I am tyring to access web app deployed on Apache Tomcat at local machine . Everything was working fine till sometime ago . and now i am getting this error continuously .
error :
org.apache.http.conn.HttpHostConnectException: Connection to `http://localhost refused
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:158)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:562)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
at TestHttpGet.main(TestHttpGet.java:45)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:385)
at java.net.Socket.connect(Socket.java:546)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:120)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
... 8 more
code line where error is :
HttpResponse response = httpClient.execute(httpPost);
Related
SolrIndexer: starting at 2015-10-15 10:13:00
Adding 90 documents:
java.io.IOException: Job failed!
SolrDeleteDuplicates: starting at 2015-10-15 10:13:11
SolrDeleteDuplicates: Solr url: http://localhost:8939/solr/
Exception in thread "main" java.io.IOException: org.apache.solr.client.solrj.SolrServerException: java.net.ConnectException: Connection refused: connect
at org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat.getSplits(SolrDeleteDuplicates.java:200)
at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:810)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:781)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:730)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1249)
at org.apache.nutch.indexer.solr.SolrDeleteDuplicates.dedup(SolrDeleteDuplicates.java:373)
at org.apache.nutch.indexer.solr.SolrDeleteDuplicates.dedup(SolrDeleteDuplicates.java:353)
at org.apache.nutch.crawl.Crawl.run(Crawl.java:153)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.Crawl.main(Crawl.java:55)
Caused by: org.apache.solr.client.solrj.SolrServerException: java.net.ConnectException: Connection refused: connect
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:478)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:244)
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:89)
at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:118)
at org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat.getSplits(SolrDeleteDuplicates.java:198)
... 9 more
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:286)
at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:422)
... 13 more
How to resolve this issue?
Your solr url is not valid. You need to write the core as well. By default the core is collection1. Therefore, in your case the url is http://localhost:8983/solr/collection1
Solr doesn't seem to be running - Connection refused indicates that something is unable to contact whatever it should contact. Your configuration is probably broken, or you haven't started Solr or you're running on a different port.
I am using JavaMail to read the java emails from gmail account. The code is working pretty fine on my Windows 7 machine. But, the same code errors out (below mentioned is the error) after running on Windows 2k8 machine. Absolutely no change in the code.
Can some one please help to know the reason for this failure?
Error :
javax.mail.MessagingException: Connection timed out: connect;
nested exception is:
java.net.ConnectException: Connection timed out: connect
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:618)
at javax.mail.Service.connect(Service.java:291)
at javax.mail.Service.connect(Service.java:172)
at com.vmware.cmpaas.uiqe.util.EmailUtil.getActivationLink(EmailUtil.java:42)
at Temp_Test.main(Temp_Test.java:17)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
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.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:160)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:284)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:227)
at com.sun.mail.iap.Protocol.<init>(Protocol.java:109)
at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:104)
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:585)
... 4 more
Exception in thread "main" java.lang.NullPointerException
at Temp_Test.main(Temp_Test.java:18)
My JMX client failed to connect to JMX server while I have started to use the JMX authentication.
I use Java 8 and Centos6.
I have configured the following settings:
JAVA_OPTS="${JAVA_OPTS} -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.password.file=<path to password file> -Dcom.sun.management.jmxremote.access.file=<path to access file>"
Unfortunately my JMX client failed to connect to JMX server with the following exception:
java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
java.net.ConnectException: Connection refused]
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369)
at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)
at org.apache.catalina.ant.jmx.JMXAccessorTask.createJMXConnection(JMXAccessorTask.java:384)
at org.apache.catalina.ant.jmx.JMXAccessorTask.accessJMXConnection(JMXAccessorTask.java:439)
at org.apache.catalina.ant.jmx.JMXAccessorTask.getJMXConnection(JMXAccessorTask.java:477)
at org.apache.catalina.ant.jmx.JMXAccessorTask.execute(JMXAccessorTask.java:345)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:435)
at org.apache.tools.ant.Target.performTasks(Target.java:456)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)
at org.apache.tools.ant.Project.executeTarget(Project.java:1364)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1248)
at org.apache.tools.ant.Main.runBuild(Main.java:851)
at org.apache.tools.ant.Main.startAnt(Main.java:235)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
Caused by: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
java.net.ConnectException: Connection refused]
at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:122)
at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1957)
at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1924)
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
... 22 more
Caused by: java.rmi.ConnectException: Connection refused to host: localhost; 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:342)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:118)
... 27 more
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
... 32 more
To solve it I read carefully the documentation:
http://docs.oracle.com/javase/7/docs/technotes/guides/management/agent.html#gdeup
The following comment about the password file is very important:
You must ensure that only the owner has read and write permissions on this file, since it contains the passwords in clear text. For security reasons, the system checks that the file is only readable by the owner and exits with an error if it is not.
I set read permission to a user and my client successfully connects to the JMX server:
chmod 400 <path to password file>
I installed oozie 4.0.1 on a hadoop 2.2 cluster. After that, I tried to run a oozie job(java action). Everything seems to be fine :
When I run job.properties,it gives the job id as usually.
When i checked oozie console job is in running state.
It runs the java code.
However, oozie suddenly stops and shows the following error.
ACTION[0000001-140526105244150-oozie-labu-W#javaMainAction] Exception in check(). Message[java.net.ConnectException: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused]
java.io.IOException: java.net.ConnectException: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:331)
at org.apache.hadoop.mapred.ClientServiceDelegate.getJobStatus(ClientServiceDelegate.java:416)
at org.apache.hadoop.mapred.YARNRunner.getJobStatus(YARNRunner.java:522)
at org.apache.hadoop.mapreduce.Cluster.getJob(Cluster.java:183)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:580)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:578)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
at org.apache.hadoop.mapred.JobClient.getJobUsingCluster(JobClient.java:578)
at org.apache.hadoop.mapred.JobClient.getJob(JobClient.java:596)
at org.apache.oozie.action.hadoop.JavaActionExecutor.getRunningJob(JavaActionExecutor.java:992)
at org.apache.oozie.action.hadoop.JavaActionExecutor.check(JavaActionExecutor.java:1005)
at org.apache.oozie.command.wf.ActionCheckXCommand.execute(ActionCheckXCommand.java:177)
at org.apache.oozie.command.wf.ActionCheckXCommand.execute(ActionCheckXCommand.java:56)
at org.apache.oozie.command.XCommand.call(XCommand.java:280)
at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730)
at org.apache.hadoop.ipc.Client.call(Client.java:1351)
at org.apache.hadoop.ipc.Client.call(Client.java:1300)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
at com.sun.proxy.$Proxy31.getJobReport(Unknown Source)
at org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.getJobReport(MRClientProtocolPBClientImpl.java:133)
at sun.reflect.GeneratedMethodAccessor44.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:317)
... 19 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:547)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:642)
at org.apache.hadoop.ipc.Client$Connection.access$2600(Client.java:314)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1399)
at org.apache.hadoop.ipc.Client.call(Client.java:1318)
... 27 more
2014-05-26 11:02:15,305 WARN ActionCheckXCommand:542 - USER[labuser] GROUP[-] TOKEN[] APP[WorkflowJavaMainAction] JOB[0000001-140526105244150-oozie-labu-W] ACTION[0000001-140526105244150-oozie-labu-W#javaMainAction] Exception while executing check(). Error Code [ JA006], Message[ JA006: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused]
org.apache.oozie.action.ActionExecutorException: JA006: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.oozie.action.ActionExecutor.convertExceptionHelper(ActionExecutor.java:412)
at org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:392)
at org.apache.oozie.action.hadoop.JavaActionExecutor.check(JavaActionExecutor.java:1095)
at org.apache.oozie.command.wf.ActionCheckXCommand.execute(ActionCheckXCommand.java:177)
at org.apache.oozie.command.wf.ActionCheckXCommand.execute(ActionCheckXCommand.java:56)
at org.apache.oozie.command.XCommand.call(XCommand.java:280)
at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Call From labuser-VirtualBox/127.0.1.1 to localhost:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730)
at org.apache.hadoop.ipc.Client.call(Client.java:1351)
at org.apache.hadoop.ipc.Client.call(Client.java:1300)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
at com.sun.proxy.$Proxy31.getJobReport(Unknown Source)
at org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.getJobReport(MRClientProtocolPBClientImpl.java:133)
at sun.reflect.GeneratedMethodAccessor44.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:317)
at org.apache.hadoop.mapred.ClientServiceDelegate.getJobStatus(ClientServiceDelegate.java:416)
at org.apache.hadoop.mapred.YARNRunner.getJobStatus(YARNRunner.java:522)
at org.apache.hadoop.mapreduce.Cluster.getJob(Cluster.java:183)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:580)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:578)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
at org.apache.hadoop.mapred.JobClient.getJobUsingCluster(JobClient.java:578)
at org.apache.hadoop.mapred.JobClient.getJob(JobClient.java:596)
at org.apache.oozie.action.hadoop.JavaActionExecutor.getRunningJob(JavaActionExecutor.java:992)
at org.apache.oozie.action.hadoop.JavaActionExecutor.check(JavaActionExecutor.java:1005)
... 7 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:547)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:642)
at org.apache.hadoop.ipc.Client$Connection.access$2600(Client.java:314)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1399)
at org.apache.hadoop.ipc.Client.call(Client.java:1318)
... 27 more
2014-05-26 11:02:15,307 INFO ActionCheckXCommand:539 - USER[labuser] GROUP[-] TOKEN[] APP[WorkflowJavaMainAction] JOB[0000001-140526105244150-oozie-labu-W] ACTION[0000001-140526105244150-oozie-labu-W#javaMainAction] Next Retry, Attempt Number [1] in [60,000] milliseconds
What is the problem ?
If you are working in hadoop-2.2.0 you must start job historyserver to avoid the above mentioned error.
By default historyserver was located in hadoop/sbin. while starting hadoop some times jobhistory server will not run so must start jobhistory server manually using below command.
hadoop/sbin/mr-jobhistory-daemon.sh start historyserver
I am using MySQL 5.1 and my connector version is mysql-connector-java-5.1.7. I am getting following exception frequently. What is the issue?
Dec 24, 2009 10:29:20 AM org.apache.catalina.core.StandardHostValve status
WARNING: Exception Processing ErrorPage[errorCode=404, location=/error.jsp]
ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:327)
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:293)
at org.apache.catalina.connector.Response.flushBuffer(Response.java:537)
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:286)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Connection reset by peer: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:746)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:433)
at org.apache.coyote.http11.InternalOutputBuffer.flush(InternalOutputBuffer.java:304)
at org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:991)
at org.apache.coyote.Response.action(Response.java:182)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:322)
... 13 more
Going by the stacktrace, as Jim said ,it does not involve the MySql connector. Its tomcat closing the socket on its end for some reason while serving error.jsp to the client.You should check the server logs to zero in on the error.