szlta commented on a change in pull request #1159:
URL: https://github.com/apache/hive/pull/1159#discussion_r444771962
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/cache/LowLevelCacheImpl.java
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@@ -305,10 +305,10 @@ private boolean lockBuffer(LlapDataBuffer buffer, boolean
doNotifyPolicy) {
long offset = ranges[i].getOffset() + baseOffset;
assert buffer.declaredCachedLength ==
LlapDataBuffer.UNKNOWN_CACHED_LENGTH;
buffer.declaredCachedLength = ranges[i].getLength();
- buffer.setTag(tag);
while (true) { // Overwhelmingly executes once, or maybe twice
(replacing stale value).
LlapDataBuffer oldVal = subCache.getCache().putIfAbsent(offset,
buffer);
if (oldVal == null) {
+ buffer.setFileCache(subCache);
Review comment:
This sets the reference from buffer to filecache instance alright.
But as far as I see this only happens when LowLevelCacheImpl is used, aka
caching Orc files, how does this reference setting happen with the
SerdeLowLevelCache (text based files)?
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