Rahul Agarkar
Rahul Agarkar
> Mind explaining more about the algorithm here? > > I guess the problem here is that, when moving a region from rs A to rs B, the block cache...
> I do not fully understand why higher prefetched ratio leads to lower moving cost, if a region's hfiles have all been cached, after moving we need to fetched all...
> Also, does this new cost function always be enabled by default on the StochasticLoadBalancer? The PrefetchCacheCostFunction will be enabled if the configuration "hbase.prefetch.file.list.path" is set. In addition to that,...
> Thanks for looking into these changes. How about we provide an extension to the TRUNCATE TABLE statement to preserve the splits? We can have an optional clause something like:...
The test reported failing in the PR seems to be failing inconsistently as it passed when tested on a local build. Also, the failure do not seem to be related...
An update on testing. In addition to adding a unit test which considers different combinations of prefetch ratio on the currently hosting region server as well as historical prefetch ratio,...