Jenkins Service was killed frequently

February 3, 2015 1k views

I installed Jenkins ( in my server (Ubuntu 12.04), and when I started do requests, via web interface, the service die.

My jenkins service is run in http://localhost:8080/, and i created a reverse proxy (in Apache 2.4), like tutorial below:

When the service dies, i get this logs only:

Log /var/log/syslog
Feb 3 10:06:04 localhost jenkins: jenkins: fatal: client (pid 10120) killed by signal 9, exiting

Log Apache Error
... [proxy:error] [pid 10587] AH00959: approxyconnect_backend disabling worker for (localhost) for 60s
... [proxy_http:error] [pid 10587] [client] AH01114: HTTP: failed to make connection to backend: localhost, referer:

What i do ?

  • Hey Tony! Hard to say without more info, but the first thing that comes to mind is that you maybe running out of memory. Java can be a bit of memory hog, and the kernel's OOM killer does use signal 9 (SIGKILL). What size server are you running? Have you tried adding some SWAP?

    by Justin Ellingwood
    Swap space can be used as an "overflow" area for your system when you run out of RAM. The operating system can store data that would normally be kept in RAM on the hard drive in a specially formatted file. In this guide, we'll demonstrate how to create and use one of these files in Ubuntu 14.04.
  • Hi asb, thanks for reply.
    No have more logs, the jenkins log not say anything about the error
    I use the lowest server (Ubuntu 12.04. 512mb RAM, 20GB SSD Disk).
    How confirm the out of memory error ?


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