Hi,
I want Jenkins to get a threaddump of all forked JVMs automatically in case
of a build timeout (using env entry set by build timeout plugin). If I have
the Job on master, the groovy system script below can find the forked
processes without any problem:
import hudson.*;
import hudson.util.*;
import hudson.model.*;
import hudson.util.ProcessTree.OSProcess;
EnvVars variables = build.getEnvironment();
//if ( variables.get("TIMEOUT_HAPPENED") != null ) {
if (true) {
Map<String,String> expectedEnvironmentVariables = new
HashMap<String,String>();
String buildId = variables.get("BUILD_ID");
if ( buildId != null ) {
expectedEnvironmentVariables.put("BUILD_ID",buildId);
}
String jenkinsServerCookie = variables.get("JENKINS_SERVER_COOKIE");
if ( jenkinsServerCookie != null ) {
expectedEnvironmentVariables.put("JENKINS_SERVER_COOKIE",jenkinsServerCookie);
}
println "Expected env vars " + expectedEnvironmentVariables;
ProcessTree tree = ProcessTree.get();
Iterator<OSProcess> processIterator = tree.iterator();
while( processIterator.hasNext() ) {
OSProcess currentProcess = processIterator.next();
if ( currentProcess.hasMatchingEnvVars(expectedEnvironmentVariables) ) {
println "" + currentProcess.getPid() + " " +
currentProcess.getArguments();
}
}
}
However if the job runs on a slave, of course the groovy snippet on main
does not find anything. Is there a way to run a groovy system script on the
slave? How can I the required classes there (processtree and so on)?
I guess the processtreekiller runs somehow anyway on the slaves. I could
use some similar approach. Could you give me an advice?
Thanks and regards,
Gábor Lipták
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