To Enable HA open Ambari, go to Admin, select HA, click enable HA http://dev.hortonworks.com.s3.amazonaws.com/HDPDocuments/HDP2/HDP-2.0.9.0/bk_using_Ambari_book/content/install-ha_2x.html
On Thu, Nov 6, 2014 at 12:45 AM, Oleg Ruchovets <oruchov...@gmail.com> wrote: > Our deployment is 15 data nodes and 2 NN. ZKs installed also as part of > hortonworks distributions. > Sorry for dummy question - what is JN is? > Can you please please point me on some manual wiki for installation / > configuration. > > Thanks > Oleg. > > > On Thu, Nov 6, 2014 at 4:04 PM, Alexander Pivovarov <apivova...@gmail.com> > wrote: > >> 2 boxes for 2 NNs (better dedicated boxes) >> min 3 JNs >> min 3 ZKs >> >> JNs and ZKs can share boxes with other services >> >> >> On Wed, Nov 5, 2014 at 11:31 PM, Oleg Ruchovets <oruchov...@gmail.com> >> wrote: >> >>> Hello. >>> We are using hortonwork distribution and want to evaluate HA >>> capabilities. >>> Can community please share the best practices and potential problems? >>> Is it required additional hardware? >>> >>> Thanks >>> Oleg. >>> >> >> >
