dose during HDP upgrade to 2.6.4 version safemode should be ON ? , or OFF ... View more

until now we build every ambari cluster , as the following structure: 3 Journal nodes machines ( inside each journal node we build the kafka ) 3 workers machines (data-node machines) but in order to minimize the costs we want to build one linux machine that includes one Journal node machine ( master ) + worker + kafka dose HORTON-WORKS have procedure for this structure - to build Journal node + worker + kafka on one single machine ? ... View more

hi all, we have ambari cluster on customer site ( version 2.6.1 ) cluster include the following machines: master01 , master02 , master03 , worker01-worker64 , kafka01 - kafka03 while customer want to change to these hostnames to the following: master01-03 to JNserver01-03 worker01-worker64 to DNserver01-64 kafka01-03 to KBserver01-03 what is the procedure to change all these hostnames ? ... View more