Guangxu Cheng created HBASE-19561:
-------------------------------------
Summary: maxCacheSize in CacheEvictionStats can't be accumulated
repeatedly When dealing with each region
Key: HBASE-19561
URL: https://issues.apache.org/jira/browse/HBASE-19561
Project: HBase
Issue Type: Bug
Affects Versions: 2.0.0
Reporter: Guangxu Cheng
Assignee: Guangxu Cheng
{code:title=HRegionServer.java|borderStyle=solid}
public CacheEvictionStats clearRegionBlockCache(Region region) {
BlockCache blockCache = this.getCacheConfig().getBlockCache();
long evictedBlocks = 0;
for(Store store : region.getStores()) {
for(StoreFile hFile : store.getStorefiles()) {
evictedBlocks +=
blockCache.evictBlocksByHfileName(hFile.getPath().getName());
}
}
return CacheEvictionStats.builder()
.withEvictedBlocks(evictedBlocks)
.withMaxCacheSize(blockCache.getMaxSize())
.build();
}
{code}
BlockCache is the regionserver level object.If we accumulate this value for
each region, we will get a wrong result.
The value of maxCacheSize should be set to BlockCache.getMaxSize() after
processing all the regions on this regionserver.
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