}
		pi, err := pool.PutObjectPart(ctx, bucket, object, uploadID, partID, data, opts)
		if err == nil {
			return pi, nil
		}
		if _, ok := err.(InvalidUploadID); ok {
			// Look for information on the next pool
			continue
		}
		// Any other unhandled errors such as quorum return.
		return PartInfo{}, err
	}

	return PartInfo{}, InvalidUploadID{
		Bucket:   bucket,
		Object:   object,

		allDistNames = append(allDistNames, parentUser)
	}

	expiredUsers, err := sys.LDAPConfig.GetNonEligibleUserDistNames(allDistNames)
	if err != nil {
		// Log and return on error - perhaps it'll work the next time.
		iamLogIf(GlobalContext, err)
		return
	}

	// We ignore any errors
	_ = sys.store.DeleteUsers(ctx, expiredUsers)
}

			goi, _, gerr := er.getObjectInfoAndQuorum(ctx, bucket, object, opts)
			if gerr != nil && goi.Name == "" {
				if _, ok := gerr.(InsufficientReadQuorum); ok {
					// Add an MRF heal for next time.
					er.addPartial(bucket, object, opts.VersionID)

					return objInfo, InsufficientWriteQuorum{}
				}
				return objInfo, gerr
			}

	defer store.unlock()

	// We should only update the in-memory cache if there were no changes
	// to the in-memory cache since the disk loading began. If there
	// were changes to the in-memory cache we should wait for the next
	// cycle until we can safely update the in-memory cache.
	//
	// An in-memory cache must be replaced only if we know for sure that the
	// values loaded from disk are not stale. They might be stale if the

		// upload an object such as `prefix/object/xl.meta`
		// where `prefix/object` is already an object
		if isSysErrNotDir(err) && runtime.GOOS != globalWindowsOSName {
			// NOTE: On windows the error happens at
			// next line and returns appropriate error.
			return res, errFileAccessDenied
		}
		if !osIsNotExist(err) {
			return res, osErrToFileErr(err)
		}
		if formatLegacy {
			// errFileNotFound comes here.

		}
		if topDeleteMarker && idx == 0 && xl.Type == DeleteType {
			hidden = true
			return errDoneForNow
		}
		if !xl.FreeVersion() {
			hidden = false
			return errDoneForNow
		}
		// Check next version
		return nil
	})
	return hidden

```
NODE_ENV=webhook node thumbnail-webhook.js
```

Thumbnailer starts running at `http://localhost:3000/`. Next, configure the MinIO server to send notifications to this URL (as mentioned in step 1) and use `mc` to set up bucket notifications (as mentioned in step 2). Then upload a JPEG image to MinIO server by

```