Error when starting Priam - docs unclear ?

[netflix]

Error when starting Priam - docs unclear ?

[psadhu]

INFO 00:02:35,573 REGION set to us-west-2, ASG Name (nnnnn-uswest2)

Does the auto scaling group "nnnnn-uswest2" exist and your instance part of it? The ASG seems to have 0 instances.

[pcn]

This issue came up with me because of the assumption that the viable AZs are the first 3 returned in a region. I was up late looking at some other stuff last night, but it seems that this message happens when the ASG that the instance is in isn't in the list of ASGs that Priam derives from either priam.zones.available or from the default (your -1a, 1b, and 1c).

This happens in a couple of specific cases for me:

• one AG, multiple AZs, but instances don't get allocated in B or C, only in A, D, E. The instances in D and E are never found.
• one AG per AZ, but a typo gets into Priam via the command line (JAVA_OPTS contains multiple layers of quotes, so the first zone became 'us-east-1a with a leading single quote, and the last zone became us-east-1e' with a trailing quote, and these AZs weren't properly matching.

A better error message in this case would help a lot, including a clear list of the zones available vs. the zone that the instance is in.

For my second case, characters in the AZ name that aren't in the set [a-zA-Z0-9-] should probably cause an error.

Lastly, on a related note, if you use cloudformation to launch, there are a dashes in the AG name. It's automatic, there doesn't appear to be a way around this. It's not clear what relevance the "-" character hasn the AG name from the documentation, if any, but it can be inferred that at netflix you use letters and underscore for AG names.

In my fork I've changed the final "-" to a "+" just so that my CF-generated AG names don't get confused, but it would be helpful to understand the assumptions/requirements that underlie all of the AG name and AZ names, and how they can/should be used.

Maybe this is another option for me to add to config when I've finished my current deadlines :)

[jasobrown]

I believe the cloudformation issue was resolved (or at least discussed) in another ticket. For the AZ names, it's probably best to use a properties file (or some similar thing), as you've surely found that cli options get funky fast.