Piotr Kolaczkowski created CASSANDRA-17552:
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Summary: 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
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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