[FLINK-24180] UnalignedCheckpointRescaleITCase fails due to direct OOM

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.15.0
• Fix Version/s: 1.15.0
• Component/s: Runtime / Checkpointing
• Labels: test-stability
• Assignee: Unassigned
• Reporter: Xintong Song
• Created: 07/Sep/21 05:57
• Updated: 18/Feb/22 09:42
• Resolved: 18/Feb/22 09:42

Description

https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=23626&view=logs&j=b0a398c0-685b-599c-eb57-c8c2a771138e&t=747432ad-a576-5911-1e2a-68c6bedc248a&l=10707

Sep 07 00:42:31 Caused by: java.lang.OutOfMemoryError: Direct buffer memory. The direct out-of-memory error has occurred. This can mean two things: either job(s) require(s) a larger size of JVM direct memory or there is a direct memory leak. The direct memory can be allocated by user code or some of its dependencies. In this case 'taskmanager.memory.task.off-heap.size' configuration option should be increased. Flink framework and its dependencies also consume the direct memory, mostly for network communication. The most of network memory is managed by Flink and should not result in out-of-memory error. In certain special cases, in particular for jobs with high parallelism, the framework may require more direct memory which is not managed by Flink. In this case 'taskmanager.memory.framework.off-heap.size' configuration option should be increased. If the error persists then there is probably a direct memory leak in user code or some of its dependencies which has to be investigated and fixed. The task executor has to be shutdown...
Sep 07 00:42:31 	at java.base/java.nio.Bits.reserveMemory(Bits.java:175)
Sep 07 00:42:31 	at java.base/java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:118)
Sep 07 00:42:31 	at java.base/java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:317)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:632)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:607)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:202)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena.tcacheAllocateSmall(PoolArena.java:172)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena.allocate(PoolArena.java:134)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PoolArena.allocate(PoolArena.java:126)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:395)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:187)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:178)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.channel.unix.PreferredDirectByteBufAllocator.ioBuffer(PreferredDirectByteBufAllocator.java:53)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:114)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.channel.epoll.EpollRecvByteAllocatorHandle.allocate(EpollRecvByteAllocatorHandle.java:75)
Sep 07 00:42:31 	at org.apache.flink.shaded.netty4.io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:780)

Issue Links

• duplicates: FLINK-25426 UnalignedCheckpointRescaleITCase.shouldRescaleUnalignedCheckpoint fails on AZP because it cannot allocate enough network buffers