bq. is there an OOME protections which lowers the caching in case ther server is stressed in memory?
I am not aware of such mechanism. On Mon, Nov 4, 2013 at 9:55 AM, Asaf Mesika <[email protected]> wrote: > On this note: > If I hammer a region server with scans that has let's say 100 rows caching > - is there an OOME protections which lowers the caching in case ther server > is stressed in memory? Or will it fail the region server with OOME? > > On Monday, November 4, 2013, Anoop John wrote: > > > Have u tested this? AFAIK it happens the way u like. > > > > -Anoop- > > > > On Mon, Nov 4, 2013 at 10:49 PM, John <[email protected] > <javascript:;>> > > wrote: > > > > > Hi, > > > > > > If I have a question about the setCaching function. As I know the > caching > > > value influence how many rows will be cached in the memory of the > region > > > server. So for example I have 10 rows with 20k columns and I set a > > scanner > > > with the caching option 5 and the batch option 1k. What will hapen If I > > > call the next() function? > > > > > > As far as I know, the region server will cache 5 rows with 1k columns > > each > > > in the memory. If thats right, is there a way to cache the batches > > instead > > > of the rows? In this example I would like to cache 5 batches from row > one > > > instead of 5 rows with each 1k columns. > > > > > > kind regards > > > > > >
