# Bulk API - curl: (55) Send failure: Connection was aborted

**URL:** <https://discuss.elastic.co/t/bulk-api-curl-55-send-failure-connection-was-aborted/64927>\
**Category:** Elasticsearch\
**Created:** [November 3, 2016, 6:03pm UTC](https://discuss.elastic.co/t/bulk-api-curl-55-send-failure-connection-was-aborted/64927 "2016-11-03T18:03:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JackOfAllDevs](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@JackOfAllDevs](https://discuss.elastic.co/u/JackOfAllDevs)\
**Post date:** [November 3, 2016, 6:03pm UTC](https://discuss.elastic.co/t/bulk-api-curl-55-send-failure-connection-was-aborted/64927/1 "2016-11-03T18:03:39Z")

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Bulk API - curl: (55) Send failure: Connection was aborted

I've seen a lot of posts about this, but none of the solutions seem to work.  
I've broken my bulk loads into separate file (~50Mb each).  
The server a Xeon processor with 24GB RAM on Windows 2012R2.

If I run the curl command to bulk load the file, it works the first time.  
The second file (same format) Fails with this error.

If I stop/restart the service, the 2nd file will work and the 3rd file will fail.

I've set the heap size to 12g/12g, but does nothing.

java.lang.OutOfMemoryError: Java heap space  
at io.netty.buffer.PoolArena$HeapArena.newChunk(PoolArena.java:633) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:237) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.PoolArena.allocate(PoolArena.java:221) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.PoolArena.allocate(PoolArena.java:141) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.PooledByteBufAllocator.newHeapBuffer(PooledByteBufAllocator.java:247) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.AbstractByteBufAllocator.heapBuffer(AbstractByteBufAllocator.java:160) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.AbstractByteBufAllocator.heapBuffer(AbstractByteBufAllocator.java:151) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:133) ~[netty-buffer-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:73) ~[netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:117) [netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:610) [netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:513) [netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:467) [netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:437) [netty-transport-4.1.5.Final.jar:4.1.5.Final]  
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873) [netty-common-4.1.5.Final.jar:4.1.5.Final]  
at java.lang.Thread.run(Thread.java:745) [?:1.8.0\_102]

Any other ideas.

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<div class="post-metadata">

**Author:** ![JackOfAllDevs](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@JackOfAllDevs](https://discuss.elastic.co/u/JackOfAllDevs)\
**Post date:** [November 3, 2016, 6:18pm UTC](https://discuss.elastic.co/t/bulk-api-curl-55-send-failure-connection-was-aborted/64927/2 "2016-11-03T18:18:56Z")

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I finally found an solution that works on StackOverflow: [http://stackoverflow.com/questions/27128620/elasticsearch-reports-default-heap-memory-size-after-setting-environment-variabl](http://stackoverflow.com/questions/27128620/elasticsearch-reports-default-heap-memory-size-after-setting-environment-variabl)

Basically, I set the Heap size via Windows Environment variable: ES\_HEAP\_SIZE=12g  
Then, I had to REMOVE the service and then re-INSTALL the service.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 10:06pm UTC](https://discuss.elastic.co/t/bulk-api-curl-55-send-failure-connection-was-aborted/64927/3 "2017-07-05T22:06:50Z")

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