rda3mon commented on a change in pull request #3359:
URL: https://github.com/apache/hbase/pull/3359#discussion_r677948243



##########
File path: 
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/BackupInfo.java
##########
@@ -351,19 +355,19 @@ public void setIncrBackupFileList(List<String> 
incrBackupFileList) {
 
   /**
    * Set the new region server log timestamps after distributed log roll
-   * @param newTableSetTimestampMap table timestamp map
+   * @param prevTableSetTimestampMap table timestamp map
    */
-  public void setIncrTimestampMap(HashMap<TableName,
-          HashMap<String, Long>> newTableSetTimestampMap) {
-    this.tableSetTimestampMap = newTableSetTimestampMap;
+  public void setIncrTimestampMap(Map<TableName,
+          Map<String, Long>> prevTableSetTimestampMap) {
+    this.incrTimestampMap = prevTableSetTimestampMap;

Review comment:
       `incrTimestampMap` is used by incremental backup to check when was 
previous backup logroll happened so that it can take backup since then. and 
stored as part of backup manifest.




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