[HBASE-16157] The incorrect block cache count and size are caused by removing duplicate block key in the LruBlockCache

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 1.4.0, 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Chia-Ping Tsai
• Reporter: Chia-Ping Tsai
• Created: 30/Jun/16 18:21
• Updated: 06/Jul/16 02:00
• Resolved: 05/Jul/16 20:57

Description

LruBlockCache.java

// Check return value from the Map#remove before updating the metrics
  protected long evictBlock(LruCachedBlock block, boolean evictedByEvictionProcess) {
    map.remove(block.getCacheKey());
    updateSizeMetrics(block, true);
...
}