Index: src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java =================================================================== --- src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java (revision 10544) +++ src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java (working copy) @@ -93,6 +93,7 @@ import org.apache.hadoop.hbase.executor.ExecutorService; import org.apache.hadoop.hbase.executor.ExecutorService.ExecutorType; import org.apache.hadoop.hbase.io.hfile.LruBlockCache; +import org.apache.hadoop.hbase.io.hfile.LruBlockCache.CacheStats; import org.apache.hadoop.hbase.ipc.HBaseRPC; import org.apache.hadoop.hbase.ipc.HBaseRPCErrorHandler; import org.apache.hadoop.hbase.ipc.HBaseRPCProtocolVersion; @@ -1133,6 +1134,10 @@ this.metrics.blockCacheCount.set(lruBlockCache.size()); this.metrics.blockCacheFree.set(lruBlockCache.getFreeSize()); this.metrics.blockCacheSize.set(lruBlockCache.getCurrentSize()); + CacheStats cacheStats = lruBlockCache.getStats(); + this.metrics.blockCacheHitCount.set(cacheStats.getHitCount()); + this.metrics.blockCacheMissCount.set(cacheStats.getMissCount()); + this.metrics.blockCacheEvictedCount.set(lruBlockCache.getEvictedCount()); double ratio = lruBlockCache.getStats().getHitRatio(); int percent = (int) (ratio * 100); this.metrics.blockCacheHitRatio.set(percent); Index: src/main/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java =================================================================== --- src/main/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java (revision 10544) +++ src/main/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java (working copy) @@ -87,6 +87,21 @@ public final MetricsLongValue blockCacheCount = new MetricsLongValue("blockCacheCount", registry); /** + * Block cache hit count. + */ + public final MetricsLongValue blockCacheHitCount = new MetricsLongValue("blockCacheHitCount", registry); + + /** + * Block cache miss count. + */ + public final MetricsLongValue blockCacheMissCount = new MetricsLongValue("blockCacheMissCount", registry); + + /** + * Block cache evict count. + */ + public final MetricsLongValue blockCacheEvictedCount = new MetricsLongValue("blockCacheEvictedCount", registry); + + /** * Block hit ratio. */ public final MetricsIntValue blockCacheHitRatio = new MetricsIntValue("blockCacheHitRatio", registry); @@ -228,6 +243,9 @@ this.blockCacheSize.pushMetric(this.metricsRecord); this.blockCacheFree.pushMetric(this.metricsRecord); this.blockCacheCount.pushMetric(this.metricsRecord); + this.blockCacheHitCount.pushMetric(this.metricsRecord); + this.blockCacheMissCount.pushMetric(this.metricsRecord); + this.blockCacheEvictedCount.pushMetric(this.metricsRecord); this.blockCacheHitRatio.pushMetric(this.metricsRecord); this.blockCacheHitCachingRatio.pushMetric(this.metricsRecord); @@ -336,6 +354,12 @@ Long.valueOf(this.blockCacheFree.get())); sb = Strings.appendKeyValue(sb, this.blockCacheCount.getName(), Long.valueOf(this.blockCacheCount.get())); + sb = Strings.appendKeyValue(sb, this.blockCacheHitCount.getName(), + Long.valueOf(this.blockCacheHitCount.get())); + sb = Strings.appendKeyValue(sb, this.blockCacheMissCount.getName(), + Long.valueOf(this.blockCacheMissCount.get())); + sb = Strings.appendKeyValue(sb, this.blockCacheEvictedCount.getName(), + Long.valueOf(this.blockCacheEvictedCount.get())); sb = Strings.appendKeyValue(sb, this.blockCacheHitRatio.getName(), Long.valueOf(this.blockCacheHitRatio.get())); sb = Strings.appendKeyValue(sb, this.blockCacheHitCachingRatio.getName(),