This is what I see on Yarn monitoring page: As we can see, there are 9998 apps pending. There is some 10k limit we are hitting. I see only 1 app running.
Apps SubmittedApps PendingApps RunningApps CompletedContainers RunningMemory UsedMemory TotalMemory ReservedVCores UsedVCores TotalVCores ReservedActive NodesDecommissioned NodesLost NodesUnhealthy NodesRebooted Nodes1000199981222 GB8 GB0 B2801 <http://sprdargas403.corp.intuit.net:8088/cluster/nodes>0 <http://sprdargas403.corp.intuit.net:8088/cluster/nodes/decommissioned>0 <http://sprdargas403.corp.intuit.net:8088/cluster/nodes/lost>0 <http://sprdargas403.corp.intuit.net:8088/cluster/nodes/unhealthy>0 <http://sprdargas403.corp.intuit.net:8088/cluster/nodes/rebooted> Show 20406080100 entries Search: ID User Name Application Type Queue StartTime FinishTime State FinalStatus Progress Tracking UI application_1431716639228_0120 <http://sprdargas403.corp.intuit.net:8088/cluster/app/application_1431716639228_0120> rootArgos_1SamzadefaultFri, 15 May 2015 19:10:21 GMTN/ARUNNINGUNDEFINED ApplicationMaster <http://sprdargas403.corp.intuit.net:8088/proxy/application_1431716639228_0120/>