}
		// Migrate successful v1 => v2, proceed to v2 => v3
		version = formatErasureVersionV2
		fallthrough
	case formatErasureVersionV2:
		formatData, err = formatErasureMigrateV2ToV3(formatData, export, version)
		if err != nil {
			return nil, nil, fmt.Errorf("Drive %s: %w", export, err)
		}
		// Migrate successful v2 => v3, v3 is latest
		// version = formatXLVersionV3

     * adds to the delete cache for batch processing.
     *
     * @param paramMap the data store parameters
     * @param dataMap the data map containing the URL to delete
     * @return true if the deletion was processed successfully, false otherwise
     */
    protected boolean deleteDocument(final DataStoreParams paramMap, final Map<String, Object> dataMap) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

      super(NOT_RUN);
      this.delegate = delegate;
      this.sequencer = sequencer;
    }

    @Override
    public void execute(Runnable task) {
      // If this operation was successfully cancelled already, calling the runnable will be a noop.
      // This also avoids a race where if outputFuture is cancelled, it will call taskFuture.cancel,

    assertEquals(1, matcher.countIn(s));
  }

  /**
   * Checks that expected is equals to out, and further, if in is equals to expected, then out is
   * successfully optimized to be identical to in, i.e. that "in" is simply returned.
   */
  private void assertEqualsSame(String expected, String in, String out) {
    if (expected.equals(in)) {
      assertThat(out).isSameInstanceAs(in);

   *
   *   o DIRTY lines track that an entry is actively being created or updated. Every successful
   *     DIRTY action should be followed by a CLEAN or REMOVE action. DIRTY lines without a matching
   *     CLEAN or REMOVE indicate that temporary files may need to be deleted.
   *
   *   o CLEAN lines track a cache entry that has been successfully published and may be read. A
   *     publish line is followed by the lengths of each of its values.

                
                // Clear failover state on success
                failoverStates.remove(channel.getChannelId());
                
                log.info("Successfully recovered channel {}", channel.getChannelId());
                
            } catch (Exception e) {
                log.warn("Failed to recover channel {}: {}", 

	StateConnected

	// StateConnectionError is the state once a connection attempt has been made, and it failed.
	// The connection will remain in this stat until the connection has been successfully re-established.
	StateConnectionError

	// StateShutdown is the state when the server has been shut down.
	// This will not be used under normal operation.
	StateShutdown

      int crossOver = crossOver(vacated, toTrickle);
      if (crossOver == vacated) {
        return null;
      }
      // Successfully crossed over from min to max.
      // Bubble up max levels.
      E parent;
      // If toTrickle is moved up to a parent of removeIndex, the parent is

	// Delete remote object from warm-tier
	err := deleteObjectFromRemoteTier(ctx, oi.TransitionedObject.Name, oi.TransitionedObject.VersionID, oi.TransitionedObject.Tier)
	if err == nil {
		// Skip adding free version since we successfully deleted the
		// remote object
		opts.SkipFreeVersion = true
	} else {
		transitionLogIf(ctx, err)
	}

	// Now, delete object from hot-tier namespace

- `boost` - Document boost factor
- `label` - Access control labels
- Custom fields as defined in your configuration

**Response**:
```json
{
  "response": {
    "status": 0,
    "message": "Successfully imported 2 documents"
  }
}
```

#### Configuration API

**Endpoints** (all under `/api/admin/`):
- `webconfig` - Web crawling configurations
- `fileconfig` - File crawling configurations