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From 翟玉勇 (JIRA) <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-12776) when memtable flush Statistics thisOffHeap error
Date Wed, 12 Oct 2016 03:44:20 GMT
翟玉勇 created CASSANDRA-12776:
-------------------------------

             Summary: when memtable flush Statistics thisOffHeap error
                 Key: CASSANDRA-12776
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12776
             Project: Cassandra
          Issue Type: Bug
          Components: Tools
            Reporter: 翟玉勇
            Priority: Trivial


if (largest != null)
            {
                float usedOnHeap = Memtable.MEMORY_POOL.onHeap.usedRatio();
                float usedOffHeap = Memtable.MEMORY_POOL.offHeap.usedRatio();
                float flushingOnHeap = Memtable.MEMORY_POOL.onHeap.reclaimingRatio();
                float flushingOffHeap = Memtable.MEMORY_POOL.offHeap.reclaimingRatio();
                float thisOnHeap = largest.getAllocator().onHeap().ownershipRatio();
                float thisOffHeap = largest.getAllocator().onHeap().ownershipRatio();
                logger.info("Flushing largest {} to free up room. Used total: {}, live: {},
flushing: {}, this: {}",
                            largest.cfs, ratio(usedOnHeap, usedOffHeap), ratio(liveOnHeap,
liveOffHeap),
                            ratio(flushingOnHeap, flushingOffHeap), ratio(thisOnHeap, thisOffHeap));
                largest.cfs.switchMemtableIfCurrent(largest);
            }


 float thisOffHeap = largest.getAllocator().onHeap().ownershipRatio();
should offHeap().ownershipRatio();



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