Alarm Status View
The Alarm Status view displays the following information about nodes in the cluster:
- Hlth - each node's health: healthy, degraded, critical, or maintenance
- Hostname - DNS hostname for nodes in this cluster
- Version Alarm - one or more services on the node are running an unexpected version
- No Heartbeat Alarm - node is not undergoing maintenance, and no heartbeat is detected for over 5 minutes
- UID Mismatch Alarm - services in the cluster are being run with different user names (UIDs)
- Duplicate HostId Alarm - two or more nodes in the cluster have the same host id
Alarm Status Alerts
| Too Many Containers Alarm | The number of containers on this node reached the maximum limit |
| Excess Logs Alarm | Debug logging is enabled on the node (debug logging generates enormous amounts of data and can fill up disk space) |
| Disk Failure Alarm | A disk has failed on the node |
| Time Skew Alarm | The clock on the node is out of sync with the master CLDB by more than 20 seconds |
| Root Partition Full Alarm | The root partition ("/") on the node is running out of space (99% full) |
| Installation Directory Full Alarm | The partition /opt/mapr on the node is running out of space (95% full) |
| Core Present Alarm | A service on the node has crashed and created a core dump file |
| High FileServer Memory Alarm | The memory consumed by fileserver service on the node is high |
| Pam Misconfigured Alarm | The PAM authentication on the node is configured incorrectly |
| TaskTracker Local Directory Full Alarm | The local directory used by the TaskTracker on the specified node(s) is full, and the TaskTracker cannot operate as a result |
| CLDB Alarm | The CLDB service on the node has stopped running |
| FileServer Alarm | The FileServer service on the node has stopped running |
| JobTracker Alarm | The JobTracker service on the node has stopped running |
| TaskTracker Alarm | The TaskTracker service on the node has stopped running |
| HBase Master Alarm | The HBase Master service on the node has stopped running |
| HBase RegionServer Alarm | The HBase RegionServer service on the node has stopped running |
| NFS Gateway Alarm | The NFS service on the node has stopped running |
| WebServer Alarm | The WebServer service on the node has stopped running |
| HostStats Alarm | The HostStats service has stopped running |
| Metrics write problem Alarm | The metric data was not written to the database |