wchevreuil commented on code in PR #5905:
URL: https://github.com/apache/hbase/pull/5905#discussion_r1603657884
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hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java:
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@@ -1357,9 +1357,16 @@ public HFileBlock readBlock(long dataBlockOffset, long
onDiskBlockSize, final bo
BlockType.BlockCategory category =
hfileBlock.getBlockType().getCategory();
final boolean cacheCompressed =
cacheConf.shouldCacheCompressed(category);
final boolean cacheOnRead = cacheConf.shouldCacheBlockOnRead(category);
+ Optional<Boolean> cacheFileBlock = Optional.of(true);
+ // Additionally perform the time-based priority checks to see
+ // whether, or not to cache the block.
+ if (cacheConf.getBlockCache().isPresent()) {
+ cacheFileBlock =
cacheConf.getBlockCache().get().shouldCacheFile(getHFileInfo(), conf);
+ }
+ final boolean shouldCacheFileBlock = cacheFileBlock.get();
Review Comment:
I'm fine with have multiple `shouldCache` methods, or even overloaded
versions of `shouldCacheBlockOnRead`, but can't we have one `shouldCache` like
method in CacheConfig that combines both checks? That way HFileReaderImpl code
doesn't need to reference multiple checks and add different boolean variables
each time it needs to check it.
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