I encountered a similar issue recently. Are you using the UnpooledByteBufAllocator by any chance? If so, you need to carefully tune (or just disable) the Recycler parameters. Also, a few changes recently landed including lower defaults for the recycler memory usage. You can disable the recycler by setting the JVM flag -Dio.netty.recycler.maxCapacity=0
You can see the original discussion here: https://groups.google.com/forum/#!topic/netty/Ve4lnRvFXjM On Friday, August 5, 2016 at 6:45:14 AM UTC-4, Mahesh Govind wrote: > > Hi , > > I am facing the following out of memory issue . > This is happening from my client .Could you please let me know some fine > tuning options ... > > > io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 > byte(s) of direct memory (used: 922746880, max: 928514048) > at > io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:613) > at > io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:567) > at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:686) > at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:675) > at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:237) > at io.netty.buffer.PoolArena.allocate(PoolArena.java:221) > at io.netty.buffer.PoolArena.allocate(PoolArena.java:141) > at > io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:262) > at > io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179) > at > io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:170) > at > io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:131) > at > io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:73) > at > io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:111) > at > io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:571) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:512) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:426) > at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:398) > at > io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:877) > at > io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144) > at java.lang.Thread.run(Thread.java:745) > regards > Mahesh > > -- You received this message because you are subscribed to the Google Groups "Netty discussions" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/netty/26733c3c-6e29-40f7-96bf-6b8d116dbf18%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
