eclipse連結hadoop2.5.1時報錯Error:Call From roo/10.30.12.xxx to hostname1:9000 failed on connection excep
阿新 • • 發佈:2019-01-27
問題:我用eclipse(Mar.2 Release(4.5.2))連線hadoop2.5.1時報錯:Error:Call From roo/10.30.12.xxx to hostname1:9000 failed on connection exception:java.net.ConnectException:Connection refused:no further information;...如下圖所示:
出現原因:hdfs-site.xml中配置的DFS Master的埠號和eclipse連線hdfs的埠號不同。hdfs-site.xml的配置如下:
hdfs-site.xml裡配置的dfs的埠號是8020,我在用eclipse連線hdfs時卻把埠號寫成了9000,因此,本地的eclipse連線hdfs肯定被拒絕。<configuration> <property> <name>dfs.nameservices</name> <value>mycluster</value> </property> <property> <name>dfs.ha.namenodes.mycluster</name> <value>nn1,nn2</value> </property> <property> <name><span style="color:#ff0000;">dfs.namenode.rpc-address.mycluster.nn1</span></name> <value><span style="color:#ff0000;">lida1:8020</span></value> </property> <property> <name>dfs.namenode.rpc-address.mycluster.nn2</name> <value>lida2:8020</value> </property> <property> <name>dfs.namenode.http-address.mycluster.nn1</name> <value>lida1:50070</value> </property> <property> <name>dfs.namenode.http-address.mycluster.nn2</name> <value>lida2:50070</value> </property> <property> <name>dfs.namenode.shared.edits.dir</name> <value>qjournal://lida2:8485;lida3:8485;lida4:8485/mycluster</value> </property> <property> <name>dfs.client.failover.proxy.provider.mycluster</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> <property> <name>dfs.ha.fencing.methods</name> <value>sshfence</value> </property> <property> <name>dfs.ha.automatic-failover.enabled</name> <value>true</value> </property> <property> <name>dfs.permissions</name> <value>false</value> </property> </configuration>
解決辦法:修改eclipse連線hdfs的埠號即可。如下圖所示:
修改完埠後,重啟eclipse,然後再開啟DFS locations,就不報上面的錯了。