Server sent event - Stream is not reconnecting after few disconnections - spring-boot

I built a Spring boot application using this https://github.com/renatoaguimaraes/spring-reactive-kafka-sse.git while developing front end application I keep disconnecting and reconnecting SSE stream after a few successful reconnections I am getting below error and stream is not connecting automatically
java.io.IOException: An established connection was aborted by the
software in your host machine
at sun.nio.ch.SocketDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
at sun.nio.ch.IOUtil.write(IOUtil.java:65)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134)
at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157)
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1276)
at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670)
at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:607)
at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:597)
at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:646)
at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:169)
at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:252)
at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1564)
at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:352)
at org.apache.coyote.Response.action(Response.java:173)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317)
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284)
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)
at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297)
at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
at org.springframework.util.StreamUtils.copy(StreamUtils.java:121)
at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:103)
at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:43)
at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:224)
at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitterReturnValueHandler$HttpMessageConvertingHandler.sendInternal(ResponseBodyEmitterReturnValueHandler.java:199)
at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitterReturnValueHandler$HttpMessageConvertingHandler.send(ResponseBodyEmitterReturnValueHandler.java:189)
at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitter.sendInternal(ResponseBodyEmitter.java:189)
at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitter.send(ResponseBodyEmitter.java:183)
at org.springframework.web.servlet.mvc.method.annotation.SseEmitter.send(SseEmitter.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ReactiveTypeHandler$SseEmitterSubscriber.send(ReactiveTypeHandler.java:341)
at org.springframework.web.servlet.mvc.method.annotation.ReactiveTypeHandler$AbstractEmitterSubscriber.run(ReactiveTypeHandler.java:283)
at java.lang.Thread.run(Thread.java:748)

While creating EmitterProcesser set to autoCancel=false
private EmitterProcessor<ServerSentEvent<String>> emitter = EmitterProcessor.create(false);

Related

How to record multi protocol script in jmeter

Is there any way to generate script using web socket protocol?
I want do performance testing for one of my project. that project have multi protocols. like web http/html and web socket.
How can i generate the script for web socket protocol.
If i tried to generate script i were got below error
2019-03-27 16:49:24,712 WARN o.a.j.p.h.p.Proxy: [58109] Unable to negotiate SSL transaction, no keystore?
2019-03-27 16:49:24,728 ERROR o.a.j.p.h.p.Proxy: [58109]  Exception when processing sample
java.io.IOException: Unable to negotiate SSL transaction, no keystore?
at org.apache.jmeter.protocol.http.proxy.Proxy.startSSL(Proxy.java:446) ~[ApacheJMeter_http.jar:4.0 r1823414]
at org.apache.jmeter.protocol.http.proxy.Proxy.run(Proxy.java:194) [ApacheJMeter_http.jar:4.0 r1823414]
2019-03-27 16:49:24,728 WARN o.a.j.p.h.p.Proxy: [58109]  Exception while writing error
java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method) ~[?:1.8.0_191]
at java.net.SocketOutputStream.socketWrite(Unknown Source) ~[?:1.8.0_191]
at java.net.SocketOutputStream.write(Unknown Source) ~[?:1.8.0_191]
at java.io.DataOutputStream.writeBytes(Unknown Source) ~[?:1.8.0_191]
at org.apache.jmeter.protocol.http.proxy.Proxy.writeErrorToClient(Proxy.java:561) [ApacheJMeter_http.jar:4.0 r1823414]
at org.apache.jmeter.protocol.http.proxy.Proxy.run(Proxy.java:258) [ApacheJMeter_http.jar:4.0 r1823414]
2019-03-27 16:49:24,728 INFO o.a.j.p.h.p.ProxyControl: [58110] Creating entry web.qa.np.1shift.io in D:\apache-jmeter-4.0\apache-jmeter-4.0\bin\proxyserver.jks
2019-03-27 16:49:25,566 ERROR o.a.j.p.h.p.Proxy: [58110]  Problem with keystore
java.io.IOException: >> keytool error: java.lang.RuntimeException: java.io.IOException: DNSName components must begin with a letter
As per RFC-1034 domain names must begin with a letter so my expectation is that you're trying to record an IP address or a domain which starts with a digit or something weird.
There are following workarounds:
Use hosts file in order to give the host you're trying to record an alias which will not be in conflict with the aforementioned RFC-1034
Use JMeter Chrome Extension as an alternative to JMeter's HTTP(S) Test Script Recorder
In any case I don't think you will be able to record WebSocket protocol, although it is HTTP-based but it's a different beast which cannot be handled by JMeter's HTTP Request samplers, you will have to mimic WebSocket traffic using JMeter WebSocket Samplers by Peter Doornbosch

MQ light not responding to SSL requests after enabling SSL

I installed the MQ Light server on Windows 7 and followed the steps at https://developer.ibm.com/messaging/docs/mq-light-api/tutorials/security-tutorial/ to enable SSL using a self signed certificate generated by OpenSSL 1.1.0g.
At that point, once I started the MQ light server, my browser timed out trying to do the TLS handshake to the server and any attempt to connect to the server immediately using the Java MQ libraries aborted because the server closed the connection.
I couldn't figure out where the MQ server logs are to check them. Disabling SSL results in the connection working again.
I'm using Oracle Java 8u161 (64-bit).
Any idea what's going on here and how to get SSL working?
Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2397;AMQ9204: Connection to host 'localhost(5671)' rejected. [1=com.ibm.mq.jmqi.JmqiException[CC=2;RC=2397;AMQ9771: SSL handshake failed. [1=javax.net.ssl.SSLHandshakeException[Remote host closed connection during handshake],3=localhost/127.0.0.1:5671 (localhost),4=SSLSocket.startHandshake,5=default]],3=localhost(5671),5=RemoteTCPConnection.protocolConnect]
at com.ibm.mq.jmqi.remote.api.RemoteFAP.jmqiConnect(RemoteFAP.java:2282)
at com.ibm.mq.jmqi.remote.api.RemoteFAP.jmqiConnect(RemoteFAP.java:1294)
at com.ibm.mq.ese.jmqi.InterceptedJmqiImpl.jmqiConnect(InterceptedJmqiImpl.java:376)
at com.ibm.mq.ese.jmqi.ESEJMQI.jmqiConnect(ESEJMQI.java:560)
at com.ibm.mq.MQSESSION.MQCONNX_j(MQSESSION.java:916)
at com.ibm.mq.MQManagedConnectionJ11.<init>(MQManagedConnectionJ11.java:235)
... 16 more
Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2397;AMQ9771: SSL handshake failed. [1=javax.net.ssl.SSLHandshakeException[Remote host closed connection during handshake],3=localhost/127.0.0.1:5671 (localhost),4=SSLSocket.startHandshake,5=default]
at com.ibm.mq.jmqi.remote.impl.RemoteTCPConnection.protocolConnect(RemoteTCPConnection.java:1329)
at com.ibm.mq.jmqi.remote.impl.RemoteConnection.connect(RemoteConnection.java:863)
at com.ibm.mq.jmqi.remote.impl.RemoteConnectionSpecification.getSessionFromNewConnection(RemoteConnectionSpecification.java:409)
at com.ibm.mq.jmqi.remote.impl.RemoteConnectionSpecification.getSession(RemoteConnectionSpecification.java:305)
at com.ibm.mq.jmqi.remote.impl.RemoteConnectionPool.getSession(RemoteConnectionPool.java:146)
at com.ibm.mq.jmqi.remote.api.RemoteFAP.jmqiConnect(RemoteFAP.java:1730)
... 21 more
Caused by: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1002)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
at com.ibm.mq.jmqi.remote.impl.RemoteTCPConnection$6.run(RemoteTCPConnection.java:1298)
at com.ibm.mq.jmqi.remote.impl.RemoteTCPConnection$6.run(RemoteTCPConnection.java:1290)
at java.security.AccessController.doPrivileged(Native Method)
at com.ibm.mq.jmqi.remote.impl.RemoteTCPConnection.protocolConnect(RemoteTCPConnection.java:1290)
... 26 more
Caused by: java.io.EOFException: SSL peer shut down incorrectly
at sun.security.ssl.InputRecord.read(InputRecord.java:505)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:983)
... 33 more

com.datastax.driver.core.TransportException: [/xx.xxx.x.xxx:9042] Cannot connect

I have 2 node in Cassandra cluster with IP:Port aa.aaa.a.aaa:9043(node) and xx.xxx.x.xxx:9043. When i trying to connect using following config **PoolingOptions poolingOptions = new PoolingOptions();
poolingOptions.setCoreConnectionsPerHost(HostDistance.LOCAL, 2)
.setMaxConnectionsPerHost(HostDistance.LOCAL, 4)
.setCoreConnectionsPerHost(HostDistance.REMOTE, 2)
.setMaxConnectionsPerHost(HostDistance.REMOTE, 4)
.setMaxRequestsPerConnection(HostDistance.LOCAL, 200)
.setMaxRequestsPerConnection(HostDistance.REMOTE, 200);
cluster = Cluster.builder()
.addContactPointsWithPorts(socketAddressList)
.withPoolingOptions(poolingOptions)
.withRetryPolicy(DefaultRetryPolicy.INSTANCE)
.withLoadBalancingPolicy(new TokenAwarePolicy(new DCAwareRoundRobinPolicy())).build();
Session session = cluster.connect(cassandraDB);**
I am getting following exception 16/01/14 09:52:45 INFO core.NettyUtil: Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
16/01/14 09:52:46 WARN core.Cluster: ***You listed /xx.xxx.x.xxx:9043 in your contact points, but it could not be reached at startup*
16/01/14 09:52:47 INFO policies.DCAwareRoundRobinPolicy: Using data-center name 'name' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor)ent.Futures$CombinedFuture setExceptionAndMaybeLog
SEVERE: input future failed.
com.datastax.driver.core.TransportException: [/xx.xxx.x.xxx:9042] Cannot connect
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:156)
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:139)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused: /xx.xxx.x.xxx:9042
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)
... 6 more
16/01/14 09:52:47 ERROR core.Session: Error creating pool to /xx.xxx.x.xxx:9042
com.datastax.driver.core.TransportException: [/xx.xxx.x.xxx:9042] Cannot connect
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:156)
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:139)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused: /xx.xxx.x.xxx:9042
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)**
My Question are:
why it is trying to connect on port 9042, while no where i am using this port in code as well as in config file ?
cassandra version: Cassandra 2.2.1
why it is trying to connect on port 9042, while no where i am using this port in code as well as in config file ?
9042 is the default port for the CQL binary protocol.
Can you show us the content of the variable socketAddressList that you passed to the cluster builder ?
Is there any reason you're using port 9043 instead of the default 9042 port ?

Hadoop Balancer fails with - IOException: Couldn't set up IO streams (LeaseRenewer Warning)

I am stumbling across this error while running the Hadoop Balancer via Namenode. Anytips on cracking this. The process is also blocking the current user and giving an Out of Memory error on issuing any other command.
14/05/09 11:30:05 WARN hdfs.LeaseRenewer: Failed to renew lease for [DFSClient_NONMAPREDUCE_-77290934_1] for 936 seconds. Will retry shortly ...
java.io.IOException: Failed on local exception: java.io.IOException: Couldn't set up IO streams; Host Details : local host is: "hadoop01.xx.xx.xx.xx.com/30.0.1.176"; destination host is: "hadoop01.xx.xx.xx.xx.com":8022;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:763)
at org.apache.hadoop.ipc.Client.call(Client.java:1242)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
at $Proxy10.renewLease(Unknown Source)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
at $Proxy10.renewLease(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.renewLease(ClientNamenodeProtocolTranslatorPB.java:458)
at org.apache.hadoop.hdfs.DFSClient.renewLease(DFSClient.java:649)
at org.apache.hadoop.hdfs.LeaseRenewer.renew(LeaseRenewer.java:417)
at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:442)
at org.apache.hadoop.hdfs.LeaseRenewer.access$700(LeaseRenewer.java:71)
at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:298)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Couldn't set up IO streams
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:671)
at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:252)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1291)
at org.apache.hadoop.ipc.Client.call(Client.java:1209)
... 15 more
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:640)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:664)
... 18 more
Once the number of threads created by Hadoop RPC reaches the (ulimit -u) on the node's number of processes, java will report it as an out-of-memory error.
Try increasing the maximum number of processes allowed, i.e. your ulimit -u value.

JMeter: Distributed (Remote) Testing: Unable to run tests remotely

I setup a distributed load testing environment using JMeter. I am running a Linux Virtual Machine (CentOS) on my Windows Vista (Host). The Linux VM is the JMeter Master (client). I have a server (Linux CentOS) that is my JMeter Slave (server).
I did the following:
1) Added the following to client (master) jmeter.properties:
remote_hosts=172.22.222.22:55501 #IP address of the JMeter Slave
client.rmi.localport=55512
mode=Batch
num_sample_threshold=250
2) Added the following to server (slave) jmeter.properties:
server_port=55501
server.rmi.localhostname=172.22.222.22
server.rmi.localport=55511
3) Added the following to server (slave) jmeter-server:
RMI_HOST_DEF=-Djava.rmi.server.hostname=172.22.222.22
4) Then from my Master, I did:
ssh -R 55512:localhost:55512 172.22.222.22
5) Then I started the jmeter server:
sudo ./jmeter-server
I got:
Using local port: 55511
Created remote object: UnicastServerRef [liveRef: [endpoint:[172.22.222.22:55511](local),objID:[637a4bg5:14185b4361e:-7fff, 894250217845851586]]]
6) Then from my Master, I launched the JMeter GUI, and did
Run --> Remote Start --> 172.22.222.22
I got the following error:
2013/10/04 16:03:06 ERROR - jmeter.gui.action.RemoteStart: Failed to initialise remote engine java.rmi.ConnectException: Connection refused to host: 172.22.222.22; nested exception is:
java.net.ConnectException: Connection refused
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:101)
at org.apache.jmeter.engine.ClientJMeterEngine.getEngine(ClientJMeterEngine.java:54)
at org.apache.jmeter.engine.ClientJMeterEngine.<init>(ClientJMeterEngine.java:67)
at org.apache.jmeter.gui.action.RemoteStart.doRemoteInit(RemoteStart.java:176)
at org.apache.jmeter.gui.action.RemoteStart.doAction(RemoteStart.java:79)
at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:81)
at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:63)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:208)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
... 26 more
Can anyone please help me figure out what I did wrong, and how can I resolve this issue?
I tried turning off iptables on both client and server, but I get the same thing:
sudo service iptables stop
sudo chkconfig iptables off
I have seen this issue. You need to setup reverse SSH tunnels from master to client for results transfer. Check this: http://rolfje.wordpress.com/2012/02/16/distributed-jmeter-through-vpn-and-ssl/
See my answer here
I think the only way to work around this is to setup a full featured VPN.

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