Sorry Type-o So there might be issues when you pass the Quadrillion. But Like I said never ran into that issue of region limits.
On Wed, Aug 19, 2015 at 2:29 PM, Ted Malaska <ted.mala...@cloudera.com> wrote: > Sorry 10 billion a day so that is 7 Trillion records. So many issues > around 1000 Trillion > > On Wed, Aug 19, 2015 at 2:28 PM, Ted Malaska <ted.mala...@cloudera.com> > wrote: > >> I've been doing HBase for a long time and never had an issue with region >> count limits and I have clusters with 10s of billions of records. Many >> there would be issues around a couple Trillion records, but never got that >> high yet. >> >> Ted Malaska >> >> On Wed, Aug 19, 2015 at 2:24 PM, Josh Elser <josh.el...@gmail.com> wrote: >> >>> Oh, one other thing that I should mention (was prompted off-list). >>> >>> (definition time since cross-list now: HBase regions == Accumulo tablets) >>> >>> Accumulo will handle many more regions than HBase does now due to a >>> splittable metadata table. While I was told this was a very long and >>> arduous journey to implement correctly (WRT splitting, merges and bulk >>> loading), users with "too many regions" problems are extremely few and far >>> between for Accumulo. >>> >>> I was very happy to see effort/design being put into this in HBase. And, >>> just to be fair in criticism/praises, HBase does appear to me to do >>> assignments of regions much faster than Accumulo does on a small cluster >>> (~5-10 nodes). Accumulo may take a few seconds to notice and reassign >>> tablets. I have yet to notice this with HBase (which also could be due to >>> lack of personal testing). >>> >>> >>> Jerry He wrote: >>> >>>> Hi, folks >>>> >>>> We have people that are evaluating HBase vs Accumulo. >>>> Security is an important factor. >>>> >>>> But I think after the Cell security was added in HBase, there is no more >>>> real gap compared to Accumulo. >>>> >>>> I know we have both HBase and Accumulo experts on this list. >>>> Could someone shred more light? >>>> I am looking for real gap comparing HBase to Accumulo if there is any so >>>> that I can be prepared to address them. This is not limited to the >>>> security >>>> area. >>>> >>>> There are differences in some features and implementations. But they >>>> don't >>>> see like real 'gaps'. >>>> >>>> Any comments and feedbacks are welcome. >>>> >>>> Thanks, >>>> >>>> Jerry >>>> >>>> >> >
