# ERROR	logstash/async.go:256	Failed to publish events caused by: lumberjack protocol error & client is not connected

**URL:** <https://discuss.elastic.co/t/error-logstash-async-go-256-failed-to-publish-events-caused-by-lumberjack-protocol-error-client-is-not-connected/206860>\
**Category:** Logstash\
**Created:** [November 6, 2019, 8:30pm UTC](https://discuss.elastic.co/t/error-logstash-async-go-256-failed-to-publish-events-caused-by-lumberjack-protocol-error-client-is-not-connected/206860 "2019-11-06T20:30:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sreekanth3](https://avatars.discourse-cdn.com/v4/letter/s/4491bb/32.png) [@Sreekanth3](https://discuss.elastic.co/u/Sreekanth3)\
**Post date:** [November 6, 2019, 8:30pm UTC](https://discuss.elastic.co/t/error-logstash-async-go-256-failed-to-publish-events-caused-by-lumberjack-protocol-error-client-is-not-connected/206860/1 "2019-11-06T20:30:29Z")

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I have enabled SSL on the logstash and I want to try validate logstash to elastic over ssl and filebeat to logstash with non-ssl .

```
	`Connection to backoff(async(tcp://XXX.XXX.X.XXX:5045)) established`
     `Failed to publish events caused by: lumberjack protocol error`
     `Failed to publish events caused by: client is not connected

```

and the logstash also is throwing errors after enabling SSL on it.

`[INFO][org.logstash.beats.BeatsHandler] [local: 0.0.0.0:5045, remote: 192.168.1.181:60433] Handling exception: javax.net.ssl.SSLHandshakeException: error:100000f7:SSL routines:OPENSSL_internal:WRONG_VERSION_NUMBER`  
`[2019-11-07T01:50:54,949][WARN][io.netty.channel.DefaultChannelPipeline] An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: error:100000f7:SSL routines:OPENSSL_internal:WRONG_VERSION_NUMBER`  
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:472) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:644) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:579) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:496) ~[netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458) [netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897) [netty-all-4.1.30.Final.jar:4.1.30.Final]  
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-all-4.1.30.Final.jar:4.1.30.Final]  
at java.lang.Thread.run(Thread.java:748) [?:1.8.0\_181]

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 4, 2019, 8:30pm UTC](https://discuss.elastic.co/t/error-logstash-async-go-256-failed-to-publish-events-caused-by-lumberjack-protocol-error-client-is-not-connected/206860/2 "2019-12-04T20:30:29Z")

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