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  1. Derby
  2. DERBY-4895

Thread local TableDescriptor#referencedColumnMap is not removed from app threads when Derby is shut down

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 10.5.1.1, 10.5.2.0, 10.5.3.0, 10.6.1.0, 10.6.2.1
    • Fix Version/s: 10.5.3.2, 10.6.2.4, 10.7.1.1
    • Component/s: SQL
    • Labels:
      None
    • Bug behavior facts:
      Regression, Seen in production

      Description

      > This has been seen to cause error messages in TomCat, cf. this quote from a mail on derby-user:
      >
      > http://mail-archives.apache.org/mod_mbox/db-derby-user/201011.mbox/%3C7800E37B639BC345BC2AB40980B7C529180FB525@MERCMBX03R.na.SAS.com%3E
      >
      > SEVERE: The web application [/MyApp] created a ThreadLocal with key of type [org.apache.derby.iapi.sq\
      > l.dictionary.TableDescriptor$1] (value [org.apache.derby.iapi.sql.dictionary.TableDescriptor$1@d133a3])\
      > and a value of type [java.util.WeakHashMap] (value [{=

      {1, 2, 3, 4}

      , =null, =null}]) but failed to remo\
      > ve it when the web application was stopped. This is very likely to create a memory leak.

        Attachments

        1. DERBY-4895_10_5_diff.txt
          7 kB
          Kathey Marsden
        2. derby-4895_10_6_diff.txt
          7 kB
          Kathey Marsden
        3. derby-4895-a.diff
          7 kB
          Dag H. Wanvik
        4. derby-4895-a.stat
          0.2 kB
          Dag H. Wanvik

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              • Assignee:
                dagw Dag H. Wanvik
                Reporter:
                dagw Dag H. Wanvik
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                Dates

                • Created:
                  Updated:
                  Resolved: