ragarkar commented on code in PR #5339:
URL: https://github.com/apache/hbase/pull/5339#discussion_r1281684251


##########
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/PrefetchExecutor.java:
##########
@@ -53,7 +56,8 @@ public final class PrefetchExecutor {
   private static final Map<Path, Future<?>> prefetchFutures = new 
ConcurrentSkipListMap<>();
   /** Set of files for which prefetch is completed */
   @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = 
"MS_SHOULD_BE_FINAL")
-  private static HashMap<String, Boolean> prefetchCompleted = new HashMap<>();
+  private static ConcurrentHashMap<String, Long> regionPrefetchSizeMap = new 
ConcurrentHashMap<>();
+  private static HashMap<String, Map<String, Long>> prefetchCompleted = new 
HashMap<>();

Review Comment:
   Updated the code as per the suggestion. Replaced HashMap and 
ConcurrentHashMap to Map.



##########
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/PrefetchExecutor.java:
##########
@@ -53,7 +56,8 @@ public final class PrefetchExecutor {
   private static final Map<Path, Future<?>> prefetchFutures = new 
ConcurrentSkipListMap<>();
   /** Set of files for which prefetch is completed */
   @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = 
"MS_SHOULD_BE_FINAL")
-  private static HashMap<String, Boolean> prefetchCompleted = new HashMap<>();
+  private static ConcurrentHashMap<String, Long> regionPrefetchSizeMap = new 
ConcurrentHashMap<>();

Review Comment:
   Done.



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