HDFS-16042. DatanodeAdminMonitor scan should be delay based (#3058)

amahussein · web-flow · commit a2a0283c7be8 · 2021-06-08T11:09:31.000-05:00
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeAdminManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeAdminManager.java
@@ -149,7 +149,7 @@ void activate(Configuration conf) {
       throw new RuntimeException("Unable to create the Decommission monitor " +
           "from "+cls, e);
     }
-    executor.scheduleAtFixedRate(monitor, intervalSecs, intervalSecs,
+    executor.scheduleWithFixedDelay(monitor, intervalSecs, intervalSecs,
         TimeUnit.SECONDS);
 
     LOG.debug("Activating DatanodeAdminManager with interval {} seconds, " +

Original file line number	Diff line number	Diff line change
`@@ -149,7 +149,7 @@ void activate(Configuration conf) {`
`149`	`149`	`throw new RuntimeException("Unable to create the Decommission monitor " +`
`150`	`150`	`"from "+cls, e);`
`151`	`151`	`}`
`152`		`- executor.scheduleAtFixedRate(monitor, intervalSecs, intervalSecs,`
	`152`	`+ executor.scheduleWithFixedDelay(monitor, intervalSecs, intervalSecs,`
`153`	`153`	`TimeUnit.SECONDS);`
`154`	`154`
`155`	`155`	`LOG.debug("Activating DatanodeAdminManager with interval {} seconds, " +`