Tianyin Xu created HDFS-7684:
--------------------------------
Summary: The Host:Port Settings of
dfs.namenode.secondary.http-address should be trimmed before use
Key: HDFS-7684
URL: https://issues.apache.org/jira/browse/HDFS-7684
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.5.1, 2.4.1
Reporter: Tianyin Xu
With the following setting,
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>myhostname:50090 </value>
</property>
The secondary NameNode could not be started
$ hadoop-daemon.sh start secondarynamenode
starting secondarynamenode, logging to
/home/hadoop/hadoop-2.4.1/logs/hadoop-hadoop-secondarynamenode-xxx.out
/home/hadoop/hadoop-2.4.1/bin/hdfs
Exception in thread "main" java.lang.IllegalArgumentException: Does not contain
a valid host:port authority: myhostname:50090
at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:196)
at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:163)
at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:152)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.getHttpAddress(SecondaryNameNode.java:203)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:214)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:192)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:651)
We were really confused and misled by the log message: we thought about the DNS
problems (changed to IP address but no success) and the network problem (tried
to test the connections with no success...)
It turned out to be that the setting is not trimmed and the additional space
character in the end of the setting caused the problem... OMG!!!...
Searching on the Internet, we find we are really not alone. So many users
encountered similar trim problems! The following lists a few:
http://solaimurugan.blogspot.com/2013/10/hadoop-multi-node-cluster-configuration.html
http://stackoverflow.com/questions/11263664/error-while-starting-the-hadoop-using-strat-all-sh
https://issues.apache.org/jira/browse/HDFS-2799
https://issues.apache.org/jira/browse/HBASE-6973
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