tkhurana commented on code in PR #2352:
URL: https://github.com/apache/phoenix/pull/2352#discussion_r2733633204


##########
phoenix-core-server/src/main/java/org/apache/phoenix/coprocessor/PhoenixRegionServerEndpoint.java:
##########
@@ -58,18 +64,25 @@ public class PhoenixRegionServerEndpoint extends
   private static final Logger LOGGER = 
LoggerFactory.getLogger(PhoenixRegionServerEndpoint.class);
   private MetricsMetadataCachingSource metricsSource;
   protected Configuration conf;
-  private String zkUrl;
+  private ExecutorService prewarmExecutor;
 
   // regionserver level thread pool used by Uncovered Indexes to scan data 
table rows
   private static TaskRunner uncoveredIndexThreadPool;
 
   @Override
   public void start(CoprocessorEnvironment env) throws IOException {
     this.conf = env.getConfiguration();
-    this.metricsSource =
-      
MetricsPhoenixCoprocessorSourceFactory.getInstance().getMetadataCachingSource();
-    initUncoveredIndexThreadPool(this.conf);

Review Comment:
   @lokiore This initialization is needed. It is causing failures in all 
uncovered index ITs



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