Question

Here’s what I believe to be the relevant error message:

Caused by: java.io.IOException: Cannot run program "/usr/bin/git" (in directory "/var/lib/hudson/jobs/Goals/workspace"): java.io.IOException: error=12, Cannot allocate memory
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:474)
    at hudson.Proc$LocalProc.<init>(Proc.java:192)
    at hudson.Proc$LocalProc.<init>(Proc.java:164)
    at hudson.Launcher$LocalLauncher.launch(Launcher.java:638)
    at hudson.Launcher$ProcStarter.start(Launcher.java:273)
    at hudson.Launcher$ProcStarter.join(Launcher.java:280)
    at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:319)
    ... 15 more
Caused by: java.io.IOException: java.io.IOException: error=12, Cannot allocate memory
    at java.lang.UNIXProcess.<init>(UNIXProcess.java:164)
    at java.lang.ProcessImpl.start(ProcessImpl.java:81)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:467)
    ... 21 more

You can also see the full output from Hudson here: http://hudson.pastebin.com/KLSNrY1D

Any ideas? How can I stop this from happening? I’m not a Java dev, so I don’t know much about what’s going on here. I have to restart Hudson entirely to fix the issue, but clearly this is not the best answer.

Answer 1

Sounds like you’ve exhausted swap space on your box.

The java.lang.ProcessBuilder.start() ultimately must boil down to a fork or clone system call on a Unix-like OS to create a new process. That takes swap space. And you seem to not have enough. This is more in the Unix system admin realm, not Java.