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December 3rd, 2009 13:00
I can't delete a host in ECC Console 6.1 UPB5
I have this crappy windows host that I know the agents have been un-installed from but ECC insists it's talking to it. I've even removed it from the ip filter on the ECC host but nope ECC still thinks it's there and it won't let me delete it. And it (ECC) knows it can't talk to it because if you ask it to do anyting (restart the master agent, install another agent) it comes back with "communication between agent and server failed."
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Allen Ward
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December 29th, 2009 10:00
When I have seen this before it was always an issue with another host reporting itself incorrectly and "tricking" CC into thinking the target host was still up. The bad news is that it isn't always easy to track down the offending host. The good news is that you were going to have to fix this someday anyway, and now that you know about it is the ideal time :-)
The first thing I would check would be the IP address listed for this host. Make sure it is the correct one. If it isn't, that will make it much easier to identify the "rogue" agent, since the IP will probably be the IP of the agent misreporting. If you find another host at that IP, try stopping the Master agent on it and see what happens. Assuming this is the issue you will likely have to reinstall the master agent on that host. Just make sure you get rid of all traces of the old agent first (including the ECC folder under \WINDOWS)
Another thing to try is to expand out all your hosts to look at the installed agents. See if you can find one that is reporting that it has a Host Agent but no Master Agent. This definately points to a conflict that needs to be investigated. It doesn't happen often, but you might get lucky and find it easily.
If that doesn't do anything for you, you may have to start digging in manually. Do you have a large number of SAN attached windows hosts? If they are all supposed to have a running agent on them, you may be able to find the offending host by identifying which host isn't showing up in the console.
The last resort (at least for the suggestions I can come up with quickly) would be to start "slogging" through all your agent hosts manually and checking to see that they are reporting correctly.
Hopefully one of these suggestions will help you identify the offending host. The one thing I can tell you for certain (based on my experience to date) is that if CC is reporting that there is a running Master Agent, there is SOMETHING out there running a Master Agent that is misreporting itself.
vramabha
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December 4th, 2009 10:00
JasonBailey
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December 5th, 2009 00:00
so when you try and delete it you get an error about an active master agent right?
I have seen this happen when ECC is confused about what host is what, usually due to host renaming. So there is a stale agent install somewhere out there which is "reporting in" with an old hostname in its agent config files
When you try and install an agent on this hostname what hostname appears in the task ? A different name ?
TyfoidKid
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December 6th, 2009 05:00
Allen Ward
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December 15th, 2009 13:00
TyfoidKid
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December 16th, 2009 08:00
It's in my original post
"communication between agent and server failed."
Allen Ward
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December 22nd, 2009 12:00
I saw that, but I've never seen that message in relation to deleting a host from the console.
So you are saying that you are right clicking on the Object for the host in the tree view and selecting "delete..." and you get the message about the communication failure?
TyfoidKid
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December 23rd, 2009 07:00
No I get a rule viloation if I try to delete it outright.
this is not possible because I saw the host admin un-install the agent. I then go the hosts list in the console look at this host and it looks normal.
But any attempt to "contact" it fails.