wchevreuil commented on code in PR #5808:
URL: https://github.com/apache/hbase/pull/5808#discussion_r1565426828
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hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFilePreadReader.java:
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@@ -37,6 +38,17 @@ public class HFilePreadReader extends HFileReaderImpl {
public HFilePreadReader(ReaderContext context, HFileInfo fileInfo,
CacheConfig cacheConf,
Configuration conf) throws IOException {
super(context, fileInfo, cacheConf, conf);
+
+ try {
+ DataTieringManager dataTieringManager = DataTieringManager.getInstance();
+ if (!dataTieringManager.isHotData(this)) {
+ LOG.debug("Data tiering is enabled for path '{}' and it is not hot
data", path);
+ return;
+ }
+ } catch (IllegalStateException e) {
+ LOG.error("Error while getting DataTieringManager instance: {}",
e.getMessage());
Review Comment:
It seems you are adding a reader dependency on DataTieringManager mainly to
create an HFileInfo instance and infer the max/min timestamps. Can't you just
pass the fileInfo attr to the shouldCacheFile method?
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