Hi - I'm just getting started with Samza. I got the hello-samza example working properly in the vagrant box. Then I wrote 2 new tasks, rebuilt everything and submitted them to yarn using run-job.sh. These 2 new jobs show up in the yarn web ui, however only one of them has State=RUNNING, the other just sits forever at State=ACCEPTED.
The Cluster Metrics section shows some interesting things: - Apps Pending = 1 - Apps Running = 4 - Containers Running = 8 - Memory Used = 8 GB - Memory Total = 8 GB - Memory Reserved = 0 B Again I'm really new to samza & yarn, but does this mean that the node on this vagrant box has 8 GB memory available but all 8 GB is being used, so it can't run the 5th samza job? Are there 8 containers running because each Samza job has an ApplicationMaster and a SamzaContainer? Are each of those containers using 1 GB memory, and that's why all the available memory is used up? Do these containers really need 1 GB memory each? Can this be adjusted somehow? Just trying to better understand what's going on here, and see if there's a simple way to get both of my new tasks running in hello-samza. Thanks, Zach
