saurabhd336 commented on code in PR #8828:
URL: https://github.com/apache/pinot/pull/8828#discussion_r930643047


##########
pinot-controller/src/main/java/org/apache/pinot/controller/api/resources/PinotSegmentRestletResource.java:
##########
@@ -577,6 +598,98 @@ public SuccessResponse reloadSegmentDeprecated2(
     return reloadSegmentDeprecated1(tableName, segmentName, tableTypeStr);
   }
 
+  @GET
+  @Path("tables/{tableName}/segmentReloadStatus/{jobId}")
+  @Produces(MediaType.APPLICATION_JSON)
+  @ApiOperation(value = "Get status for a submitted reload operation",
+      notes = "Get status for a submitted reload operation")
+  public ServerReloadControllerJobStatusResponse getReloadJobStatus(
+      @ApiParam(value = "Name of the table", required = true) 
@PathParam("tableName") String tableName,
+      @ApiParam(value = "OFFLINE|REALTIME", required = true) 
@QueryParam("type") String tableTypeStr,
+      @ApiParam(value = "Reload job id", required = true) @PathParam("jobId") 
String reloadJobId)
+      throws Exception {
+    TableType tableTypeFromRequest = Constants.validateTableType(tableTypeStr);
+    String tableNameWithType = 
TableNameBuilder.forType(tableTypeFromRequest).tableNameWithType(tableName);
+    Map<String, List<String>> serverToSegments = 
_pinotHelixResourceManager.getServerToSegmentsMap(tableNameWithType);
+    Map<String, String> controllerJobZKMetadata = 
_pinotHelixResourceManager.getControllerJobZKMetadata(reloadJobId);
+
+    if (controllerJobZKMetadata == null) {
+      throw new ControllerApplicationException(LOGGER,
+          "Failed to find controller job: " + reloadJobId + " for table: " + 
tableNameWithType, Status.NOT_FOUND);
+    }
+
+    String singleSegmentName = null;
+    if 
(controllerJobZKMetadata.get(CommonConstants.ControllerJob.CONTROLLER_JOB_TYPE).equals(
+        ControllerJobType.RELOAD_SEGMENT.toString())) {
+      singleSegmentName = 
controllerJobZKMetadata.get(CommonConstants.ControllerJob.SEGMENT_RELOAD_JOB_SEGMENT_NAME);
+    }
+
+    BiMap<String, String> serverEndPoints =
+        
_pinotHelixResourceManager.getDataInstanceAdminEndpoints(serverToSegments.keySet());
+    CompletionServiceHelper completionServiceHelper =
+        new CompletionServiceHelper(_executor, _connectionManager, 
serverEndPoints);
+
+    List<String> serverUrls = new ArrayList<>();

Review Comment:
   `Map<String, List<String>> serverToSegments = 
_pinotHelixResourceManager.getServerToSegmentsMap(tableNameWithType);`
   Is already only getting the servers from the ideal state?



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