Luigi Di Fraia created HDFS-12109: ------------------------------------- Summary: "fs" java.net.UnknownHostException when HA NameNode is used Key: HDFS-12109 URL: https://issues.apache.org/jira/browse/HDFS-12109 Project: Hadoop HDFS Issue Type: Bug Components: fs Affects Versions: 2.8.0 Environment: [hadoop@namenode01 ~]$ cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) [hadoop@namenode01 ~]$ uname -a Linux namenode01 3.10.0-514.10.2.el7.x86_64 #1 SMP Fri Mar 3 00:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux [hadoop@namenode01 ~]$ java -version java version "1.8.0_131" Java(TM) SE Runtime Environment (build 1.8.0_131-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode) Reporter: Luigi Di Fraia
After setting up an HA NameNode configuration, the following invocation of "fs" fails: [hadoop@namenode01 ~]$ /usr/local/hadoop/bin/hdfs dfs -ls / -ls: java.net.UnknownHostException: saccluster It works if properties are defined as per below: /usr/local/hadoop/bin/hdfs dfs -Ddfs.nameservices=saccluster -Ddfs.client.failover.proxy.provider.saccluster=org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider -Ddfs.ha.namenodes.saccluster=namenode01,namenode02 -Ddfs.namenode.rpc-address.saccluster.namenode01=namenode01:8020 -Ddfs.namenode.rpc-address.saccluster.namenode02=namenode02:8020 -ls / These properties are defined in /usr/local/hadoop/etc/hadoop/hdfs-site.xml as per below: <property> <name>dfs.nameservices</name> <value>saccluster</value> </property> <property> <name>dfs.ha.namenodes.saccluster</name> <value>namenode01,namenode02</value> </property> <property> <name>dfs.namenode.rpc-address.saccluster.namenode01</name> <value>namenode01:8020</value> </property> <property> <name>dfs.namenode.rpc-address.saccluster.namenode02</name> <value>namenode02:8020</value> </property> <property> <name>dfs.namenode.http-address.saccluster.namenode01</name> <value>namenode01:50070</value> </property> <property> <name>dfs.namenode.http-address.saccluster.namenode02</name> <value>namenode02:50070</value> </property> <property> <name>dfs.namenode.shared.edits.dir</name> <value>qjournal://namenode01:8485;namenode02:8485;datanode01:8485/saccluster</value> </property> <property> <name>dfs.client.failover.proxy.provider.mycluster</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> In /usr/local/hadoop/etc/hadoop/hadoop-env.sh the following export is defined: export HADOOP_CONF_DIR="/usr/local/hadoop/etc/hadoop" Is "fs" trying to read these properties from somewhere else, such as a separate client configuration file? Apologies if I a missing something obvious here. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org