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Posted to hdfs-dev@hadoop.apache.org by "Ming Ma (JIRA)" <ji...@apache.org> on 2015/09/02 05:09:46 UTC
[jira] [Created] (HDFS-9005) Provide support for upgrade domain
script
Ming Ma created HDFS-9005:
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Summary: Provide support for upgrade domain script
Key: HDFS-9005
URL: https://issues.apache.org/jira/browse/HDFS-9005
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Ming Ma
As part of the upgrade domain feature, we need to provide a mechanism to specify upgrade domain for each datanode. One way to accomplish that is to allow admins specify an upgrade domain script that takes DN ip or hostname as input and return the upgrade domain. Then namenode will use it at run time to set {{DatanodeInfo}}'s upgrade domain string. The configuration can be something like:
{noformat}
<property>
<name>dfs.namenode.upgrade.domain.script.file.name</name>
<value>/etc/hadoop/conf/upgrade-domain.sh</value>
</property>
{noformat}
just like topology script,
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