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  1. Spark
  2. SPARK-23275

hive/tests have been failing when run locally on the laptop (Mac) with OOM

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.3.1
    • Fix Version/s: 2.3.0
    • Component/s: SQL
    • Labels:
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      Description

      hive tests have been failing when they are run locally (Mac Os) after a recent change in the trunk. After running the tests for some time, the test fails with OOM with Error: unable to create new native thread.

      I noticed the thread count goes all the way up to 2000+ after which we start getting these OOM errors. Most of the threads seem to be related to the connection pool in hive metastore (BoneCP-xxxxx-xxxx ). This behaviour change is happening after we made the following change to HiveClientImpl.reset()

       def reset(): Unit = withHiveState {
          try {
            // code
          } finally {
            runSqlHive("USE default")  ===> this is causing the issue
          }
      

      I am proposing to temporarily back-out part of a fix made to address SPARK-23000 to resolve this issue while we work-out the exact reason for this sudden increase in thread counts.

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            • Assignee:
              dkbiswal Dilip Biswal
              Reporter:
              dkbiswal Dilip Biswal
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                Updated:
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