Intermittent failures in CompressTableTest and TruncateTableTest
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                 Key: DERBY-5406
                 URL: https://issues.apache.org/jira/browse/DERBY-5406
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.8.1.6, 10.9.0.0
            Reporter: Knut Anders Hatlen


The test cases CompressTableTest.testConcurrentInvalidation() and 
TruncateTableTest.testConcurrentInvalidation() fail intermittently with errors 
such as:

ERROR XSAI2: The conglomerate (2,720) requested does not exist.

The problem has been analyzed in the comments on DERBY-4275, and a patch 
attached to that issue (invalidation-during-compilation.diff) fixes the 
underlying race condition. However, that patch only works correctly together 
with the fix for DERBY-5161, which was backed out because it caused the 
regression DERBY-5280.

We will therefore need to find a way to fix DERBY-5161 without reintroducing 
DERBY-5280 in order to resolve this issue.

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