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Hive / HCatalog Forum

Custom File format for HCatalog

  • #28836
    Subroto Sanyal


    Newbie question…
    I have my own file format. The files are saved on HDFS. I would like HCatalog to facilitate to read those files by Hive.
    Something like:


    Where should I start with?
    Is there any sample integration of other File formats which I can use a reference?
    or simply: Is there any documentation or implementation to create a custom StorageHandler and how to use it?

  • Author
  • #28872

    Hi Subroto,

    Yo should look into creating a udf for reading/interpretting you file format.


    Subroto Sanyal

    Hi Ted,

    Is there anyway to develop a custom input-format or SerDe to achieve this?
    I think Hive achieves this using custom input-format and SerDe.
    If it can be achieved by Custom Input-Format; then how can we integrate the InputFormat to HCatalog??

    Subroto Sanyal

    Akki Sharma

    Hi Subroto,

    The closest documentation I could find is “”.

    You can also download the Hive code from “”, look at the code in “./src/hcatalog/storage-handlers/hbase” and try to copy the HBase code to write your custom StorageHandler in Hive.

    Best Regards,

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