Jon Haddad created CASSANDRA-19535:
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Summary: Running with default configuration OOMs under light load
Key: CASSANDRA-19535
URL: https://issues.apache.org/jira/browse/CASSANDRA-19535
Project: Cassandra
Issue Type: Bug
Reporter: Jon Haddad
Under very moderate load, Cassandra crashes with direct memory errors.
{noformat}
ERROR [epollEventLoopGroup-5-16] 2024-04-04 19:16:50,096
JVMStabilityInspector.java:186 - Force heap space OutOfMemoryError in the
presence of
java.lang.OutOfMemoryError: Cannot reserve 65536 bytes of direct buffer memory
(allocated: 8589921806, limit: 8589934592)
at java.base/java.nio.Bits.reserveMemory(Bits.java:178)
at java.base/java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:121)
at java.base/java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:332)
at
org.apache.cassandra.utils.memory.BufferPool.allocate(BufferPool.java:238)
at
org.apache.cassandra.utils.memory.BufferPool$LocalPool.get(BufferPool.java:923)
at
org.apache.cassandra.utils.memory.BufferPool$LocalPool.getAtLeast(BufferPool.java:901)
at
org.apache.cassandra.utils.memory.BufferPool.getAtLeast(BufferPool.java:219)
at
org.apache.cassandra.net.BufferPoolAllocator.getAtLeast(BufferPoolAllocator.java:75)
at
org.apache.cassandra.net.BufferPoolAllocator.newDirectBuffer(BufferPoolAllocator.java:63)
at
io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:188)
at
io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179)
at
io.netty.channel.unix.PreferredDirectByteBufAllocator.ioBuffer(PreferredDirectByteBufAllocator.java:53)
at
io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:120)
at
io.netty.channel.epoll.EpollRecvByteAllocatorHandle.allocate(EpollRecvByteAllocatorHandle.java:75)
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:785)
at
io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:425)
at
io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174)
at
io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167)
at
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:413)
at
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
at
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:840){noformat}
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