Anoop: Can you file a Jira ? Thanks
On Mar 2, 2012, at 5:19 AM, Anoop Sam John <[email protected]> wrote: > Hi Devs, > In LB there is randomAssignment(List<ServerName> servers) API which will be > used by AM to assign > a region from a down RS. [This will be also used in other cases like call to > assign() API from client] > I feel it would be better to pass the HRegionInfo also into this method. When > the LB making a choice for a region > assignment, when one RS is down, it would be nice that the LB knows for which > region it is doing this server selection. > > > > While one RS down, we wanted the regions to get moved to other RSs but a set > of regions stay together. We are having custom load balancer but with the > current way of LB interface this is not possible. Another way is I can allow > a random assignment of the regions at the RS down time. Later with a cluster > balance I can balance the regions as I need. But this might make regions > assign 1st to one RS and then again move to another. Also for some time > period my business use case can not get satisfied. > > > > Also I have seen some issue in JIRA which speaks about making sure that Root > and META regions always sit in some specific RSs. With the current LB API > this wont be possible in future. > > > > > > Regards > Anoop
