Guanghao Zhang created HBASE-16460:
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Summary: Can't rebuild the BucketAllocator's data structures when
BucketCache use FileIOEngine
Key: HBASE-16460
URL: https://issues.apache.org/jira/browse/HBASE-16460
Project: HBase
Issue Type: Bug
Components: BucketCache
Affects Versions: 2.0.0
Reporter: Guanghao Zhang
Assignee: Guanghao Zhang
When bucket cache use FileIOEngine, it will rebuild the bucket allocator's data
structures from a persisted map. So it should first read the map from
persistence file then use the map to new a BucketAllocator. But now the code
has wrong sequence in retrieveFromFile() method of BucketCache.java.
{code}
BucketAllocator allocator = new BucketAllocator(cacheCapacity,
bucketSizes, backingMap, realCacheSize);
backingMap = (ConcurrentHashMap<BlockCacheKey, BucketEntry>)
ois.readObject();
{code}
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