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Posted to hdfs-dev@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2013/08/07 22:07:51 UTC

[jira] [Created] (HDFS-5076) Create http servlets to enable querying NN's last applied transaction ID and most recent checkpoint's transaction ID

Jing Zhao created HDFS-5076:
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             Summary: Create http servlets to enable querying NN's last applied transaction ID and most recent checkpoint's transaction ID
                 Key: HDFS-5076
                 URL: https://issues.apache.org/jira/browse/HDFS-5076
             Project: Hadoop HDFS
          Issue Type: New Feature
    Affects Versions: 3.0.0
            Reporter: Jing Zhao
            Assignee: Jing Zhao
            Priority: Minor


Currently NameNode already provides RPC calls to get its last applied transaction ID and most recent checkpoint's transaction ID. It can be helpful to provide servlets to enable querying these information through http, so that administrators and applications like Ambari can easily decide if a forced checkpoint by calling saveNamespace is necessary.

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