Thanks Jon. This is very helpful information for those of us who don't have visibility to these users. Answers my question.
> On Feb 29, 2016, at 6:56 PM, Jonathan Hsieh <j...@cloudera.com> wrote: > > The feature is definitely not abandoned -- we have few sizable customers at > PB scale that I can recall off the top of my head that have been using it > for over 8-12 months in the version backported to CDH (we backported an > early version back in oct/14 (CDH5.2), and updated with the recent more > recent changes in roughly may/15 (CDH5.4). These are used primarily to > store documents -- think PDF files. They are pretty happy -- the customer > reported that it was slightly slower on the write side (10-15%) than a > competing system but significantly faster on the read side (3x-4x > throughput). > > Over the holidays we shook out a semi-rare data loss issue with mob > compaction that had this as the root cause[1] -- (since pointers are only > stored in the "normal hfiles" the volume of datas on this case was fairly > large). > > We've been working on trying to get at least one of them to present at > hbasecon, but I'm not reviewing submissions this year and don't know if > they made it or not. > > Jon. > > [1] https://issues.apache.org/jira/browse/HBASE-15035 > > On Fri, Feb 26, 2016 at 12:27 PM, Andrew Purtell <apurt...@apache.org> > wrote: > >> I think we need at least one success story or one very interested user >> with a real project on the line to justify a backport. Otherwise it's a >> feature without any users - technically, abandoned. >> >>> On Fri, Feb 26, 2016 at 10:11 AM, Ted Yu <yuzhih...@gmail.com> wrote: >>> >>> I am interested in hearing about user experience with MOB feature as >> well. >>> >>> In my opinion, this feature is a nice addition to branch-1. >>> >>> On Wed, Feb 10, 2016 at 1:45 PM, Andrew Purtell <apurt...@apache.org> >>> wrote: >>> >>>> +user@ >>>> >>>> Is there anyone using the MOB feature in trunk for anything who can >>> comment >>>> on how well it's been working out? Intel folks maybe? >>>> >>>> On Thu, Jan 21, 2016 at 7:46 AM, Sean Busbey <bus...@apache.org> >> wrote: >>>> >>>>> The last time MOB on branch-1 came up, folks were concerned that it >>>>> wasn't stable enough in master yet. Is that still the case? >>>>> >>>>> Can we get a [DISCUSS] flagged thread to see what, if anything, folks >>>>> would like to see gate inclusion in branch-1? >>>>> >>>>> On Tue, Jan 19, 2016 at 7:31 PM, Jonathan Hsieh <j...@cloudera.com> >>>> wrote: >>>>>> +1 to 1.2 being feature complete corrently. There has already >> been a >>>>>> release candidate and folks are burning down the blockers currently >>> to >>>>> prep >>>>>> for the next RC. >>>>>> >>>>>> I like the idea of mob and sparkonhbase for 1.3. I'm more >>> comfortable >>>>> with >>>>>> sparkonhbase -- it is a new module and thus not as invasive. >>>>>> >>>>>> Jon. >>>>>> >>>>>> On Tue, Jan 19, 2016 at 4:55 PM, Andrew Purtell < >>>>> andrew.purt...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> Pretty sure Sean expressed 1.2 is feature complete and I'd support >>>> that. >>>>>>> Can we wait for 1.3 for MOB ? Can look at Spark connector then >> too. >>>>>>> >>>>>>>> On Jan 19, 2016, at 4:52 PM, Ted Yu <yuzhih...@gmail.com> >> wrote: >>>>>>>> >>>>>>>> Looks like 1.2.0 RC is in near future. >>>>>>>> >>>>>>>> I wonder if it is time to revive this thread (due to customer >>>>> interest). >>>>>>>> >>>>>>>> As far as I can tell, the Mob related tests have been passing in >>> the >>>>>>> recent >>>>>>>> past. >>>>>>>> >>>>>>>> Thanks >>>>>>>> >>>>>>>>> On Wed, Oct 28, 2015 at 2:07 PM, Andrew Purtell < >>>> apurt...@apache.org >>>>>> >>>>>>> wrote: >>>>>>>>> >>>>>>>>> I haven't heard an user answer in the affirmative to wanting >> it. >>>>>>>>> >>>>>>>>> I'll volunteer to RM 1.3, whenever we need it. Premature to >> have >>>> that >>>>>>>>> discussion without 1.2 even out the door yet, though. >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Wed, Oct 28, 2015 at 1:01 PM, Stephen Jiang < >>>>> syuanjiang...@gmail.com >>>>>>>> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Actually, it is actively changing in master branch on MOB >>> feature >>>>> made >>>>>>> me >>>>>>>>>> think about: if we ever want to port MOB feature to branch-1, >>> now >>>>> is a >>>>>>>>> good >>>>>>>>>> time. We can commit changes in both branches; otherwise, we >>>>> probably >>>>>>>>> would >>>>>>>>>> miss some commits when we port MOB to branch-1 in a late time. >>>>>>>>>> >>>>>>>>>> I am more thinking about 1.3 release (certainly not 1.2), >> which >>> we >>>>>>> still >>>>>>>>>> have some time to stabilize and allow interesting party to >> play >>>> with >>>>>>> the >>>>>>>>>> feature and give feedback. >>>>>>>>>> >>>>>>>>>> Thanks >>>>>>>>>> Stephen >>>>>>>>>> >>>>>>>>>> PS. given the features we discussed in 2.0.0 in the last >>> community >>>>>>>>> meeting, >>>>>>>>>> I think it would not release earlier than 1.3 :-), unless we >>>>>>>>> intentionally >>>>>>>>>> not find a release manager for 1.3. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> On Wed, Oct 28, 2015 at 9:09 AM, Sean Busbey < >>>> bus...@cloudera.com> >>>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>>> It's practically November. Matteo, are you up for a thread on >>>>> target >>>>>>>>>>> dates for 2.0.0 to start RCs? >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Wed, Oct 28, 2015 at 11:02 AM, Elliott Clark < >>>> ecl...@apache.org >>>>>> >>>>>>>>>> wrote: >>>>>>>>>>>> I feel the same lets keep branch-1 stable, and work towards >> a >>>>> faster >>>>>>>>>>> 2.0.0. >>>>>>>>>>>> >>>>>>>>>>>>> On Tue, Oct 27, 2015 at 4:52 PM, Stack <st...@duboce.net> >>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>> IMO, MOB is still not settled in Master. It has a bunch of >>>> flakey >>>>>>>>>> tests >>>>>>>>>>>>> that are getting fixed by Jingcheng or I've disabled them >>> till >>>>>>>>> someone >>>>>>>>>>> has >>>>>>>>>>>>> time to look at them. There is also a load of duplicated >> code >>>>> that >>>>>>>>> is >>>>>>>>>>> being >>>>>>>>>>>>> cleaned up (Matteo). >>>>>>>>>>>>> >>>>>>>>>>>>> Its not ready to go back to branch-1 IMO. >>>>>>>>>>>>> >>>>>>>>>>>>> Are there users who'd like it backported? >>>>>>>>>>>>> St.Ack >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> On Mon, Oct 26, 2015 at 10:55 AM, Stephen Jiang < >>>>>>>>>>> syuanjiang...@gmail.com> >>>>>>>>>>>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> Hello, guys, the MOB is in master branch. I saw bug fixes >>>>>>>>> happening >>>>>>>>>>> in >>>>>>>>>>>>>> master branch. >>>>>>>>>>>>>> >>>>>>>>>>>>>> I just wonder whether there is a plan to put MOB in >>>> branch-1. I >>>>>>>>> am >>>>>>>>>>>>> afraid >>>>>>>>>>>>>> if we don't do it now, it would be harder in the future to >>>> back >>>>>>>>> port >>>>>>>>>>> if >>>>>>>>>>>>> we >>>>>>>>>>>>>> decide to do it in a late time. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Thanks >>>>>>>>>>>>>> Stephen >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Thu, Jul 23, 2015 at 1:15 PM, Andrew Purtell < >>>>>>>>>> apurt...@apache.org> >>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>>> Thanks Jon. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> When I'm back in the office I'll check out master and >> have >>> a >>>>>>>>> look >>>>>>>>>>> into >>>>>>>>>>>>>> any >>>>>>>>>>>>>>> locally repeatable test failures. Anyway in my opinion at >>>> this >>>>>>>>>>> point it >>>>>>>>>>>>>>> would make the most sense for us to keep the MOB changes >> in >>>> on >>>>>>>>>>> master >>>>>>>>>>>>> and >>>>>>>>>>>>>>> deal with any fallout in follow on issues. I think all >> who >>>>> voted >>>>>>>>>> +1 >>>>>>>>>>> for >>>>>>>>>>>>>>> this change were aware that large changes like this can >>> have >>>> a >>>>>>>>>>>>>> temporarily >>>>>>>>>>>>>>> destabilizing effect. As long as the MOB devs are around >> to >>>>> help >>>>>>>>>>> clean >>>>>>>>>>>>>> up, >>>>>>>>>>>>>>> we should be good! >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Wed, Jul 22, 2015 at 8:09 PM, Jonathan Hsieh < >>>>>>>>> j...@cloudera.com >>>>>>>>>>> >>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> I had two clean full builds/unit test on my internal >> setup >>>> and >>>>>>>>>> the >>>>>>>>>>>>>> latest >>>>>>>>>>>>>>>> build went back to ~4325 total tests and failures on >>>> Procedure >>>>>>>>>>> relate >>>>>>>>>>>>>>> tests >>>>>>>>>>>>>>>> cases. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> I don't think mob is responsible for these failures. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Jon. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On Wed, Jul 22, 2015 at 4:32 PM, Jonathan Hsieh < >>>>>>>>>> j...@cloudera.com >>>>>>>>>>>> >>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Although the the precommit buiid passed, and the >>>> compilation >>>>>>>>>> and >>>>>>>>>>>>> mob >>>>>>>>>>>>>>>>> testing I ran after before the merge was commited >> passed, >>>> It >>>>>>>>>>> looks >>>>>>>>>>>>>> like >>>>>>>>>>>>>>>>> the first full build after the merge [1] failed. It >>> looked >>>>>>>>>> like >>>>>>>>>>>>>>>>> something hung along the way, and that most of the >>> previous >>>>>>>>>>> builds >>>>>>>>>>>>>> had >>>>>>>>>>>>>>>>> failed for various reasons. :( >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> I kicked it off again have it do another try. If it is >>> mob >>>>>>>>>>> related >>>>>>>>>>>>>>> we'll >>>>>>>>>>>>>>>>> take hunt it down and take care of it. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Jon. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> [1] https://builds.apache.org/job/HBase-TRUNK/6672/ >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> On Wed, Jul 22, 2015 at 1:16 PM, Jonathan Hsieh < >>>>>>>>>>> j...@cloudera.com> >>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> I've merged the code in to master. Thanks for all the >>>> hard >>>>>>>>>>> work >>>>>>>>>>>>>>>>>> Jingcheng and thanks to all who have been involved >> with >>>>>>>>>>> reviews, >>>>>>>>>>>>>>>>>> discussion, and voting! >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Jon >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On Wed, Jul 22, 2015 at 12:45 AM, Jingcheng Du < >>>>>>>>>>>>>>> jingcheng...@intel.com> >>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> Hi all, >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> The vote passes with 8 +1s and no -1. Thanks all for >>>>>>>>>> guiding, >>>>>>>>>>>>>> helping >>>>>>>>>>>>>>>> and >>>>>>>>>>>>>>>>>>> voting! >>>>>>>>>>>>>>>>>>> We will work on the merge activities and will let >> guys >>>>>>>>> know >>>>>>>>>>> about >>>>>>>>>>>>>> the >>>>>>>>>>>>>>>>>>> detailed plan for merge time. >>>>>>>>>>>>>>>>>>> And thanks Jon for helping merge this branch to >> trunk! >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> Regards, >>>>>>>>>>>>>>>>>>> Jingcheng >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>>>> View this message in context: >> http://apache-hbase.679495.n3.nabble.com/RESULT-VOTE-Merge-branch-hbase-11339-HBase-MOB-to-trunk-tp4073446.html >>>>>>>>>>>>>>>>>>> Sent from the HBase Developer mailing list archive at >>>>>>>>>>> Nabble.com. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>>> // Jonathan Hsieh (shay) >>>>>>>>>>>>>>>>>> // HBase Tech Lead, Software Engineer, Cloudera >>>>>>>>>>>>>>>>>> // j...@cloudera.com // @jmhsieh >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>> // Jonathan Hsieh (shay) >>>>>>>>>>>>>>>>> // HBase Tech Lead, Software Engineer, Cloudera >>>>>>>>>>>>>>>>> // j...@cloudera.com // @jmhsieh >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>> // Jonathan Hsieh (shay) >>>>>>>>>>>>>>>> // HBase Tech Lead, Software Engineer, Cloudera >>>>>>>>>>>>>>>> // j...@cloudera.com // @jmhsieh >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>> Best regards, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> - Andy >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Problems worthy of attack prove their worth by hitting >>> back. >>>> - >>>>>>>>>> Piet >>>>>>>>>>>>> Hein >>>>>>>>>>>>>>> (via Tom White) >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> Sean >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Best regards, >>>>>>>>> >>>>>>>>> - Andy >>>>>>>>> >>>>>>>>> Problems worthy of attack prove their worth by hitting back. - >>> Piet >>>>> Hein >>>>>>>>> (via Tom White) >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> // Jonathan Hsieh (shay) >>>>>> // HBase Tech Lead, Software Engineer, Cloudera >>>>>> // j...@cloudera.com // @jmhsieh >>>> >>>> >>>> >>>> -- >>>> Best regards, >>>> >>>> - Andy >>>> >>>> Problems worthy of attack prove their worth by hitting back. - Piet >> Hein >>>> (via Tom White) >> >> >> >> -- >> Best regards, >> >> - Andy >> >> Problems worthy of attack prove their worth by hitting back. - Piet Hein >> (via Tom White) > > > > -- > // Jonathan Hsieh (shay) > // HBase Tech Lead, Software Engineer, Cloudera > // j...@cloudera.com // @jmhsieh
