YutSean commented on a change in pull request #3474:
URL: https://github.com/apache/hbase/pull/3474#discussion_r670186736
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CombinedBlockCache.java
##########
@@ -79,7 +79,13 @@ public Cacheable getBlock(BlockCacheKey cacheKey, boolean
caching,
boolean repeat, boolean updateCacheMetrics) {
// TODO: is there a hole here, or just awkwardness since in the lruCache
getBlock
// we end up calling l2Cache.getBlock.
- return lruCache.containsBlock(cacheKey)?
+ boolean existInL1 = lruCache.containsBlock(cacheKey);
+ if (!existInL1 && updateCacheMetrics) {
Review comment:
If existInL1 is false, we will not check LRU cache here so that the miss
will not be double counted.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
