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https://issues.apache.org/jira/browse/CASSANDRA-17552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Brandon Williams updated CASSANDRA-17552:
-----------------------------------------
Resolution: Duplicate
Status: Resolved (was: Triage Needed)
> LongBufferPoolTest failing, several data races in BufferPool
> ------------------------------------------------------------
>
> Key: CASSANDRA-17552
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17552
> Project: Cassandra
> Issue Type: Bug
> Reporter: Piotr Kolaczkowski
> Priority: Normal
>
> LongBufferPoolTest fails pretty consistently on my local laptop.
> I identified 3 different failure modes:
>
> {noformat}
> ERROR [test:1] 2022-04-13 16:29:03,064 LongBufferPoolTest.java:588 - Got
> throwable null, current chunk [slab java.nio.DirectByteBuffer[pos=0
> lim=131072 cap=131072], slots bitmap
> 1111111111111111111111111111111111111111111111111111111111111111, capacity
> 131072, free 131072]
> java.lang.AssertionError
> at
> org.apache.cassandra.utils.memory.BufferPool$Chunk.get(BufferPool.java:1315)
> at
> org.apache.cassandra.utils.memory.BufferPool$MicroQueueOfChunks.get(BufferPool.java:576)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGetInternal(BufferPool.java:900)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.lambda$new$0(BufferPool.java:739)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.addChunkFromParent(BufferPool.java:952)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGetInternal(BufferPool.java:907)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGet(BufferPool.java:893)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.access$000(BufferPool.java:710)
> at
> org.apache.cassandra.utils.memory.BufferPool.tryGet(BufferPool.java:205)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$2.testOne(LongBufferPoolTest.java:513)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:575)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:553)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
>
> {noformat}
> ERROR [main] 2022-04-13 16:30:27,139 LongBufferPoolTest.java:614 - Test
> failed - null
> java.lang.AssertionError: null
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$Debug.check(LongBufferPoolTest.java:106)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest.testAllocate(LongBufferPoolTest.java:288)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest.main(LongBufferPoolTest.java:607)
> {noformat}
> {noformat}
> ERROR [test:1] 2022-04-13 16:36:54,093 LongBufferPoolTest.java:580 - Got
> exception null, current chunk null
> java.lang.NullPointerException
> at
> org.apache.cassandra.utils.memory.BufferPool$MicroQueueOfChunks.add(BufferPool.java:513)
> at
> org.apache.cassandra.utils.memory.BufferPool$MicroQueueOfChunks.access$2200(BufferPool.java:480)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.addChunk(BufferPool.java:963)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.addChunkFromParent(BufferPool.java:956)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGetInternal(BufferPool.java:907)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGet(BufferPool.java:893)
> at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.access$000(BufferPool.java:710)
> at
> org.apache.cassandra.utils.memory.BufferPool.tryGet(BufferPool.java:205)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$2.testOne(LongBufferPoolTest.java:512)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:575)
> at
> org.apache.cassandra.utils.memory.LongBufferPoolTest$TestUntil.call(LongBufferPoolTest.java:553)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> Branch: cassadra 4.0, commit d1270c204f31578212bfca5860ab46abeaec22b9
>
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