Home Forums HDFS HDFS getimage gone in HDP2.1?

This topic contains 3 replies, has 2 voices, and was last updated by  Steve 5 months ago.

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  • #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).

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  • #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.

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    #53615

    Robert Molina
    Moderator

    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

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    #53614

    Robert Molina
    Moderator

    Hi Steve,
    Can you try the following:

    http://:50070/getimage?getimage=1&txid=latest

    Regards,
    Robert

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