Kota-SH commented on code in PR #4726:
URL: https://github.com/apache/hbase/pull/4726#discussion_r956201256
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hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/PrefetchExecutor.java:
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@@ -44,12 +50,15 @@ public final class PrefetchExecutor {
/** Futures for tracking block prefetch activity */
private static final Map<Path, Future<?>> prefetchFutures = new
ConcurrentSkipListMap<>();
+ /** Set of files for which prefetch is completed */
+ public static HashMap<String, Boolean> prefetchCompleted = new HashMap<>();
Review Comment:
Thanks for the review Wellington :)
Yes, my initial approach was to use a set. But I could find a protobuf
support for HashSet.
Also, I wanted to maintain a unique set of filenames so I could avoid doing
a duplicate check. So I chose a map implementation.
https://developers.google.com/protocol-buffers/docs/reference/java-generated#map-fields
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