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From Stephen Chu <s...@cloudera.com>
Subject Re: hdfs 2.2 federation
Date Thu, 19 Jun 2014 15:50:20 GMT
Hi,

There are some open issues with DFSAdmin.

You can read more at

https://issues.apache.org/jira/browse/HDFS-5147 (Certain dfsadmin commands
such as safemode do not interact with the active namenode in ha setup)
https://issues.apache.org/jira/browse/HDFS-6507 (Improve DFSAdmin to
support HA cluster better)

Thanks,
Stephen



On Thu, Jun 19, 2014 at 2:14 AM, 조주일 <tjstory@kgrid.co.kr> wrote:

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> ns01 = HA( namenode194-active, namenode195-standby )
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> ns02 = HA( namenode196-active, namenode197-standby )
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> I was running on the server command 195
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> I was running the command(-safemode enter)  namenode194 server
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> $HADOOP_PREFIX/bin/hdfs dfsadmin -safemode enter
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> I was expecting to change safemode both namenode194 and namenode195
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> However, only changes namenode195.
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> What's the problem?
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