Will do! Thanks you for your suggestion. I will keep an eye on the read rate to that RegionServer, but in case it doesn't drop, do you think there should be something else I need to look at?
* Is there a way to inspect whether I have corruptions in the META table? * Any other possible misconfiguration that comes to mind that I should keep an eye for? best On Sun, Jan 25, 2015 at 8:05 PM, Ted Yu <[email protected]> wrote: > Suggest you lower the frequency of compacting hbase:meta > > Move the second command to another script. > > Cheers > > > > > On Jan 25, 2015, at 4:46 PM, Pun Intended <[email protected]> > wrote: > > > > Hi Ted, > > > > I have a small script: major_compact_hbase.hbsh > > > > major_compact 'users' > > major_compact 'hbase:meta' > > exit > > > > > > and a cron calls it once a day with: > > /usr/bin/hbase shell major_compact_hbase.hbsh > > > > Thanks again! > > > > > >> On Sun, Jan 25, 2015 at 7:38 PM, Ted Yu <[email protected]> wrote: > >> > >> How do you trigger major compaction manually ? > >> > >> Cheers > >> > >> > >> > >>>> On Jan 25, 2015, at 3:40 PM, Pun Intended <[email protected]> > >>> wrote: > >>> > >>> Thank you so much for your help! > >>> You are right, the slow region server hosts hbase:meta!!! I am using > >> Hbase > >>> 0.96.1.1 > >>> > >>> I have major compactions disabled. I run major compaction manually > once a > >>> day and when it dpes that besides requesting major compaction on my > >> tables, > >>> it also requests a major_compact 'hbase:meta'. Is that what could be > >>> causing the issue? I did a scan on 'hbase:meta' and I see that it > >> contains > >>> about the same number of regions as it should - I have two tables with > >>> ~3000 regions each. > >>> > >>> Do you think I have some misconfiguration? Do I need to do some cleanup > >> on > >>> the meta region? Am I hitting some Hbase bug? Or am I being dumb > >> requesting > >>> major compaction for the meta region daily? > >>> > >>> I believe on the client side I am doing things right - using scanner > >>> caching, etc. > >>> > >>> Thank you so much for your help!! > >> >
