Operation $compact
NOTE
The system level $compact operation is only activated if the Admin API is activated.
The system level $compact operation is used to compact column families of RocksDB databases. RockDB compaction is done automatically but in certain situations manual compaction can be useful.
POST [base]/$compactIn Parameters
| Name | Cardinality | Type | Documentation |
|---|---|---|---|
| database | 1..1 | code | One of three possible databases: index, transaction and resource |
| column-family | 1..1 | code | Name of the column family depending on the database. See below. |
Column Families
| Database | Column Family |
|---|---|
| index | search-param-value-index |
| index | resource-value-index |
| index | compartment-search-param-value-index |
| index | compartment-resource-type-index |
| index | active-search-params |
| index | tx-success-index |
| index | tx-error-index |
| index | t-by-instant-index |
| index | resource-as-of-index |
| index | type-as-of-index |
| index | system-as-of-index |
| index | patient-last-change-index |
| index | type-stats-index |
| index | system-stats-index |
| index | cql-bloom-filter |
| index | cql-bloom-filter-by-t |
| transaction | default |
| resource | default |
Response
The response will be always async according the Asynchronous Interaction Request Pattern from FHIR R5.
Using blazectl
The $compact operation can be executed using blazectl.
Example
sh
blazectl --server http://localhost:8080/fhir compact index resource-as-of-index