Details
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Bug
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Status: Resolved (View Workflow)
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Minor
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Resolution: Cannot Reproduce
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System Properties
Name ↓
Value
awt.toolkit sun.awt.X11.XToolkit
com.sun.org.apache.xml.internal.dtm.DTMManager com.sun.org.apache.xml.internal.dtm.ref.DTMManagerDefault
executable-war /usr/share/jenkins/jenkins.war
file.encoding UTF-8
file.encoding.pkg sun.io
file.separator /
guice.disable.misplaced.annotation.check true
hudson.diyChunking true
java.awt.graphicsenv sun.awt.X11GraphicsEnvironment
java.awt.headless true
java.awt.printerjob sun.print.PSPrinterJob
java.class.path /usr/share/jenkins/jenkins.war
java.class.version 51.0
java.endorsed.dirs /usr/lib/jvm/java-7-openjdk-i386/jre/lib/endorsed
java.ext.dirs /usr/lib/jvm/java-7-openjdk-i386/jre/lib/ext:/usr/java/packages/lib/ext
java.home /usr/lib/jvm/java-7-openjdk-i386/jre
java.io.tmpdir /tmp
java.library.path /usr/java/packages/lib/i386:/usr/lib/i386-linux-gnu/jni:/lib/i386-linux-gnu:/usr/lib/i386-linux-gnu:/usr/lib/jni:/lib:/usr/lib
java.runtime.name OpenJDK Runtime Environment
java.runtime.version 1.7.0_65-b32
java.specification.name Java Platform API Specification
java.specification.vendor Oracle Corporation
java.specification.version 1.7
java.vendor Oracle Corporation
java.vendor.url http://java.oracle.com/
java.vendor.url.bug http://bugreport.sun.com/bugreport/
java.version 1.7.0_65
java.vm.info mixed mode, sharing
java.vm.name OpenJDK Client VM
java.vm.specification.name Java Virtual Machine Specification
java.vm.specification.vendor Oracle Corporation
java.vm.specification.version 1.7
java.vm.vendor Oracle Corporation
java.vm.version 24.65-b04
javax.xml.parsers.DocumentBuilderFactory com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
jna.platform.library.path /usr/lib/i386-linux-gnu:/lib/i386-linux-gnu:/usr/lib:/lib
jnidispatch.path /tmp/jna--1712433994/jna9004311179259744202.tmp
line.separator
mail.smtp.sendpartial true
mail.smtps.sendpartial true
os.arch i386
os.name Linux
os.version 3.13.0-40-generic
path.separator :
smack.debuggerClass hudson.plugins.jabber.im.transport.JabberConnectionDebugger
sun.arch.data.model 32
sun.boot.class.path /usr/lib/jvm/java-7-openjdk-i386/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/classes
sun.boot.library.path /usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386
sun.cpu.endian little
sun.cpu.isalist
sun.font.fontmanager sun.awt.X11FontManager
sun.io.unicode.encoding UnicodeLittle
sun.java.command /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=9090 --prefix=/
sun.java.launcher SUN_STANDARD
sun.jnu.encoding UTF-8
sun.management.compiler HotSpot Client Compiler
sun.os.patch.level unknown
svnkit.http.methods Digest,Basic,NTLM,Negotiate
svnkit.ssh2.persistent false
user.country US
user.dir /
user.home /var/lib/jenkins
user.language en
user.name jenkins
user.timezone Etc/UTC
Environment Variables
Name ↓
Value
_ /usr/bin/daemon
CRASH_HOME /var/lib/jenkins/.gvm/crash/current
GAIDEN_HOME /var/lib/jenkins/.gvm/gaiden/current
GLIDE_HOME /var/lib/jenkins/.gvm/glide/current
GRADLE_HOME /var/lib/jenkins/.gvm/gradle/current
GRAILS_HOME /var/lib/jenkins/.gvm/grails/current
GRIFFON_HOME /var/lib/jenkins/.gvm/griffon/current
GROOVY_HOME /var/lib/jenkins/.gvm/groovy/current
GROOVYSERV_HOME /var/lib/jenkins/.gvm/groovyserv/current
GVM_BROADCAST_SERVICE http://cast.gvm.io
GVM_DIR /var/lib/jenkins/.gvm
GVM_INIT true
GVM_PLATFORM Linux
GVM_SERVICE http://api.gvmtool.net
GVM_VERSION 2.1.0
HOME /var/lib/jenkins
JAVA_HOME /usr/lib/jvm/java-6-openjdk-i386
JBAKE_HOME /var/lib/jenkins/.gvm/jbake/current
JENKINS_HOME /var/lib/jenkins
LANG en_US.UTF-8
LAZYBONES_HOME /var/lib/jenkins/.gvm/lazybones/current
LC_ALL en_US.UTF-8
LOGNAME jenkins
MAIL /var/mail/jenkins
NODE_PATH /usr/lib/nodejs:/usr/lib/node_modules:/usr/share/javascript
PATH /var/lib/jenkins/.gvm/vertx/current/bin:/var/lib/jenkins/.gvm/springboot/current/bin:/var/lib/jenkins/.gvm/lazybones/current/bin:/var/lib/jenkins/.gvm/jbake/current/bin:/var/lib/jenkins/.gvm/groovyserv/current/bin:/var/lib/jenkins/.gvm/groovy/current/bin:/var/lib/jenkins/.gvm/griffon/current/bin:/var/lib/jenkins/.gvm/grails/current/bin:/var/lib/jenkins/.gvm/gradle/current/bin:/var/lib/jenkins/.gvm/glide/current/bin:/var/lib/jenkins/.gvm/gaiden/current/bin:/var/lib/jenkins/.gvm/crash/current/bin:/var/lib/jenkins/tools/AWS-ElasticBeanstalk-CLI-2.6.0/eb/linux/python2.7:/var/lib/jenkins/tools/google_appengine:/var/lib/jenkins/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
PWD /var/lib/jenkins
SHELL /bin/bash
SHLVL 1
SPRINGBOOT_HOME /var/lib/jenkins/.gvm/springboot/current
TERM linux
USER jenkins
VERTX_HOME /var/lib/jenkins/.gvm/vertx/current
XDG_SESSION_COOKIE 22906583fc506b9c1503c53b00011036-1417420341.720687-1902603104
Plugins
Name ↓
Version
Enabled
Pinned
ant 1.2 true true
antisamy-markup-formatter 1.3 true true
bazaar 1.22 true false
build-pipeline-plugin 1.4.5 true false
conditional-buildstep 1.3.3 true false
copy-to-slave 1.4.3 true false
credentials 1.18 true true
cvs 2.12 true true
docker-build-step 1.14 true false
dockerhub 1.0 true false
dropdown-viewstabbar-plugin 1.6 true false
ec2 1.24 true false
email-ext 2.39 true false
external-monitor-job 1.4 true true
git 2.3.1 true false
git-client 1.12.0 true false
github 1.10 true false
github-api 1.59 true false
gradle 1.24 true false
grails 1.7 true false
instant-messaging 1.30 true false
jabber 1.30 true false
javadoc 1.3 true true
jobConfigHistory 2.10 true false
jquery 1.7.2-1 true false
junit 1.2 true true
ldap 1.11 true true
locks-and-latches 0.6 true false
mailer 1.12 true true
mapdb-api 1.0.6.0 true false
matrix-auth 1.2 true true
matrix-project 1.4 true true
maven-plugin 2.8 true true
multiple-scms 0.3 true false
next-build-number 1.1 true false
node-iterator-api 1.5 true false
pam-auth 1.2 true true
parameterized-trigger 2.25 true false
promoted-builds 2.19 true false
run-condition 1.0 true false
sauce-ondemand 1.107 true false
scis-ad 1.2 true false
scm-api 0.2 true false
script-security 1.10 true false
selenium 2.4.1 true false
ssh-agent 1.5 true false
ssh-credentials 1.10 true true
ssh-slaves 1.9 true true
subversion 2.4.5 true true
token-macro 1.10 true false
translation 1.12 true true
windows-slaves 1.0 true false
xvfb 1.0.13 true false
xvnc 1.20 true false
System Properties Name ↓ Value awt.toolkit sun.awt.X11.XToolkit com.sun.org.apache.xml.internal.dtm.DTMManager com.sun.org.apache.xml.internal.dtm.ref.DTMManagerDefault executable-war /usr/share/jenkins/jenkins.war file.encoding UTF-8 file.encoding.pkg sun.io file.separator / guice.disable.misplaced.annotation.check true hudson.diyChunking true java.awt.graphicsenv sun.awt.X11GraphicsEnvironment java.awt.headless true java.awt.printerjob sun.print.PSPrinterJob java.class.path /usr/share/jenkins/jenkins.war java.class.version 51.0 java.endorsed.dirs /usr/lib/jvm/java-7-openjdk-i386/jre/lib/endorsed java.ext.dirs /usr/lib/jvm/java-7-openjdk-i386/jre/lib/ext:/usr/java/packages/lib/ext java.home /usr/lib/jvm/java-7-openjdk-i386/jre java.io.tmpdir /tmp java.library.path /usr/java/packages/lib/i386:/usr/lib/i386-linux-gnu/jni:/lib/i386-linux-gnu:/usr/lib/i386-linux-gnu:/usr/lib/jni:/lib:/usr/lib java.runtime.name OpenJDK Runtime Environment java.runtime.version 1.7.0_65-b32 java.specification.name Java Platform API Specification java.specification.vendor Oracle Corporation java.specification.version 1.7 java.vendor Oracle Corporation java.vendor.url http://java.oracle.com/ java.vendor.url.bug http://bugreport.sun.com/bugreport/ java.version 1.7.0_65 java.vm.info mixed mode, sharing java.vm.name OpenJDK Client VM java.vm.specification.name Java Virtual Machine Specification java.vm.specification.vendor Oracle Corporation java.vm.specification.version 1.7 java.vm.vendor Oracle Corporation java.vm.version 24.65-b04 javax.xml.parsers.DocumentBuilderFactory com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl jna.platform.library.path /usr/lib/i386-linux-gnu:/lib/i386-linux-gnu:/usr/lib:/lib jnidispatch.path /tmp/jna--1712433994/jna9004311179259744202.tmp line.separator mail.smtp.sendpartial true mail.smtps.sendpartial true os.arch i386 os.name Linux os.version 3.13.0-40-generic path.separator : smack.debuggerClass hudson.plugins.jabber.im.transport.JabberConnectionDebugger sun.arch.data.model 32 sun.boot.class.path /usr/lib/jvm/java-7-openjdk-i386/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-i386/jre/classes sun.boot.library.path /usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386 sun.cpu.endian little sun.cpu.isalist sun.font.fontmanager sun.awt.X11FontManager sun.io.unicode.encoding UnicodeLittle sun.java.command /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=9090 --prefix=/ sun.java.launcher SUN_STANDARD sun.jnu.encoding UTF-8 sun.management.compiler HotSpot Client Compiler sun.os.patch.level unknown svnkit.http.methods Digest,Basic,NTLM,Negotiate svnkit.ssh2.persistent false user.country US user.dir / user.home /var/lib/jenkins user.language en user.name jenkins user.timezone Etc/UTC Environment Variables Name ↓ Value _ /usr/bin/daemon CRASH_HOME /var/lib/jenkins/.gvm/crash/current GAIDEN_HOME /var/lib/jenkins/.gvm/gaiden/current GLIDE_HOME /var/lib/jenkins/.gvm/glide/current GRADLE_HOME /var/lib/jenkins/.gvm/gradle/current GRAILS_HOME /var/lib/jenkins/.gvm/grails/current GRIFFON_HOME /var/lib/jenkins/.gvm/griffon/current GROOVY_HOME /var/lib/jenkins/.gvm/groovy/current GROOVYSERV_HOME /var/lib/jenkins/.gvm/groovyserv/current GVM_BROADCAST_SERVICE http://cast.gvm.io GVM_DIR /var/lib/jenkins/.gvm GVM_INIT true GVM_PLATFORM Linux GVM_SERVICE http://api.gvmtool.net GVM_VERSION 2.1.0 HOME /var/lib/jenkins JAVA_HOME /usr/lib/jvm/java-6-openjdk-i386 JBAKE_HOME /var/lib/jenkins/.gvm/jbake/current JENKINS_HOME /var/lib/jenkins LANG en_US.UTF-8 LAZYBONES_HOME /var/lib/jenkins/.gvm/lazybones/current LC_ALL en_US.UTF-8 LOGNAME jenkins MAIL /var/mail/jenkins NODE_PATH /usr/lib/nodejs:/usr/lib/node_modules:/usr/share/javascript PATH /var/lib/jenkins/.gvm/vertx/current/bin:/var/lib/jenkins/.gvm/springboot/current/bin:/var/lib/jenkins/.gvm/lazybones/current/bin:/var/lib/jenkins/.gvm/jbake/current/bin:/var/lib/jenkins/.gvm/groovyserv/current/bin:/var/lib/jenkins/.gvm/groovy/current/bin:/var/lib/jenkins/.gvm/griffon/current/bin:/var/lib/jenkins/.gvm/grails/current/bin:/var/lib/jenkins/.gvm/gradle/current/bin:/var/lib/jenkins/.gvm/glide/current/bin:/var/lib/jenkins/.gvm/gaiden/current/bin:/var/lib/jenkins/.gvm/crash/current/bin:/var/lib/jenkins/tools/AWS-ElasticBeanstalk-CLI-2.6.0/eb/linux/python2.7:/var/lib/jenkins/tools/google_appengine:/var/lib/jenkins/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games PWD /var/lib/jenkins SHELL /bin/bash SHLVL 1 SPRINGBOOT_HOME /var/lib/jenkins/.gvm/springboot/current TERM linux USER jenkins VERTX_HOME /var/lib/jenkins/.gvm/vertx/current XDG_SESSION_COOKIE 22906583fc506b9c1503c53b00011036-1417420341.720687-1902603104 Plugins Name ↓ Version Enabled Pinned ant 1.2 true true antisamy-markup-formatter 1.3 true true bazaar 1.22 true false build-pipeline-plugin 1.4.5 true false conditional-buildstep 1.3.3 true false copy-to-slave 1.4.3 true false credentials 1.18 true true cvs 2.12 true true docker-build-step 1.14 true false dockerhub 1.0 true false dropdown-viewstabbar-plugin 1.6 true false ec2 1.24 true false email-ext 2.39 true false external-monitor-job 1.4 true true git 2.3.1 true false git-client 1.12.0 true false github 1.10 true false github-api 1.59 true false gradle 1.24 true false grails 1.7 true false instant-messaging 1.30 true false jabber 1.30 true false javadoc 1.3 true true jobConfigHistory 2.10 true false jquery 1.7.2-1 true false junit 1.2 true true ldap 1.11 true true locks-and-latches 0.6 true false mailer 1.12 true true mapdb-api 1.0.6.0 true false matrix-auth 1.2 true true matrix-project 1.4 true true maven-plugin 2.8 true true multiple-scms 0.3 true false next-build-number 1.1 true false node-iterator-api 1.5 true false pam-auth 1.2 true true parameterized-trigger 2.25 true false promoted-builds 2.19 true false run-condition 1.0 true false sauce-ondemand 1.107 true false scis-ad 1.2 true false scm-api 0.2 true false script-security 1.10 true false selenium 2.4.1 true false ssh-agent 1.5 true false ssh-credentials 1.10 true true ssh-slaves 1.9 true true subversion 2.4.5 true true token-macro 1.10 true false translation 1.12 true true windows-slaves 1.0 true false xvfb 1.0.13 true false xvnc 1.20 true false
Description
We are seeing slaves being displayed as offline with an Unexpected termination of channel IO exception. The slaves are actually running as seen in our AWS Management Console but the connection between jenkins master and the slave is broken. This behavior is fairly recent starting with maybe 1.584.
Attachments
Issue Links
- duplicates
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- Resolved
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- is related to
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- Open
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- relates to
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- Open
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JENKINS-48810 How to disable hudson.remoting.RemoteInvocationHandler$Unexporter reportStats?
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- Resolved
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Activity
shraddha Magar
added a comment - Also I have restarted Jenkins instance then agent which is configured on windows with JNLP got offline and its not coming online, its showing below error.
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among http://x.x.x.x:x/jenkins/
Aug 29, 2018 1:43:04 PM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Agent discovery successful
Agent address: x.x.x.x
Agent port: 37091
Identity: 51:a8:0d:a8:18:dd:db:d8:ea:18:b7:98:da:76:b2:ae
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to x.x.x.x:37091
Aug 29, 2018 1:43:35 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to x.x.x.x:37091 (retrying:2)
java.io.IOException: Failed to connect to x.x.x.x:37091
at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoint.java:242)
at hudson.remoting.Engine.connect(Engine.java:686)
at hudson.remoting.Engine.innerRun(Engine.java:547)
at hudson.remoting.Engine.run(Engine.java:469)
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)
at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoint.java:203)
... 3 more
Could you please help me out please?
just replaced master IP with x.x.x.x.
shraddha Magar
added a comment - Also I have restarted Jenkins instance then agent which is configured on windows with JNLP got offline and its not coming online, its showing below error.
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among http://x.x.x.x:x/jenkins/
Aug 29, 2018 1:43:04 PM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Agent discovery successful
Agent address: x.x.x.x
Agent port: 37091
Identity: 51:a8:0d:a8:18:dd:db:d8:ea:18:b7:98:da:76:b2:ae
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Aug 29, 2018 1:43:04 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to x.x.x.x:37091
Aug 29, 2018 1:43:35 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to x.x.x.x:37091 (retrying:2)
java.io.IOException: Failed to connect to x.x.x.x:37091
at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoint.java:242)
at hudson.remoting.Engine.connect(Engine.java:686)
at hudson.remoting.Engine.innerRun(Engine.java:547)
at hudson.remoting.Engine.run(Engine.java:469)
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)
at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoint.java:203)
... 3 more
Could you please help me out please?
just replaced master IP with x.x.x.x. This Windows Agent is a JNLP Agent, so your issue is not related to SSH Slaves plugin.
It seems a network/configuration issue, not a bug, ask on the google user groups see https://wiki.jenkins.io/display/JENKINS/How+to+report+an+issue
shraddha Magar
added a comment - yes. this agent is configured through JNLP.
and other issue is for AIX machine. we have agents configured on both AIX and Windows. we are using ssh slave plugin 1.26.
shraddha Magar
added a comment - yes. this agent is configured through JNLP.
and other issue is for AIX machine. we have agents configured on both AIX and Windows. we are using ssh slave plugin 1.26. 
Michael Spiegel
added a comment - I'm posting here because this was the most prominent result in google and I wanna share my solution in case it also helps somebody else.
The last lines in our jenkins node log on the master instance were:
Sep 23, 2022 10:56:28 AM null INFO: Launching Jenkins agent via plugin SSH: java -jar /tmp/agent.jar Sep 23, 2022 10:56:28 AM null WARNING: Error: Exception: java.io.EOFException: unexpected stream termination
Running the command `java -jar /tmp/agent.jar` on the node revealed that the used java version could not run the new jar - which was probably introduced by some jenkins und plugin update.
Upgrading the node host from OpenJDK 8 to 11 fixed the problem for us.
Michael Spiegel
added a comment - I'm posting here because this was the most prominent result in google and I wanna share my solution in case it also helps somebody else.
The last lines in our jenkins node log on the master instance were:
Sep 23, 2022 10:56:28 AM null
INFO: Launching Jenkins agent via plugin SSH: java -jar /tmp/agent.jar
Sep 23, 2022 10:56:28 AM null
WARNING: Error: Exception: java.io.EOFException: unexpected stream termination
Running the command `java -jar /tmp/agent.jar` on the node revealed that the used java version could not run the new jar - which was probably introduced by some jenkins und plugin update.
Upgrading the node host from OpenJDK 8 to 11 fixed the problem for us. 
Which SSH Slaves Plugin version do you use? Did you add the `-workDir AGENT_WORK_DIR` parameter to your suffix command configuration to grab the logs?
https://github.com/jenkinsci/remoting/blob/master/docs/workDir.md