anoopsjohn commented on a change in pull request #257: HBASE-22463 Some paths
in HFileScannerImpl did not consider block#release which will exhaust the
ByteBuffAllocator
URL: https://github.com/apache/hbase/pull/257#discussion_r288848488
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
##########
@@ -522,16 +522,9 @@ public Cacheable getBlock(BlockCacheKey cacheKey, boolean
caching, boolean repea
if (victimHandler != null && !repeat) {
// The handler will increase result's refCnt for RPC, so need no extra
retain.
Cacheable result = victimHandler.getBlock(cacheKey, caching, repeat,
updateCacheMetrics);
-
// Promote this to L1.
if (result != null) {
if (caching) {
- if (result instanceof HFileBlock && ((HFileBlock)
result).usesSharedMemory()) {
Review comment:
As part of the new issue, we have to handle here also.. Because when it is
shared memory, we can not keep the block as is in LRU cache.
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