I’m using Hadoop 2.6.0 from HDP 2.2.4 installed via Ambari 2.0 I’m testing the YARN HA ResourceManager failover. If I STOP the active ResourceManager (shut the machine off), the standby ResourceManager is elected to active, but the NodeManagers do not register themselves with the newly elected active ResourceManager. If I restart the machine (but DO NOT resume the YARN services) the NodeManagers register with the newly elected ResourceManager and my jobs resume. I assume I have some bad configuration, as this produces a SPOF, and is not HA in the sense I’m expecting.
Thanks, mn
