public synchronized void addMetaWALSplit(long time, long size) {
    source.updateMetaWALSplitTime(time);
    source.updateMetaWALSplitSize(size);
  }
Record a single instance of a split
@param time time that the split took
@param size length of original WALs that were split
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterFileSystem.java