We have a maven build that runs in jenkins in amazon ec2 instances. The total build takes 20-30min and roughly every other run it fails because it cant download artifacts from maven central. This is the failing part of the log:
[DEBUG] Lifecycle default -> [validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy] [DEBUG] Lifecycle clean -> [pre-clean, clean, post-clean] [DEBUG] Lifecycle site -> [pre-site, site, post-site, site-deploy] [DEBUG] Using transporter WagonTransporter with priority -1.0 for https://repo.maven.apache.org/maven2 [DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for https://repo.maven.apache.org/maven2 Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-failsafe-plugin/2.18.1/maven-failsafe-plugin-2.18.1.pom Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: I/O exception (java.net.SocketException) caught when processing request to {s}->https://repo.maven.apache.org:443: Connection reset Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: Retrying request to {s}->https://repo.maven.apache.org:443 Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: I/O exception (java.net.SocketException) caught when processing request to {s}->https://repo.maven.apache.org:443: Connection reset Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: Retrying request to {s}->https://repo.maven.apache.org:443 Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: I/O exception (java.net.SocketException) caught when processing request to {s}->https://repo.maven.apache.org:443: Connection reset Feb 03, 2017 3:39:00 PM org.apache.http.impl.execchain.RetryExec execute INFO: Retrying request to {s}->https://repo.maven.apache.org:443 The interesting thing is that it runs fine for 20min downloading from maven central and our own repos, but then fails on the exact same download every other time. This makes me think it's not due to connection problems, as then it would fail on other downloads randomly.
After googling I found that it could be because of Ipv4 vs Ipv6 issues, so I tried setting java.net.prefetIPv4stack=true in the build, but that didn't help.
The command to run mvn is:
mvn -X -e clean deploy -U -Djava.net.preferIPv4Stack=true I've also tried to increase -Xmx in both MAVEN_OPTS and JAVA_OPTS (I read somewhere that maven needs to be able to keep all dependencies in RAM, not sure if true tho), but without success.
Do you have any other ideas that I can try?
Edit: Added stacktrace
[ERROR] Plugin org.apache.maven.plugins:maven-failsafe-plugin:2.18.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-failsafe-plugin:jar:2.18.1: Could not transfer artifact org.apache.maven.plugins:maven-failsafe-plugin:pom:2.18.1 from/to central (https://repo.maven.apache.org/maven2): Connection reset -> [Help 1] org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.plugins:maven-failsafe-plugin:2.18.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-failsafe-plugin:jar:2.18.1 at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:117) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:179) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:284) at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:241) at org.apache.maven.lifecycle.internal.DefaultLifecycleMappingDelegate.calculateLifecycleMappings(DefaultLifecycleMappingDelegate.java:110) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateLifecycleMappings(DefaultLifecycleExecutionPlanCalculator.java:266) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateMojoExecutions(DefaultLifecycleExecutionPlanCalculator.java:217) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan(DefaultLifecycleExecutionPlanCalculator.java:127) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan(DefaultLifecycleExecutionPlanCalculator.java:145) at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan(BuilderCommon.java:96) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:109) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288) at org.apache.maven.cli.MavenCli.main(MavenCli.java:199) 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:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven.plugins:maven-failsafe-plugin:jar:2.18.1 at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:282) at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:198) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.readArtifactDescriptor(DefaultRepositorySystem.java:287) at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:103) ... 27 more Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not transfer artifact org.apache.maven.plugins:maven-failsafe-plugin:pom:2.18.1 from/to central (https://repo.maven.apache.org/maven2): Connection reset at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223) at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:267) ... 30 more Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact org.apache.maven.plugins:maven-failsafe-plugin:pom:2.18.1 from/to central (https://repo.maven.apache.org/maven2): Connection reset at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:43) at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:355) at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67) at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581) at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421) ... 33 more Caused by: org.apache.maven.wagon.TransferFailedException: Connection reset at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1066) at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:960) at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:116) at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88) at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61) at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run(WagonTransporter.java:560) at org.eclipse.aether.transport.wagon.WagonTransporter.execute(WagonTransporter.java:427) at org.eclipse.aether.transport.wagon.WagonTransporter.get(WagonTransporter.java:404) at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:447) at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:350) ... 38 more Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:209) at java.net.SocketInputStream.read(SocketInputStream.java:141) at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) at sun.security.ssl.InputRecord.read(InputRecord.java:503) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973) at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930) at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136) at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:152) at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:270) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161) at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:153) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.execute(AbstractHttpClientWagon.java:832) at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:983) ... 47 more [ERROR] [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException