# OutOfMemoryError: Direct buffer memory **URL:** \ **Category:** Elasticsearch\ **Created:** [March 17, 2014, 9:39am UTC](https://discuss.elastic.co/t/outofmemoryerror-direct-buffer-memory/16402 "2014-03-17T09:39:01Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Daniel\_Guo](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniel_guo/32/1725_2.png) [@Daniel\_Guo](https://discuss.elastic.co/u/Daniel_Guo)\ **Post date:** [March 17, 2014, 9:39am UTC](https://discuss.elastic.co/t/outofmemoryerror-direct-buffer-memory/16402/1 "2014-03-17T09:39:01Z")
I use elasticsearch as an index server. And I deploy a web project to create index and search result from my es server. I got the following error from the logs of the web project: [elasticsearch[Vengeance][transport\_client\_worker][T#12]{New I/O worker #6249}] WARN org.elasticsearch.netty.channel.socket.nio.AbstractNioSelector - Unexpected exception in the selector loop. java.lang.OutOfMemoryError: Direct buffer memory at java.nio.Bits.reserveMemory(Bits.java:632) at java.nio.DirectByteBuffer.(DirectByteBuffer.java:97) at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:288) at org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.newBuffer(SocketReceiveBufferAllocator.java:64) at org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.get(SocketReceiveBufferAllocator.java:41) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:62) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) ES\_HEAP\_SIZE=2048, and the server running elasticsearch has free memory of 8GB. Any ideas of the root causing the error? thanks verymuch! -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [March 17, 2014, 12:33pm UTC](https://discuss.elastic.co/t/outofmemoryerror-direct-buffer-memory/16402/2 "2014-03-17T12:33:07Z")
Are you sending an enormous bulk indexing request? If so, try to send fewer docs at a time, eg 1,000 On 17 March 2014 10:39, Daniel Guo [daniel5hbs@gmail.com](mailto:daniel5hbs@gmail.com) wrote: > I use elasticsearch as an index server. And I deploy a web project to > create index and search result from my es server. > > I got the following error from the logs of the web project: > > [elasticsearch[Vengeance][transport\_client\_worker][T#12]{New I/O worker > #6249}] WARN > org.elasticsearch.netty.channel.socket.nio.AbstractNioSelector - > Unexpected exception in the selector loop. > java.lang.OutOfMemoryError: Direct buffer memory > at java.nio.Bits.reserveMemory(Bits.java:632) > at java.nio.DirectByteBuffer.(DirectByteBuffer.java:97) > at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:288) > at > org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.newBuffer(SocketReceiveBufferAllocator.java:64) > at > org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.get(SocketReceiveBufferAllocator.java:41) > at > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:62) > at > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) > at > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) > at > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) > at > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) > at > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) > at > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:662) > > ES\_HEAP\_SIZE=2048, and the server running elasticsearch has free memory of > 8GB. > > Any ideas of the root causing the error? thanks verymuch! > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAPt3XKRuBe0iQyX5DET\_syLDSq8fRTNReVcw40hq\_PCi3bWKmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPt3XKRuBe0iQyX5DET_syLDSq8fRTNReVcw40hq_PCi3bWKmg%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Daniel\_Guo](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniel_guo/32/1725_2.png) [@Daniel\_Guo](https://discuss.elastic.co/u/Daniel_Guo)\ **Post date:** [March 17, 2014, 3:00pm UTC](https://discuss.elastic.co/t/outofmemoryerror-direct-buffer-memory/16402/3 "2014-03-17T15:00:36Z")
Yes, my bulk size is 10,000. I'll try to make it smaller. Thanks a lot, Clinton! On Monday, March 17, 2014 8:33:07 PM UTC+8, Clinton Gormley wrote: > Are you sending an enormous bulk indexing request? If so, try to send > fewer docs at a time, eg 1,000 > > On 17 March 2014 10:39, Daniel Guo \<[danie...@gmail.com](mailto:danie...@gmail.com) \\>wrote: > > > I use elasticsearch as an index server. And I deploy a web project to > > create index and search result from my es server. > > > > I got the following error from the logs of the web project: > > > > [elasticsearch[Vengeance][transport\_client\_worker][T#12]{New I/O worker > > #6249}] WARN > > org.elasticsearch.netty.channel.socket.nio.AbstractNioSelector - > > Unexpected exception in the selector loop. > > java.lang.OutOfMemoryError: Direct buffer memory > > at java.nio.Bits.reserveMemory(Bits.java:632) > > at java.nio.DirectByteBuffer.(DirectByteBuffer.java:97) > > at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:288) > > at > > org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.newBuffer(SocketReceiveBufferAllocator.java:64) > > at > > org.elasticsearch.common.netty.channel.socket.nio.SocketReceiveBufferAllocator.get(SocketReceiveBufferAllocator.java:41) > > at > > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:62) > > at > > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) > > at > > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) > > at > > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) > > at > > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) > > at > > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) > > at > > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > > at java.lang.Thread.run(Thread.java:662) > > > > ES\_HEAP\_SIZE=2048, and the server running elasticsearch has free memory > > of 8GB. > > > > Any ideas of the root causing the error? thanks verymuch! > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/2908b469-26ae-412c-bf1d-63d693aac543%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e134b25f-0c2b-4611-82b7-45d69eaa417b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e134b25f-0c2b-4611-82b7-45d69eaa417b%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 1:42am UTC](https://discuss.elastic.co/t/outofmemoryerror-direct-buffer-memory/16402/4 "2017-07-06T01:42:47Z")