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  1. Cassandra
  2. CASSANDRA-14790

LongBufferPoolTest burn test fails assertion

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      Description

      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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            • Assignee:
              jmeredithco Jon Meredith
              Reporter:
              jmeredithco Jon Meredith
              Authors:
              Jon Meredith
              Reviewers:
              Dinesh Joshi
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                Resolved:

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