From 4d052a2456f30bba39c033bfac749d7973b3006c Mon Sep 17 00:00:00 2001
From: cxzl25 <cxzl25@users.noreply.github.com>
Date: Wed, 26 Apr 2023 04:41:11 +0800
Subject: [PATCH] HDFS-16672. Fix lease interval comparison in
 BlockReportLeaseManager (#4598). Contributed by dzcxzl.

Reviewed-by: He Xiaoqiao <hexiaoqiao@apache.org>
Signed-off-by: Ayush Saxena <ayushsaxena@apache.org
---
 .../hdfs/server/blockmanagement/BlockReportLeaseManager.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockReportLeaseManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockReportLeaseManager.java
index 3560a36dde..2dc4a2b0e6 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockReportLeaseManager.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockReportLeaseManager.java
@@ -267,7 +267,7 @@ public synchronized long requestLease(DatanodeDescriptor dn) {
 
   private synchronized boolean pruneIfExpired(long monotonicNowMs,
                                               NodeData node) {
-    if (monotonicNowMs < node.leaseTimeMs + leaseExpiryMs) {
+    if (monotonicNowMs - node.leaseTimeMs < leaseExpiryMs) {
       return false;
     }
     LOG.info("Removing expired block report lease 0x{} for DN {}.",