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Hive / HCatalog Forum

TTransportException: Read timed out

  • #29050

    I an currently encountering this error when running a query against a table with many (~10k) partitions. (The partitions are about 70m each, which is small, but this is just a subset of the data.) Selecting from a small set of partitions works fine. I thought it might be related to hive.metastore.batch.retrieve.max and hive.metastore.batch.retrieve.table.partition.max set I temporarily set them both to 50 with no change in behavior. I don’t think upping hive.metastore.client.socket.timeout is a long-term solution.

    I looked for hive logs on the metastore master in /var/log/hive/, but they contain only startup messages. I also looked in /var/log/hadoop/hive which is mentioned in the java command, but that is empty.

    Any thoughts on a solution, or places to get more information about what is happening?

    HDP 1.3
    Red Hat Enterprise Linux Server release 6.4 (Santiago)

    hive> select * from view_airing_overlay;
    FAILED: SemanticException org.apache.thrift.transport.TTransportException: Read timed out

    hive> show partitions view_airing_overlay;

    Time taken: 2.63 seconds, Fetched: 10854 row(s)

  • Author
  • #29106
    Sasha J

    I understand that changing the timeout isn’t a long term solution, but does it actually work? I.e.: If you change the timeout will the query succeed? I’m asking because if yes then we have a performance problem, if no it’s even worse.

    Could you please provide us with some more information? We need to try to reproduce the situation….

    Thank you!

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