private void logStats() {
        if (!LOG.isDebugEnabled()) return;
        long created = chunkCount.get();
        long reused = reusedChunkCount.sum();
        long total = created + reused;
        LOG.debug(
          "{} stats (chunk size={}): current pool size={}, created chunk count={}, "
            + "reused chunk count={}, reuseRatio={}",
          label, chunkSize, reclaimedChunks.size(), created, reused,
          (total == 0 ? "0" : StringUtils.formatPercent((float) reused / (float) total, 2)));
      }
Add the chunks to the pool, when the pool achieves the max size, it will skip the remaining
chunks
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ChunkCreator.java