Trigger an event based on a trend.
JohnD Blackburn <[email protected]> Wed, 28 Nov 2018 23:10:29 +0000
| Newsgroups | gmane.network.opennms.general |
|---|---|
| Message-ID | <AM6PR0602MB33816B79C5477742F0D62BA5CBD10@AM6PR0602MB3381.eurprd06.prod.outlook.com> |
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Hi all,
I have a problem that I'm wondering if OpenNMS has an easy solution for.
Currently, we have a metric that records the number of jobs in a print queu=
e and a threshold that triggers if that queue length exceeds a threshold.
However, this doesn't quite meet our needs, as it is possible to have a pri=
nter that is stalled with a queue length less than the threshold and we don=
't get alerted about it.
So what I'd like to be able to do is to raise an alert if the queue length =
is not decreasing over time.
Obviously, if the queue length is 0, then there is no need to alert for a l=
ack of a decrease...
Looking for ideas on ways to address this.
Print queue not processing jobs is the real issue being looked for here, so=
a case where new jobs being added at the same rate that queued jobs are co=
mpleted might show as no decrease in queue length but in reality, the queue=
is doing its job so no alert would be necessary.
Print server is Oracle Linux 7 running CUPS.
OpenNMS Version 23.0.1
Regards,
John
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<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">Hi all,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">I have a problem that I’m wondering if OpenNMS has an easy sol=
ution for.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">Currently, we have a metric that records the number of jobs in a pri=
nt queue and a threshold that triggers if that queue length exceeds a thres=
hold.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">However, this doesn’t quite meet our needs, as it is possible =
to have a printer that is stalled with a queue length less than the thresho=
ld and we don’t get alerted about it.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">So what I’d like to be able to do is to raise an alert if the =
queue length is not decreasing over time.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif">Obviously, if the queue length is 0, then there is no need to alert =
for a lack of a decrease…<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Verdana",sans-=
serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">Looking for idea=
s on ways to address this.<o:p></o:p></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif"><o:p> </o:p=
></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">Print queue not =
processing jobs is the real issue being looked for here, so a case where ne=
w jobs being added at the same rate that queued jobs are completed might sh=
ow as no decrease in queue length but in reality,
the queue is doing its job so no alert would be necessary.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif"><o:p> </o:p=
></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">Print server is =
Oracle Linux 7 running CUPS.<o:p></o:p></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif"><o:p> </o:p=
></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">OpenNMS Version =
23.0.1<o:p></o:p></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif"><o:p> </o:p=
></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">Regards,<o:p></o=
:p></span></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"mso-margin-bottom-alt:auto;mso-ad=
d-space:auto">
<span style=3D"font-family:"Verdana",sans-serif">John<o:p></o:p><=
/span></p>
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