我正在尝试建立一个包含主节点(包含namenode、secondarynamenode和jobtracker)和两个其他节点(包含datanode和tasktracker)的Cloudera Hadoop集群。Cloudera版本为4.6,操作系统为Ubuntu Precise x64。此外,该集群是从AWS实例创建的。已设置ssh无密码登录,并安装了Oracle-7 Java。每当我执行“sudo service hadoop-hdfs-namenode start”时,会出现以下错误信息:
执行
我做了很多搜索,但没有找到任何能帮助我解决问题的东西。有人能提供一些线索吗?到底出了什么问题?
2014-05-14 05:08:38,023 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join
java.lang.IllegalArgumentException: Invalid URI for NameNode address (check fs.defaultFS): file:/// has no authority.
at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:329)
at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:317)
at org.apache.hadoop.hdfs.server.namenode.NameNode.getRpcServerAddress(NameNode.java:370)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loginAsNameNodeUser(NameNode.java:422)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:442)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:621)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:606)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1177)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1241)
My core-site.xml
:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://<master-ip>:8020</value>
</property>
</configuration>
mapred-site.xml
:
<?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>hdfs://<master-ip>:8021</value>
</property>
</configuration>
hdfs-site.xml
:
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>dfs.replication</name>
<value>2</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
</configuration>
我尝试使用公共IP
,私有IP
,公共DNS
和FQDN
,但结果相同。 目录/etc/hadoop/conf.empty
的外观如下:
-rw-r--r-- 1 root root 2998 Feb 26 10:21 capacity-scheduler.xml
-rw-r--r-- 1 root hadoop 1335 Feb 26 10:21 configuration.xsl
-rw-r--r-- 1 root root 233 Feb 26 10:21 container-executor.cfg
-rwxr-xr-x 1 root root 287 May 14 05:09 core-site.xml
-rwxr-xr-x 1 root root 2445 May 14 05:09 hadoop-env.sh
-rw-r--r-- 1 root hadoop 1774 Feb 26 10:21 hadoop-metrics2.properties
-rw-r--r-- 1 root hadoop 2490 Feb 26 10:21 hadoop-metrics.properties
-rw-r--r-- 1 root hadoop 9196 Feb 26 10:21 hadoop-policy.xml
-rwxr-xr-x 1 root root 332 May 14 05:09 hdfs-site.xml
-rw-r--r-- 1 root hadoop 8735 Feb 26 10:21 log4j.properties
-rw-r--r-- 1 root root 4113 Feb 26 10:21 mapred-queues.xml.template
-rwxr-xr-x 1 root root 290 May 14 05:09 mapred-site.xml
-rw-r--r-- 1 root root 178 Feb 26 10:21 mapred-site.xml.template
-rwxr-xr-x 1 root root 12 May 14 05:09 masters
-rwxr-xr-x 1 root root 29 May 14 05:09 slaves
-rw-r--r-- 1 root hadoop 2316 Feb 26 10:21 ssl-client.xml.example
-rw-r--r-- 1 root hadoop 2251 Feb 26 10:21 ssl-server.xml.example
-rw-r--r-- 1 root root 2513 Feb 26 10:21 yarn-env.sh
-rw-r--r-- 1 root root 2262 Feb 26 10:21 yarn-site.xml
slaves
列出了两台从属机的 IP地址
:
<slave1-ip>
<slave2-ip>
执行
update-alternatives --get-selections | grep hadoop
hadoop-conf auto /etc/hadoop/conf.empty
我做了很多搜索,但没有找到任何能帮助我解决问题的东西。有人能提供一些线索吗?到底出了什么问题?
fs.defaultFS
还是fs.default.name
都会导致失败。此外,在 Cloudera 页面上它说fs.default.name
已经被弃用了。 - cybertextron