From a400a66de7109637f1efb3ef3862b03ce0d70f9f Mon Sep 17 00:00:00 2001
From: litao <tomleescut@gmail.com>
Date: Mon, 30 May 2022 02:53:50 +0800
Subject: [PATCH] HBASE-27066 The Region Visualizer display failed (#4472)

Signed-off-by: Andrew Purtell <apurtell@apache.org>
---
 .../hbase/tmpl/master/MasterStatusTmpl.jamon    |  2 +-
 .../tmpl/master/RegionVisualizerTmpl.jamon      | 17 ++++++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
index c55013dd67b6..226fd495f0cd 100644
--- a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
+++ b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
@@ -278,7 +278,7 @@ AssignmentManager assignmentManager = master.getAssignmentManager();
         </section>
         <section>
             <h2><a name="region_visualizer"></a>Region Visualizer</h2>
-            <& RegionVisualizerTmpl &>
+            <& RegionVisualizerTmpl; master = master &>
         </section>
         <section>
             <h2><a name="peers">Peers</a></h2>
diff --git a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon
index e04a81147c08..b2d204f797a5 100644
--- a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon
+++ b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon
@@ -16,6 +16,21 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 </%doc>
+<%args>
+HMaster master;
+</%args>
+<%import>
+org.apache.hadoop.hbase.master.HMaster;
+org.apache.hadoop.hbase.ServerName;
+org.apache.hbase.thirdparty.com.google.common.base.Preconditions;
+</%import>
+
+<%java>
+ServerName active_master = master.getActiveMaster().orElse(null);
+Preconditions.checkState(active_master != null, "Failed to retrieve active master's ServerName!");
+String activeHostname = active_master.getHostname();
+int activeInfoPort = master.getActiveMasterInfoPort();
+</%java>
 
     <script type="text/javascript" src="/static/js/vega@5.19.1.min.js"></script>
     <script type="text/javascript" src="/static/js/vega-lite@5.0.0.min.js"></script>
@@ -29,7 +44,7 @@ limitations under the License.
           description: 'Total `storefileSize` per Region Server',
           data: {
             name: 'region_info',
-            url: 'http://localhost:16010/api/v1/admin/cluster_metrics/live_servers',
+            url: 'http://<% activeHostname %>:<% activeInfoPort %>/api/v1/admin/cluster_metrics/live_servers',
             format: { type: 'json', property: 'data' }
           },
           transform: [