Thanks. I've created a jira for this: https://issues.apache.org/jira/browse/HELIX-522
We can discuss there. Thanks, Jason On Sat, Sep 27, 2014 at 5:23 PM, kishore g <[email protected]> wrote: > This looks great. We should probably discuss feedback on a jira > On Sep 27, 2014 1:33 PM, "Kanak Biscuitwala" <[email protected]> wrote: > > > Hey Jason, > > > > Would you prefer feedback on this email thread, or as a comment replying > > to the wiki post? > > > > Kanak > > > > ---------------------------------------- > > > Date: Fri, 26 Sep 2014 17:50:01 -0700 > > > Subject: [DISCUSSION] Support dynamic config by Helix > > > From: [email protected] > > > To: [email protected] > > > > > > Hi, > > > > > > We are seeing a couple of use cases where an online service may need to > > > roll out a set of new configs in a coordinated way without bouncing the > > > service.Helix can be extended to support this. The basic idea is to > > > generalize ideal-state to support multi-dimensional mappings. Currently > > > Helix uses ideal-state to define the target mapping from a partition to > > the > > > placement and state of the partition (i.e. partition->(placement, > state). > > > The mapping can be extended to support another attribute, say > > > config-version, so it would be partition->(placement, state, > > > config-version). Helix controller is then able to bring the system to > the > > > target mappings in a coordinated way. I've drafted a high level design > > for > > > this: > > > > > > > https://cwiki.apache.org/confluence/display/HELIX/Support+Dynamic+Config > > > > > > I'd appreciate any feedback. > > > > > > Thanks, > > > Jason > > >
