HBASE-26550 Make sure the master is running normally before accepting a balance command (#3928)

joshelser · Apache9 · commit 2bfb743d79ef · 2021-12-14T23:32:34.000+08:00
Signed-off-by: Duo Zhang &lt;zhangduo@apache.org&gt;
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
@@ -1827,6 +1827,8 @@ public boolean skipRegionManagementAction(final String action) {
   }
 
   public BalanceResponse balance(BalanceRequest request) throws IOException {
+    checkInitialized();
+
     BalanceResponse.Builder responseBuilder = BalanceResponse.newBuilder();
 
     if (loadBalancerTracker == null

Original file line number	Diff line number	Diff line change
`@@ -1827,6 +1827,8 @@ public boolean skipRegionManagementAction(final String action) {`
`1827`	`1827`	`}`
`1828`	`1828`
`1829`	`1829`	`public BalanceResponse balance(BalanceRequest request) throws IOException {`
	`1830`	`+ checkInitialized();`
	`1831`	`+`
`1830`	`1832`	`BalanceResponse.Builder responseBuilder = BalanceResponse.newBuilder();`
`1831`	`1833`
`1832`	`1834`	`if (loadBalancerTracker == null`