DC-Specific indexing

[mark1ewis]

It would help support mixed clusters if Stargate could index only in a specific DC, so for example the reporting DC could pay the secondary-index overhead for using Stargate without impacting the OLTP nodes.

Ideally, it would be nice to not need to have Stargate installed on the production OLTP nodes at all, but not sure if that's feasible.

[trulite]

I wrote a comment earlier about doing it on a per-node configuration basis, but that would complicate querying. So I will think a bit more about this.

[mark1ewis]

Ideally it could be enabled on a per-DC basis. That's the way that DSE
Search works, and seems like it would help resolve the querying issue. It
would be fine if stargate queries made to nodes outside of the configured
DC nodes failed I think.
On Oct 22, 2015 10:54 AM, "Satyaprakash Buddhavarapu" <
[email protected]> wrote:

I wrote a comment earlier about doing it on a per-node configuration
basis, but that would complicate querying. So I will think a bit more about
this.

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[trulite]

Okay the DC aware indexing seems possible, but would require a lot of testing. If there is readiness to help in testing, this can be implemented.
If you are in the mood to get your hands dirty, I can point out the relevant areas to make changes and test. Otherwise we can make the changes except the change -> test -> change cycle will be longer