fix 500/NPE of region.jsp (#1033)

Signed-off-by: Wellington Chevreuil <wchevreuil@apache.org>
apache · Jan 15, 2020 · d60ce17 · d60ce17
1 parent c1ba3bf
commit d60ce17
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/hbase-server/src/main/resources/hbase-webapps/regionserver/region.jsp b/hbase-server/src/main/resources/hbase-webapps/regionserver/region.jsp
@@ -32,8 +32,13 @@
   HRegionServer rs = (HRegionServer) getServletContext().getAttribute(HRegionServer.REGIONSERVER);
 
   Region region = rs.getRegion(regionName);
-  String displayName = RegionInfoDisplay.getRegionNameAsStringForDisplay(region.getRegionInfo(),
-    rs.getConfiguration());
+  String displayName;
+  if (region != null) {
+    displayName = RegionInfoDisplay.getRegionNameAsStringForDisplay(region.getRegionInfo(),
+            rs.getConfiguration());
+  } else {
+    displayName = "region {" + regionName + "} is not currently online on this region server";
+  }
   pageContext.setAttribute("pageTitle", "HBase RegionServer: " + rs.getServerName());
 %>
 <jsp:include page="header.jsp">