just a remark. my query was not about tools using MR (everyone i think is ok with those). the topic was about: "are we ok with running MR jobs from Master and RSs code?" since this will be the first time we do this
Matteo On Thu, Sep 22, 2016 at 2:49 PM, Devaraj Das <d...@hortonworks.com> wrote: > Very much agree; for tools like ExportSnapshot / Backup / Restore, it's > fine to be dependent on MR. MR is the right framework for such. We should > also do compactions using MR (just saying :) ) > ________________________________________ > From: Ted Yu <yuzhih...@gmail.com> > Sent: Thursday, September 22, 2016 2:00 PM > To: dev@hbase.apache.org > Subject: Re: [DISCUSSION] MR jobs started by Master or RS > > I agree - backup / restore is in the same category as import / export. > > On Thu, Sep 22, 2016 at 1:58 PM, Andrew Purtell <andrew.purt...@gmail.com> > wrote: > > > Backup is extra tooling around core in my opinion. Like import or export. > > Or the optional MOB tool. It's fine. > > > > > On Sep 22, 2016, at 1:50 PM, Matteo Bertozzi <mberto...@apache.org> > > wrote: > > > > > > What's the latest opinion around running MR jobs from hbase (Master or > > RS)? > > > > > > I remember in the past that there was discussion about not having MR > has > > > direct dependency of hbase. > > > > > > I think some of discussion where around MOB that had a MR job to > compact, > > > that later was transformed in a non-MR job to be merged, I think we > had a > > > similar discussion for log split/replay. > > > > > > the latest is the new Backup feature (HBASE-7912), that runs a MR job > > from > > > the master to copy data or restore data. > > > (backup is also "not really core" as in.. if you don't use backup > you'll > > > not end up running MR jobs, but this was probably true for MOB as in > "if > > > you don't enable MOB you don't need MR") > > > > > > any thoughts? do we a rule that says "we don't want to have hbase run > MR > > > jobs, only tool started manually by the user can do that". or can we > > start > > > adding MR calls around without problems? > > >
