== Installation ==
After installing [http://www.qoscosgrid.org/trac/qcg/wiki/Software%20repositories QCG repository] you can install the probe with singe command:
{{{
yum install qcg-comp-nagios-probe
}}}

== Usage ==

Usage:

{{{
/usr/libexec/grid-monitoring/probes/org.qoscosgrid/computing/check_qcg_comp
 -H hostname -p port -x proxy -t timeout [-v 0-3 -j test-jsdl.xml]

-H hostname - QCG-Computing host

-p port - QCG-Computing port

-x proxy - path to the file containing valid user X509 proxy

-t timeout - test timout given in seconds

-v 0-3 - verbosity (default: 0)

-j test-jsdl.xml - JSDL document decribing job to be tested
}}}

Example:
{{{
/usr/libexec/grid-monitoring/probes/org.qoscosgrid/computing/check_qcg_comp -H qcg.inula.man.poznan.pl -p 19000 -x /tmp/x509up_u602 -t 60 -v 3
}}}
== Exit Codes ==

* STATUS_OK  (0) - Job finished successfully
* STATUS_WARNING	(1) - Job finished with exit code different than 0, Job did not finish within given timeout
* STATUS_CRITICAL (2) - Submission of a job failed. Job ended with status Failed or Cancelled.
* STATUS_UNKNOWN  (3) - The probe internal or configuration error.

== Interpreting error messages  ==
* "No CA certs provided" - check if the QCG-Comp service is registered in GOCDB with url starting with httpg (not https)
*  "Failed to submit a job: com.sun.xml.ws.client.!ClientTransportException: HTTP transport error: java.net.!SocketTimeoutException: connect timed out" - the machine is either down or there is some firewall issue between the Nagios machine and the QCG-Computing machine (The QCG-Computing service by default listen on port 19000)
*  "Failed to submit a job: com.sun.xml.ws.client.!ClientTransportException: HTTP transport error: java.net.!ConnectException: Connection refused - the host is up but the service is down (check if the qcg-comp service is running)

== Adding new tests ==