Github user hyunsik commented on a diff in the pull request:

    https://github.com/apache/tajo/pull/910#discussion_r50501505
  
    --- Diff: 
tajo-storage/tajo-storage-hbase/src/main/java/org/apache/tajo/storage/hbase/HBaseTablespace.java
 ---
    @@ -101,8 +104,19 @@ public Configuration getHbaseConf() {
       }
     
       @Override
    -  public long getTableVolume(URI uri, Optional<EvalNode> filter) throws 
UnsupportedException {
    -    throw new UnsupportedException();
    +  public long getTableVolume(TableDesc table, Optional<EvalNode> filter) {
    +    long totalVolume;
    +    try {
    +      totalVolume = getRawSplits("", table, filter.orElse(null)).stream()
    +          .map(f -> f.getLength())
    +          .filter(size -> size > 0) // eliminate unknown sizes (-1)
    +          .reduce(0L, (sum, size) -> sum + size);
    --- End diff --
    
    Thanks. I'll fix it.


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