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  1. IMPALA
  2. IMPALA-6959

Update HAProxy configuration sample for Impala

    Details

    • Type: Task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 2.12.0
    • Fix Version/s: Impala 3.0, Impala 2.13.0
    • Component/s: Docs
    • Labels:
      None
    • Epic Color:
      ghx-label-8

      Description

      Our doc regarding setting up Impala HA using HAProxy:
      https://www.cloudera.com/documentation/enterprise/latest/topics/impala_proxy.html

      it uses the following timeout values:

          contimeout 5000
          clitimeout 50000
          srvtimeout 50000
      

      Two issues here:

      1. contimeout, clitimeout and srvtimeout are old, the new config names should be

      timeout connect
      timeout client
      timeout server
      

      The outdated config names shows that our docs are also outdated

      2. the timeout value of 50000, which is 50 seconds is too low, it will cause impala client to timeout all the time, the correct value should be at least 1 hour to start with:

          timeout client 3600s
          timeout server 3600s
      

      And we should also mention that these values should be dependant on how users use the cluster and how long their queries are running. It is NOT one config fits for all case.

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            • Assignee:
              arodoni_cloudera Alex Rodoni
              Reporter:
              arodoni_cloudera Alex Rodoni
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              • Created:
                Updated:
                Resolved: