From f26e14a1b1e2ef51e8bca9132d98ccd29270ec19 Mon Sep 17 00:00:00 2001
From: zjushch <zjushch@unknown>
Date: Thu, 10 Jan 2013 08:36:50 +0000
Subject: [PATCH] HBASE-7504 -ROOT- may be offline forever after FullGC of RS
 (Chunhui)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1431208 13f79535-47bb-0310-9956-ffa450edef68
---
 .../hadoop/hbase/master/handler/ServerShutdownHandler.java  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
index dd8c0617bfe..d6e5fca5623 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
@@ -107,6 +107,12 @@ public class ServerShutdownHandler extends EventHandler {
       getLong("hbase.catalog.verification.timeout", 1000);
     if (!this.server.getCatalogTracker().verifyRootRegionLocation(timeout)) {
       this.services.getAssignmentManager().assignRoot();
+    } else if (serverName.equals(server.getCatalogTracker().getRootLocation())) {
+      throw new IOException("-ROOT- is onlined on the dead server "
+          + serverName);
+    } else {
+      LOG.info("Skip assigning -ROOT-, because it is online on the "
+          + server.getCatalogTracker().getRootLocation());
     }
   }