HA: disable 2NN when HA is enabled
----------------------------------
Key: HDFS-2894
URL: https://issues.apache.org/jira/browse/HDFS-2894
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ha
Affects Versions: HA branch (HDFS-1623)
Reporter: Eli Collins
Assignee: Eli Collins
The SecondaryNameNode should log a message and refuse to start if HA is enabled
since the StandbyNode checkpoints by default and IIRC we have not yet enabled
the ability to have multiple checkpointers in the NN.
On the HA branch the 2NN does not currently start from start-dfs.sh because
getconf -secondarynamenodes claims the http-address is not configured even
though it is, though this seems like a bug, in branch 23 getconf will correctly
return localhost:50090.
{noformat}
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>localhost:50090</value>
</property>
</configuration>
hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs getconf -secondarynamenodes
Incorrect configuration: secondary namenode address
dfs.namenode.secondary.http-address is not configured.
{noformat}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
