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Posted to user@chukwa.apache.org by Noel Duffy <no...@sli-systems.com> on 2012/01/24 05:35:21 UTC

Chukwa agents and collectors not responding to HUP signal

I have a single Chukwa agent and collector running (chukwa 0.4.0), but neither will respond to the HUP signal that the stop-agents.sh and stop-collectors.sh scripts send. Even if I manually send a HUP signal to the process PID, it does not stop. In bin/chukwa, the shell script has these lines:

if [ "$1" = "stop" ]; then
  kill -1 `cat ${CHUKWA_PID_DIR}/$PID.pid`
else
  # run command               

So I assumed that the processes were designed to respond to a HUP signal and gracefully exit on receipt of one.

I have not yet attempted to trace through the code. I thought I would first check to see if this is a known issue.

RE: Chukwa agents and collectors not responding to HUP signal

Posted by Noel Duffy <no...@sli-systems.com>.
I have created a new issue in JIRA: https://issues.apache.org/jira/browse/CHUKWA-631

I have included all the details of my OS and platform there. It's Redhat Enterprise 5.4, 64 bit.

From: Ahmed Fathalla [mailto:afathalla@apache.org] 
Sent: Tuesday, 24 January 2012 9:23 p.m.
To: chukwa-user@incubator.apache.org
Subject: Re: Chukwa agents and collectors not responding to HUP signal

I think I faced this issue sometimes. What's the OS you are running Chukwa on?

I'd appreciate it if you open a new issue on JIRA for this, describing the whole scenario in more details.


On Tue, Jan 24, 2012 at 6:35 AM, Noel Duffy <no...@sli-systems.com> wrote:
I have a single Chukwa agent and collector running (chukwa 0.4.0), but neither will respond to the HUP signal that the stop-agents.sh and stop-collectors.sh scripts send. Even if I manually send a HUP signal to the process PID, it does not stop. In bin/chukwa, the shell script has these lines:

if [ "$1" = "stop" ]; then
 kill -1 `cat ${CHUKWA_PID_DIR}/$PID.pid`
else
 # run command

So I assumed that the processes were designed to respond to a HUP signal and gracefully exit on receipt of one.

I have not yet attempted to trace through the code. I thought I would first check to see if this is a known issue.

Re: Chukwa agents and collectors not responding to HUP signal

Posted by Ahmed Fathalla <af...@apache.org>.
I think I faced this issue sometimes. What's the OS you are running Chukwa
on?

I'd appreciate it if you open a new issue on JIRA for this, describing the
whole scenario in more details.



On Tue, Jan 24, 2012 at 6:35 AM, Noel Duffy <no...@sli-systems.com>wrote:

> I have a single Chukwa agent and collector running (chukwa 0.4.0), but
> neither will respond to the HUP signal that the stop-agents.sh and
> stop-collectors.sh scripts send. Even if I manually send a HUP signal to
> the process PID, it does not stop. In bin/chukwa, the shell script has
> these lines:
>
> if [ "$1" = "stop" ]; then
>  kill -1 `cat ${CHUKWA_PID_DIR}/$PID.pid`
> else
>  # run command
>
> So I assumed that the processes were designed to respond to a HUP signal
> and gracefully exit on receipt of one.
>
> I have not yet attempted to trace through the code. I thought I would
> first check to see if this is a known issue.
>
>