> I can represent your side Ram (and Anoop). I've been known always argue both > side of a discussion and to never take sides easily (drives some folks crazy).
I can vouch for this (smile) I also can offer support for off heaping there. At the same time we do have a gap where we can't point to a timeline of improvements (yet, anyway) with benchmarks showing gains where your goals need them. For example, stock HBase in one JVM can address max N GB for response time distribution D; dev version of HBase in off heap branch can address max N' GB for distribution D', where N' > N and D > D' (distribution D' statistically shows better/lower response times). > On Jul 17, 2015, at 6:56 AM, lars hofhansl <[email protected]> wrote: > > I'm in favor of anything that improves performance (and preferably doesn't > set us back into a world that's worse than C due to the lack of pointers in > Java).Never said "I don't like it", it's just that I'm perhaps asking for > more numbers and justification in weighing the pros and cons. > I can represent your side Ram (and Anoop). I've been known always argue both > side of a discussion and to never take sides easily (drives some folks > crazy). And Stack's there too, he yell at me where needed :) > > Perhaps we can do it a bit later in the evening so there is a fighting chance > that folks on IST can participate. I know that some of our folks on IST would > love to participate in the backup discussion). > > Like Enis, I'm also happy to host. We're in Downtown SF. I'd just need an > approx. number of folks. > > -- Lars > > From: ramkrishna vasudevan <[email protected]> > To: "[email protected]" <[email protected]>; lars hofhansl > <[email protected]> > Sent: Wednesday, July 15, 2015 10:10 AM > Subject: Re: DISCUSSION: lets do a developer workshop on near-term work > > Hi > What time will it be on August 26th? > @LarsYa. I know that you are not generally in favour of this offheaping > stuff. May be if we (from India) can attend this meeting remotely your > thoughts can be discussed and also the current state of this work. > RegardsRam > > > On Wed, Jul 15, 2015 at 9:28 PM, lars hofhansl <[email protected]> wrote: > > Works for me. I'll be back in the Bay Area the week of August 9th. > We have done a _lot_ of work on backups as well - ours are more complicated > as we wanted fast per-tenant restores, so data is "grouped" by tenant. Would > like to sync up on that (hopefully some of the folks who wrote most of the > code will be in town, I'll check). > > Also interested in the "Time" and "offheap" parts (although you folks usually > do not like what I think about the offheap efforts :) ). > Would like to add the following topics: > > > - "Timestamp Resolution". Or making space for more bits in the timestamps > (happy to cover that, unless it's part of the "Time" topic) > > > - "Replication". We found that replication cannot keep up with high write > loads, due to the fact that replicated is strictly single threaded per > regionserver (even though we have multiple region servers on the sink side) > > > - "Spark integration" (Ted Malaska?) > > > OK... Out now to make a "bullshit hat". > > -- Lars > > ________________________________ > From: Sean Busbey <[email protected]> > To: dev <[email protected]> > Sent: Tuesday, July 14, 2015 7:11 PM > Subject: Re: DISCUSSION: lets do a developer workshop on near-term work > > > I'm planning to be in the Bay area the week of the 24th of August. > > -- > Sean > > > >> On Jul 14, 2015 7:53 PM, "Andrew Purtell" <[email protected]> wrote: >> >> I can be up in your area in August. >> >>> On Tue, Jul 14, 2015 at 5:31 PM, Stack <[email protected]> wrote: >>> >>>> On Tue, Jul 14, 2015 at 3:39 PM, Enis Söztutar <[email protected]> >>> wrote: >>> >>>> Sounds good. It has been a while we did the talk-aton. >>>> >>>> I'll be off starting 25 of July, so I prefer something next week if >>>> possible. >>>> >>>> You ever coming back? If so, when? I'm back on 10th of August (Mikhail >> on >>> the 20th). >>> St.Ack >>> >>> >>> >>> >>>> Enis >>>> >>>>> On Tue, Jul 14, 2015 at 3:18 PM, Stack <[email protected]> wrote: >>>>> >>>>> Matteo and I were thinking it time devs got together for a pow-wow. >>> There >>>>> is a bunch of stuff in flight at the moment (see below list) and it >>> would >>>>> be good to meet and whiteboard, surface goodo ideas that have gone >>>> dormant >>>>> in JIRA, or revisit designs/proposals out in JIRA-attached google doc >>>> that >>>>> need socializing. >>>>> >>>>> You can only come if you are wearing your bullshit hat. >>>>> >>>>> Topics we'd go over could include: >>>>> >>>>> + Our filesystem layout will not work if 1M regions (Matteo/Stack) >>>>> + Current state of the offheaping of read path and alternate KeyValue >>>>> implementation (Anoop/Ram) >>>>> + Append rejigger (Elliott) >>>>> + A Pv2-based Assign (Matteo/Steven) >>>>> + Splitting meta/1M regions >>>>> + The revived Backup (Vladimir) >>>>> + Time (Enis) >>>>> + The overloaded SequenceId (Stack) >>>>> + Upstreaming IT testing (Dima/Sean) >>>>> + hbase-2.0.0 >>>>> >>>>> I put names by folks I know could talk to the topic. If you want to >>> take >>>>> over a topic or put your name by one, just say. Suggest that >>> discussion >>>>> lead off with a 5-10minute on current state of >>>>> thought/design/implementation. >>>>> >>>>> What do others think? >>>>> >>>>> What date would suit folks? >>>>> >>>>> Anyone want to host? >>>>> >>>>> Thanks, >>>>> Matteo and St.Ack >> >> >> >> -- >> Best regards, >> >> - Andy >> >> Problems worthy of attack prove their worth by hitting back. - Piet Hein >> (via Tom White) > > > >
