| Interface | Description | 
|---|---|
| DataSegmentAnnouncer | |
| DataSegmentAnnouncerProvider | |
| DataSegmentChangeCallback | |
| DataSegmentChangeHandler | |
| DataSegmentChangeRequest | |
| DataSegmentServerAnnouncer | Deprecated | 
| Class | Description | 
|---|---|
| BatchDataSegmentAnnouncer | |
| BatchDataSegmentAnnouncerProvider | |
| CuratorDataSegmentServerAnnouncer | Deprecated | 
| DruidServerMetadata | |
| SegmentChangeRequestDrop | |
| SegmentChangeRequestHistory | 
 This class keeps a bounded list of segment updates made on the server such as adding/dropping segments. 
 | 
| SegmentChangeRequestHistory.Counter | |
| SegmentChangeRequestLoad | |
| SegmentChangeRequestNoop | |
| SegmentChangeRequestsSnapshot | 
 Return type of SegmentChangeRequestHistory.getRequestsSince(counter). 
 | 
| SegmentLoadDropHandler | |
| SegmentLoadDropHandler.DataSegmentChangeRequestAndStatus | |
| SegmentLoadDropHandler.Status | |
| ServerManager | |
| ZkCoordinator | Deprecated | 
| Enum | Description | 
|---|---|
| SegmentLoadDropHandler.Status.STATE | |
| ServerType | 
 This enum represents types of druid services that hold segments. 
 | 
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