Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

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3977 Views 7 Replies Latest reply: Nov 22, 2011 8:13 AM by Maurice Kevenaar

Pluto04

5 posts since
Oct 30, 2011

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Nov 4, 2011 6:27 PM

I am getting this anoying event from all my Linux hosts running "net-snmpd". SNMPWALK works fine and does not give any error.

The count of the event is at one (1) and does not increase! If I aknowledge and clear the event it pop's up within the next couple of minutes.

Zenoss core v.3.2.1 as standard install is our test platform.

Thanks in advance for any hint on how to troubleshoot or resolve the issue.

Manfred Koroschetz

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Tags: device, event, processes

Robert Bell
58 posts since
Oct 4, 2011

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1. Nov 4, 2011 6:34 PM (in response to Pluto04)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

I'm having the same issue here. It will do this back and forth for hours and then go away only to start again later. I've had to completely remove process monitors.

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Pluto04
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Oct 30, 2011

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2. Nov 8, 2011 3:26 PM (in response to Robert Bell)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

So far I have not been able to solve the issue, and unfortunately nobody was able to point me in any direction. Could anyone of the experts please give us a hint? Thanks.

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Robert Bell
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Oct 4, 2011

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3. Nov 8, 2011 3:38 PM (in response to Pluto04)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

For me, this was because I deleted the Process monitor but the device still had that monitor listed. After you delete monitor go to each of the devices that was using it and delete it there too.

I hope this is not by design because if you had a large group touching each device individually to remove the process would be a nightmare.

I'm hoping this is a bug . . .

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Pluto04
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Oct 30, 2011

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4. Nov 9, 2011 6:14 PM (in response to Robert Bell)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

Robert,
today I had some time to work on the issue, and for better or worse it has disappeard. Unfortunately I could not test what you proposed, but it makes perfect sense and might indeed have been what happened.
However I had the Lab server shutdown for a couple of days, and when I started it up, the errors did not appear, and have not appeared in the last several hours.
I am crossing my fingers.
Thanks for your hint. Will test it next time (if it happens again).

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Maurice Kevenaar
4 posts since
Sep 4, 2011

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5. Nov 22, 2011 3:53 AM (in response to Pluto04)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

Hi,

I only get this message on the "localhost" machine.

Please help?

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jmp242
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Mar 7, 2007

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6. Nov 22, 2011 8:00 AM (in response to Maurice Kevenaar)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

Don't use localhost, use the FQDN... Delete and re-add using FQDN.

--
James Pulver
ZCA Member
LEPP Computer Group
Cornell University

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Maurice Kevenaar
4 posts since
Sep 4, 2011

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7. Nov 22, 2011 8:13 AM (in response to jmp242)
Re: Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

Hi James,

I Use the FQDN, that's why I used the quotes.

Maurice

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Nov 4, 2011 6:27 PM

Getting "Unable to read processes on device x.x.x.x; error: first argument must be string or compiled pattern"

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