YARN-11516. Improve FederationStateStoreFacade#existsApplicationHomeSubCluster/existsReservationHomeSubCluster Log Level. (#5755)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/utils/FederationStateStoreFacade.java

@@ -806,7 +806,7 @@ public final class FederationStateStoreFacade {
         return true;
       }
     } catch (YarnException e) {
-      LOG.warn("get homeSubCluster by applicationId = {} error.", applicationId, e);
+      LOG.debug("get homeSubCluster by applicationId = {} error.", applicationId, e);
     }
     return false;
   }
@@ -893,7 +893,7 @@ public final class FederationStateStoreFacade {
         return true;
       }
     } catch (YarnException e) {
-      LOG.warn("get homeSubCluster by reservationId = {} error.", reservationId, e);
+      LOG.debug("get homeSubCluster by reservationId = {} error.", reservationId, e);
     }
     return false;
   }