 为 true 。更改配置文件后重启HBase。