Collector Type: Agent
Category: Application Monitors
Application Name: Ceph
Global Template Name: Template not created in portal
Introduction
Ceph is highly reliable, easy to manage, and free. Ceph delivers extraordinary scalability: thousands of clients accessing exabytes of data. This monitor is to track disk usage across storage pools, receive service checks in case of issues and monitors I/O performance metrics.
Parameters
| Name | Default Value | Description |
|---|---|---|
| Ceph Socket Directory | /var/run/ceph | Ceph Admin Socket |
Collected Metrics
| Metric Name | Display Name | Description |
|---|---|---|
| ceph.commit_latency_ms | Ceph Commit Latency | Time taken to commit an operation to the journal. |
| ceph.apply_latency_ms | Ceph Apply Latency | Time taken to flush an update to disks. |
| ceph.op_per_sec | Ceph Operation | IO operations per second for given pool. |
| ceph.read_bytes_sec | Ceph Read | Bytes/second being read. |
| ceph.write_bytes_sec | Ceph Write | Bytes/second being written. |
| ceph.num_osds | Ceph Number Of Osds | Number of known storage daemons. |
| ceph.num_in_osds | Ceph Number Of Participating Osds | Number of participating storage daemons. |
| ceph.num_up_osds | Ceph Number Of Up Osds | Number of online storage daemons. |
| ceph.num_pgs | Ceph Number Pgs | Number of placement groups available. |
| ceph.num_mons | Ceph Number Of Monitor | Number of monitor daemons. |
| ceph.aggregate_pct_used | Ceph Aggregate Percentage Used | Overall capacity usage metric. |
| ceph.total_objects | Ceph Total Objects | Object count from the underlying object store. |
| ceph.num_objects | Ceph Number Objects | Object count for a given pool. |
| ceph.read_bytes | Ceph Read Bytes | Per-pool read bytes. |
| ceph.write_bytes | Ceph Write Bytes | Per-pool write bytes. |
| ceph.num_pools | Ceph Number Pools | Number of pools. |
| ceph.pgstate.active_clean | Ceph Pgstate Active Clean | Overall capacity usage metric. |
| ceph.read_op_per_sec | Ceph Read Operation Per Second | Per-pool read operations/second. |
| ceph.write_op_per_sec | Ceph Write Operation Per Second | Per-pool write operations/second. |
| ceph.num_near_full_osds | Ceph Number Near Full Osds | Number of nearly full osds. |
| ceph.num_full_osds | Ceph Number Full Osds | Number of full osds. |
| ceph.osd.pct_used | Ceph Osd Percentage Used | Percentage used of full/near full osds. |
| cassandra.compaction.bytes_compacted | Cassandra Compacted Bytes | Compacted bytes size. |