# Unable to catch exception - org.elasticsearch.transport.ConnectTransportException **URL:** \ **Category:** Elasticsearch\ **Created:** [June 28, 2013, 4:06am UTC](https://discuss.elastic.co/t/unable-to-catch-exception-org-elasticsearch-transport-connecttransportexception/12572 "2013-06-28T04:06:19Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![ashwini\_harshe](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@ashwini\_harshe](https://discuss.elastic.co/u/ashwini_harshe)\ **Post date:** [June 28, 2013, 4:06am UTC](https://discuss.elastic.co/t/unable-to-catch-exception-org-elasticsearch-transport-connecttransportexception/12572/1 "2013-06-28T04:06:19Z")
Hi, I am using elasticsearc 0.91.1 and I am unable to catch exception org.elasticsearch.transport.ConnectTransportException while connecting to elasticsearch using TransportClient(). Below is my code snippet: try { Settings settings = ImmutableSettings.settingsBuilder().put("client.transport.sniff", true).build(); logger.debug("hostname="+targetConnections.getHostname()+",port="+targetConnections.getPort()); this.client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress( targetConnections.getHostname(), Integer.parseInt(targetConnections.getPort()))); }catch(ElasticSearchException e) { logger.debug(" **_Elasticsearchexception_** \*\*"); } catch(Exception e) { logger.debug("Exception="+e.getMessage()); } logger.debug("Client connected to ES!!!"); On console I get following exception: 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [generic], type [cached], keep\_alive [30s] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [index], type [fixed], size [8], queue\_size [null], reject\_policy [abort], queue\_type [linked] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [bulk], type [fixed], size [8], queue\_size [null], reject\_policy [abort], queue\_type [linked] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [get], type [fixed], size [8], queue\_size [null], reject\_policy [abort], queue\_type [linked] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [search], type [fixed], size [24], queue\_size [1k], reject\_policy [abort], queue\_type [linked] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [percolate], type [fixed], size [8], queue\_size [null], reject\_policy [abort], queue\_type [linked] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [management], type [scaling], min [1], size [5], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [flush], type [scaling], min [1], size [4], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [merge], type [scaling], min [1], size [4], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [refresh], type [scaling], min [1], size [4], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [warmer], type [scaling], min [1], size [4], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] creating thread\_pool [snapshot], type [scaling], min [1], size [4], keep\_alive [5m] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] using worker\_count[16], port[9300-9400], bind\_host[null], publish\_host[null], compress[false], connect\_timeout[30s], connections\_per\_node[2/6/1], receive\_predictor[512kb-\>512kb] 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] node\_sampler\_interval[5s] 27 Jun 2013 20:55:53 DEBUG [elasticsearch[Hijacker][transport\_client\_worker][T#1]{New I/O worker #1}] - Using select timeout of 500 27 Jun 2013 20:55:53 DEBUG [elasticsearch[Hijacker][transport\_client\_worker][T#1]{New I/O worker #1}] - Epoll-bug workaround enabled = false 27 Jun 2013 20:55:53 DEBUG [main] - [Hijacker] adding address [[#transport#-1][inet[localhost/127.0.0.1:9300]]] 27 Jun 2013 20:55:54 DEBUG [elasticsearch[Hijacker][management][T#1]] - [Hijacker] failed to connect to node [[#transport#-1][inet[localhost/127.0.0.1:9300]]], ignoring... org.elasticsearch.transport.ConnectTransportException: [][inet[localhost/127.0.0.1:9300]] connect\_timeout[30s] at org.elasticsearch.transport.netty.NettyTransport.connectToChannelsLight(NettyTransport.java:644) at org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:606) at org.elasticsearch.transport.netty.NettyTransport.connectToNodeLight(NettyTransport.java:575) at org.elasticsearch.transport.TransportService.connectToNodeLight(TransportService.java:131) at org.elasticsearch.client.transport.TransportClientNodesService$SniffNodesSampler$1.run(TransportClientNodesService.java:367) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.ConnectException: Connection refused: no further information: localhost/127.0.0.1:9300 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599) at org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150) at org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105) at org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312) at org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42) at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) ... 3 more 27 Jun 2013 20:55:54 DEBUG [main] - Client connected to ES!!! ---
**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, 2:29am UTC](https://discuss.elastic.co/t/unable-to-catch-exception-org-elasticsearch-transport-connecttransportexception/12572/2 "2017-07-06T02:29:07Z")