[
https://issues.apache.org/jira/browse/CASSANDRA-4026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225711#comment-13225711
]
Brandon Williams commented on CASSANDRA-4026:
---------------------------------------------
bq. If we change EC2Snitch/Ec2Multiregion snitch, we also need to change the
schema for the existing cluster
Not the schema per se, but the datacenter name. This is doable though if
you're willing to repair afterwards. Another option is to switch an entire
DC's snitch at a time.
bq. Option 1: Leave the existing snitch as it is and add a new snitch.
Ugh, that will cause tremendous confusing for new users. It would however be
nice to get rid of this wart at some point.
bq. Option 2: Parse for us-west-1 as us-west and parse us-west-2 as us-west2,
as us-west-2 is fairly new it wont affect a lot of us?
There aren't a lot good options here, I'm not sure how I feel about this one
since it's definitely a hack, but only appending the number to the DC if > 1
might be the least painful for existing users.
> EC2 snitch incorrectly reports regions
> --------------------------------------
>
> Key: CASSANDRA-4026
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4026
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.8
> Environment: Ubuntu 10.10 64 bit Oracle Java 6
> Reporter: Todd Nine
> Assignee: Vijay
>
> Currently the org.apache.cassandra.locator.Ec2Snitch reports "us-west" in
> both the oregon and the california data centers. This is incorrect, since
> they are different regions.
> California => us-west-1
> Oregon => us-west-2
> wget http://169.254.169.254/latest/meta-data/placement/availability-zone
> returns the value "us-west-2a"
> After parsing this returns
> DC = us-west Rack = 2a
> What it should return
> DC = us-west-2 Rack = a
> This makes it possible to use multi region when both regions are in the west
> coast.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
