Compaction metrics
Monitoring compaction performance is an important aspect of knowing when to add capacity to your cluster.
Monitoring compaction performance is an important aspect of knowing when to add capacity to
your cluster. The following attributes are exposed through CompactionManagerMBean:
| Attribute | Description |
|---|---|
| CompletedTasks | Number of completed compactions since the last start of this Cassandra instance |
| PendingTasks | Number of estimated tasks remaining to perform |
| ColumnFamilyInProgress | The table currently being compacted. This attribute is null if no compactions are in progress. |
| BytesTotalInProgress | Total number of data bytes (index and filter are not included) being compacted. This attribute is null if no compactions are in progress. |
| BytesCompacted | The progress of the current compaction. This attribute is null if no compactions are in progress. |