An iteration of the Hoya slides put up as part of a review of the code with others writing YARN services; looks at what Hoya offers -what we need from Apps to be able to deploy them this way, and what we need from YARN
JMX port binding & publishing of portweb port rolling restart of NM/RMAM retry logicTesting: chaos monkey for YARNLogging: running Samza without HDFS -costs of ops & latency. Are only running Samza clusters w/ YARN. YARN puts logs into HDFS by default, so without HDFS you are stuffed.-rollover of stdout & stderr -have the NM implement the rolling. -Samza could log from log4j to append to Kafka; need a way to pull out and view. Adds 15 min YARN can use http: URLs to pull in local resourceSamza can handle outages of a few minutes, but for other services rolling restart/upgadeno classic scheduling; assume full code can run or buy more hardware-RM to tell AM when request cant be satisfied