Disk space

A lack of available disk space can prevent the database from storing new data, resulting in the database becoming read-only. This can also cause slowdowns as the system tries to reclaim disk space by compacting existing data more aggressively.

Diagnostics

1. See if the DB overview > Storage charts in Grafana show any spikes.

2. In Embedded UI, on the Storage tab, analyze the list of available storage groups and nodes and their disk usage.

   Tip

   Use the Out of Space filter to list only the storage groups with full disks.

   

Recommendations

Add more storage groups to the database.

If the cluster doesn't have spare storage groups, configure them first. Add additional storage nodes, if necessary.