b-slim commented on a change in pull request #944: [Hive-22760] Adding Clock
based eviction strategy.
URL: https://github.com/apache/hive/pull/944#discussion_r396568465
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/cache/LlapAllocatorBuffer.java
##########
@@ -80,9 +80,32 @@ int tryIncRef() {
return incRefInternal(false);
}
+ /**
+ *
+ */
+ @Override
+ public final void setClockBit() {
+ long val = state.get();
+ while (!State.isClockBitSet(val) && !state.compareAndSet(val,
State.setClockBit(val))) {
+ val = state.get();
+ }
+ }
+ @Override
+ public final void unSetClockBit() {
Review comment:
did merge it let me know what you think.
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