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Cloudwatch sensor not listing all EC2 instances

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I've been setting up a few Cloudwatch sensors, all with the same AWS user (access and private key), and that works fine.

However, when presented with the list of EC2 instances and EBS volumes to pick the item to be monitored, it lists all except for one of my EC2 instances. It's that particular instance I really need to monitor (of course...).

I've done a bit of investigation by using different access keys (for users with more rights) but get the same result. I've then used the AWS CLI to list the EC2 instances, and found one interesting fact: this server is the last one in the list returned by the CLI when using the describe-instances command. That made me think it could have something to do with how the list is parsed in PRTG; and that's the only clue I have.

Everything else about this server is identical to some of the other servers that are listed fine: subnets, VPC, region, Security group - it's all identical...

Any thoughts?

aws cloudwatch question

Created on May 16, 2015 12:32:10 PM by  escher (0) 1



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Would it be possible to send us the information that you have gathered in an email to [email protected] so that we can test or examine it to see what might be the root cause? Would it also be possible to change the instance so that Amazon returns it sooner in the list to see if it is just being cut off?

Created on May 25, 2015 10:05:09 AM by  Greg Campion [Paessler Support]



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