zybreak opened a new pull request, #3736:
URL: https://github.com/apache/cassandra/pull/3736
Our Cassandra 5.0.2 cluster is struggling when consuming large amounts of
embeddings (>200M) and at some point (a node dies with the following stack
trace:
```
java.lang.NullPointerException: Cannot invoke
"java.lang.Boolean.booleanValue()" because "res" is null
at
org.apache.cassandra.utils.memory.MemtableCleanerThread$Clean.apply(MemtableCleanerThread.java:97)
at
org.apache.cassandra.utils.concurrent.ListenerList$CallbackBiConsumerListener.run(ListenerList.java:244)
at
org.apache.cassandra.concurrent.ImmediateExecutor.execute(ImmediateExecutor.java:140)
at
org.apache.cassandra.utils.concurrent.ListenerList.safeExecute(ListenerList.java:166)
at
org.apache.cassandra.utils.concurrent.ListenerList.notifyListener(ListenerList.java:157)
at
org.apache.cassandra.utils.concurrent.ListenerList$CallbackBiConsumerListener.notifySelf(ListenerList.java:250)
at
org.apache.cassandra.utils.concurrent.ListenerList.lambda$notifyExclusive$0(ListenerList.java:124)
at
org.apache.cassandra.utils.concurrent.IntrusiveStack.forEach(IntrusiveStack.java:195)
at
org.apache.cassandra.utils.concurrent.ListenerList.notifyExclusive(ListenerList.java:124)
at
org.apache.cassandra.utils.concurrent.ListenerList.notify(ListenerList.java:96)
at
org.apache.cassandra.utils.concurrent.AsyncFuture.trySet(AsyncFuture.java:104)
at
org.apache.cassandra.utils.concurrent.AbstractFuture.tryFailure(AbstractFuture.java:148)
at
org.apache.cassandra.utils.concurrent.AsyncPromise.tryFailure(AsyncPromise.java:139)
at
org.apache.cassandra.db.memtable.AbstractAllocatorMemtable.lambda$flushLargestMemtable$0(AbstractAllocatorMemtable.java:306)
at
org.apache.cassandra.concurrent.ImmediateExecutor.execute(ImmediateExecutor.java:140)
at
org.apache.cassandra.utils.concurrent.ListenerList.safeExecute(ListenerList.java:166)
at
org.apache.cassandra.utils.concurrent.ListenerList.notifyListener(ListenerList.java:157)
at
org.apache.cassandra.utils.concurrent.ListenerList$RunnableWithExecutor.notifySelf(ListenerList.java:345)
at
org.apache.cassandra.utils.concurrent.ListenerList.lambda$notifyExclusive$0(ListenerList.java:124)
at
org.apache.cassandra.utils.concurrent.IntrusiveStack.forEach(IntrusiveStack.java:195)
at
org.apache.cassandra.utils.concurrent.ListenerList.notifyExclusive(ListenerList.java:124)
at
org.apache.cassandra.utils.concurrent.ListenerList.notify(ListenerList.java:96)
at
org.apache.cassandra.utils.concurrent.AsyncFuture.trySet(AsyncFuture.java:104)
at
org.apache.cassandra.utils.concurrent.AbstractFuture.tryFailure(AbstractFuture.java:148)
at
org.apache.cassandra.concurrent.FutureTask.tryFailure(FutureTask.java:87)
at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:75)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:840)
```
Which results from the Clean.apply method being called with null for the
first argument
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