YARN NodeManagers
Metrics to see status of YARN NodeManagers on the YARN cluster.
Row | Metrics | Description |
---|---|---|
NUM CONTAINERS | Containers Running | Current number of running containers. |
Containers Failed | Accumulated number of failed containers. | |
Containers Killed | Accumulated number of killed containers. | |
Containers Completed | Accumulated number of completed containers. | |
MEMORY UTILIZATION | Memory Available | Available memory for allocating containers on this node. |
Used Memory | Used memory by containers on this node. | |
DISK UTILIZATION | Disk Utilization for Good Log Dirs | Disk utilization percentage across all good log directories. |
Disk Utilization for Good Local Dirs | Disk utilization percentage across all good local directories. | |
Bad Log Dirs | Number of bad log directories. | |
Bad Local Dirs | Number of bad local directories. | |
AVE CONTAINER LAUNCH DELAY | Ave Container Launch Delay | Average time taken for a NM to launch a container. |
RPC METRICS | RPC Avg Processing Time | Average time for processing a RPC call. |
RPC Avg Queue Time | Average time for queuing a PRC call. | |
RPC Call Queue Length | The length of the RPC call queue. | |
RPC Slow Calls | Number of slow RPC calls. | |
JVM METRICS | Heap Mem Usage | Current heap memory usage. |
NonHeap Mem Usage | Current non-heap memory usage. | |
GC Count | Accumulated GC count over time. | |
GC Time | Accumulated GC time over time. | |
LOG4J METRICS | LOG ERROR | Number of ERROR logs. |
LOG FATAL | Number of FATAL logs. |