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  1. HPCC
  2. HPCC-21541

Excessive Dali transactions fetching subgraph progress

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 7.0.18
    • Component/s: ESP
    • Labels:
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      Description

      Whilst pursuing reports of an unresponsive/slow Dali, the extended Dali tracing showed that graph progress was being fetched very frequently.

      For one particular workunit, there were 415K graph progress requests in a 6 minute period.
      These corresponded to 53 WUInfo requests (logged in esp).
      This workunit had a lot of subgraphs, and each request was retrieving elements data for 1 subgraph.

      It's not obvious that this interaction was the direct or only cause of the slowdown, but it a lot of traffic, that could be done more efficiently.

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              • Assignee:
                ghalliday Gavin Halliday
                Reporter:
                jakesmith Jake Smith
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                • Created:
                  Updated:
                  Resolved: