Blobs Endpoint

Garbage Collect Document's Blobs

DELETE /management/blobs/orphaned

Garbage collect all the orphaned document's blobs (which are not referenced by any documents anymore). Available since 2021.38.

Query Parameters

Parameter Name	Type	Description	Notes
dryRun	boolean	Do not effectively delete blobs	Optional, default is false
queryLimit	long	Limit the number of blob to be GC	Optional, default is unlimited

Response

If successful, returns a bulk status entity representing the bulk action status of the garbage collection bulk action.

The garbage collection can be monitored using the Bulk Endpoint.

Status Codes

200 OK - Success.
409 Conflict - A garbage collect is already in progress.
501 OK - Not implemented.

This garbage collection is only implemented on instances working with:

repositories having the ecm:blobKeys capability (introduced by https://jira.nuxeo.com/browse/NXP-29516) i.e. MongoDB
blob providers extending BlobStoreBlobProvider such as S3BlobProvider and LocalBlobProvider

Sample

Invoke GC:

curl -X DELETE -u Administrator:Administrator \
http://localhost:8080/nuxeo/api/v1/management/blobs/orphaned

{
  "entity-type": "bulkStatus",
  "commandId": "09361005-59a9-4f00-9ff1-78de52988eb5",
  "state": "SCHEDULED",
  "processed": 0,
  "skipCount": 0,
  "error": false,
  "errorCount": 0,
  "total": 0,
  "action": "garbageCollectOrphanBlobs",
  "username": "system",
  "submitted": "2023-05-15T16:24:00.863Z",
  "scrollStart": null,
  "scrollEnd": null,
  "processingStart": null,
  "processingEnd": null,
  "completed": null,
  "processingMillis": 0
}

Then monitor the GC with:

curl -u Administrator:Administrator \
http://localhost:8080/nuxeo/api/v1/management/bulk/09361005-59a9-4f00-9ff1-78de52988eb5

{
  "entity-type": "bulkStatus",
  "commandId": "09361005-59a9-4f00-9ff1-78de52988eb5",
  "state": "COMPLETED",
  "processed": 79,
  "skipCount": 78,
  "error": false,
  "errorCount": 0,
  "total": 79,
  "action": "garbageCollectOrphanBlobs",
  "username": "system",
  "submitted": "2023-05-15T16:54:50.345Z",
  "scrollStart": "2023-05-15T16:54:50.431Z",
  "scrollEnd": "2023-05-15T16:54:50.675Z",
  "processingStart": "2023-05-15T16:54:50.702Z",
  "processingEnd": "2023-05-15T16:54:50.805Z",
  "completed": "2023-05-15T16:54:50.843Z",
  "processingMillis": 103,
  "result": {
    "totalSize": 8942206,
    "deletedSize": 11210,
    "dryRun": false
  }
}

where:

processed is the total count of scrolled blobs from the blob provider(s) of the repository
skipCount is the total count of blobs that were not GC (because still referenced in the repository)
processed - skipCount is the total count of blobs that were garbage collected i.e. detected as orphaned (here 79-78 = 1 blob)
result.totalSize is the sum of the size of all the scrolled blob from the blob provider(s) of the repository in bytes (here ~8 MB)
result.deletedSize is the sum of the size of the blobs that were garbage collected in bytes (here ~10 KB)
dryRun whether the blobs were effectively deleted

Learn More

Garbage-Collecting Orphaned Blobs.