Hi Atanu, Still confused. balance_switch is a standard HBase feature. Users may or may not have this feature enabled.
I think that you're saying that Trafodion recommends to turn this feature off in 1.3.0 but is OK with it being turned on in 2.0.0? Or, is there another functionality I am missing. Gunnar On Wed, Feb 10, 2016 at 4:58 PM, Atanu Mishra <[email protected]> wrote: > Yes. And yes. > > The functionality (to handle active transactions during rebalance/splits) > was checked-in post-1.3.0. It is disabled currently, but should be enabled > in time for 2.0.0. > > To clarify - > for 1.3.0, we still need the current recommendation for balance_switch > for 2.0.0, the recommendation is not needed since the functionality will > be enabled by default. > > In the interim, a user will need to enable the functionality manually. > > Regards, > Atanu > > ____________________ > Atanu Mishra > > On Wed, Feb 10, 2016 at 2:26 PM, Gunnar Tapper <[email protected]> > wrote: > >> Is this changed from 1.3.0 to 2.0.0? >> >> I'm a bit confused by Atanu's comment and Trina's subsequent response... >> are we still recommending that balance_switch should be false and only be >> enabled during maintenance windows? >> >> On Wed, Feb 10, 2016 at 3:20 PM, Trina Krug <[email protected]> wrote: >> >>> Yes, they will. Sorry if my answer was misleading. I was speaking >>> directly to the document section regarding disabling rebalancing due to >>> transactions aborting. >>> >>> Trina >>> >>> On Feb 10, 2016, at 2:00 PM, Atanu Mishra <[email protected]> wrote: >>> >>> Wasn't sure - I think the user will need to enable the functionality >>> first to see this behavior. >>> >>> Thanks, >>> Atanu >>> >>> ____________________ >>> Atanu Mishra >>> >>> On Wed, Feb 10, 2016 at 1:47 PM, Trina Krug <[email protected]> >>> wrote: >>> >>>> Rebalancing can now be done with active transactions and they *can* >>>> survive across a rebalance. There may be times when a transaction is >>>> aborted after new transactional activity is rejected during the rebalance >>>> however. But most often failed operations can be (and will be) retried and >>>> succeed. >>>> >>>> Trina >>>> >>>> On Feb 10, 2016, at 1:11 PM, Gunnar Tapper <[email protected]> >>>> wrote: >>>> >>>> Is this information still relevant? >>>> >>>> >>>> https://cwiki.apache.org/confluence/display/TRAFODION/Configuration#Configuration-DisablingHBaseRegionRebalancing >>>> >>>> >>>> -- >>>> Thanks, >>>> >>>> Gunnar >>>> *If you think you can you can, if you think you can't you're right.* >>>> >>>> >>> >> >> >> -- >> Thanks, >> >> Gunnar >> *If you think you can you can, if you think you can't you're right.* >> > > -- Thanks, Gunnar *If you think you can you can, if you think you can't you're right.*
