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

joshelser · web-flow · commit 13f3b1787077 · 2021-12-14T23:17:34.000+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
@@ -1844,6 +1844,8 @@ 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
`@@ -1844,6 +1844,8 @@ public boolean skipRegionManagementAction(final String action) {`
`1844`	`1844`	`}`
`1845`	`1845`
`1846`	`1846`	`public BalanceResponse balance(BalanceRequest request) throws IOException {`
	`1847`	`+ checkInitialized();`
	`1848`	`+`
`1847`	`1849`	`BalanceResponse.Builder responseBuilder = BalanceResponse.newBuilder();`
`1848`	`1850`
`1849`	`1851`	`if (loadBalancerTracker == null`