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HDFS Forum

HDFS getimage gone in HDP2.1?

  • #53506
    Steve
    Participant

    After upgrading a cluster to HDP 2.1 (from 2.0.9), my namenode backup script has stopped working because
    http://{namenode}:50070/getImage
    is now returning 404s (started immediately after the upgrade).

    Did the API or method for backing up namenodes change in the latest HDFS version? I am using NN HA with QJM.

    Are there any Horton docs that covers the best practices for backing up HDFS? (all I can find a doc on backing it up prior to a system upgrade, which puts it into safe mode — not what I’m looking for).

  • Author
    Replies
  • #53614
    Robert Molina
    Keymaster

    Hi Steve,
    Can you try the following:
    http://:50070/getimage?getimage=1&txid=latest

    Regards,
    Robert

    #53615
    Robert Molina
    Keymaster

    Hi Steve,
    I just tested on latest HDP 2.1 and able to reproduce, checking to see if anything has changed with that api call.

    Regards,
    Robert

    #54981
    Steve
    Participant

    I did some more digging and the API did change, it’s now:
    http://${nameNode}:50070/imagetransfer?getimage=1&txid=latest

    The “official” way of doing this is via:
    hdfs dfsadmin -fetchImage <local directory>
    which just seems to do the call to the /imagetransfer URL above.

The forum ‘HDFS’ is closed to new topics and replies.

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