pustota2009 commented on a change in pull request #1257:
URL: https://github.com/apache/hbase/pull/1257#discussion_r436531585
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
##########
@@ -947,7 +1019,47 @@ public void run() {
}
LruBlockCache cache = this.cache.get();
if (cache == null) break;
- cache.evict();
+ bytesFreed = cache.evict();
+ long stopTime = System.currentTimeMillis();
+ // If heavy cleaning BlockCache control.
+ // It helps avoid put too many blocks into BlockCache
+ // when evict() works very active.
+ if (stopTime - startTime <= 1000 * 10 - 1) {
+ mbFreedSum += bytesFreed/1024/1024;
+ } else {
+ freedDataOverheadPercent =
+ (int) (mbFreedSum * 100 / cache.heavyEvictionMbSizeLimit) - 100;
+ if (mbFreedSum > cache.heavyEvictionMbSizeLimit) {
+ heavyEvictionCount++;
+ if (heavyEvictionCount > cache.heavyEvictionCountLimit) {
+ int ch = (int) (freedDataOverheadPercent *
cache.heavyEvictionOverheadCoefficient);
+ ch = ch > 15 ? 15 : ch;
Review comment:
done
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