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Posted to commits@cassandra.apache.org by "Jon Meredith (JIRA)" <ji...@apache.org> on 2018/09/25 21:15:00 UTC

[jira] [Created] (CASSANDRA-14790) LongBufferPoolTest burn test fails assertion

Jon Meredith created CASSANDRA-14790:
----------------------------------------

             Summary: LongBufferPoolTest burn test fails assertion
                 Key: CASSANDRA-14790
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14790
             Project: Cassandra
          Issue Type: Test
          Components: Testing
         Environment: Run under macOS 10.13.6, with patch (attached, but also https://github.com/jonmeredith/cassandra/tree/failing-burn-test)
            Reporter: Jon Meredith
         Attachments: 0001-Add-burn-testsome-target-to-build.xml.patch, 0002-Initialize-before-running-LongBufferPoolTest.patch

The LongBufferPoolTest from the burn tests fails with an assertion error.  I added a build target to run individual burn tests, and \{jasobrown} gave a fix for the uninitialized test setup (attached), however the test now fails on an assertion about recycling buffers.

To reproduce (with patch applied)

{{
ant burn-testsome -Dtest.name=org.apache.cassandra.utils.memory.LongBufferPoolTest -Dtest.methods=testAllocate
}}

Output

{{

    [junit] Testcase: testAllocate(org.apache.cassandra.utils.memory.LongBufferPoolTest): FAILED

    [junit] null

    [junit] junit.framework.AssertionFailedError

    [junit] at org.apache.cassandra.utils.memory.BufferPool$Debug.check(BufferPool.java:204)

    [junit] at org.apache.cassandra.utils.memory.BufferPool.assertAllRecycled(BufferPool.java:181)

    [junit] at org.apache.cassandra.utils.memory.LongBufferPoolTest.testAllocate(LongBufferPoolTest.java:350)

    [junit] at org.apache.cassandra.utils.memory.LongBufferPoolTest.testAllocate(LongBufferPoolTest.java:54)}}

All major branches from 3.0 and later have issues, however the trunk branch also warns about references not being released before the reference is garbage collected.

{{

     [junit] ERROR [Reference-Reaper:1] 2018-09-25 13:59:54,089 Ref.java:224 - LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@7f58d19a) to @623704362 was not released before the reference was garbage collected
    [junit] ERROR [Reference-Reaper:1] 2018-09-25 13:59:54,089 Ref.java:255 - Allocate trace org.apache.cassandra.utils.concurrent.Ref$State@7f58d19a:
    [junit] Thread[pool-2-thread-24,5,main]
    [junit] 	at java.lang.Thread.getStackTrace(Thread.java:1559)
    [junit] 	at org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:245)
    [junit] 	at org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:175)
    [junit] 	at org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:97)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool$Chunk.setAttachment(BufferPool.java:663)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool$Chunk.get(BufferPool.java:803)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool$Chunk.get(BufferPool.java:793)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool$LocalPool.get(BufferPool.java:388)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool.maybeTakeFromPool(BufferPool.java:143)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool.takeFromPool(BufferPool.java:115)
    [junit] 	at org.apache.cassandra.utils.memory.BufferPool.get(BufferPool.java:85)
    [junit] 	at org.apache.cassandra.utils.memory.LongBufferPoolTest$3.allocate(LongBufferPoolTest.java:296)
    [junit] 	at org.apache.cassandra.utils.memory.LongBufferPoolTest$3.testOne(LongBufferPoolTest.java:246)
    [junit] 	at org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:399)
    [junit] 	at org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:379)
    [junit] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    [junit] 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    [junit] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    [junit] 	at java.lang.Thread.run(Thread.java:748)

}}

Perhaps the environment is not being set up correctly for the tests.
 



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