hi ,
I used Apache HAWQ to write data on HDFS-2.7.3,and met a strange problem. I had totally wirte 300MB data,commit 100 times,each time commit 3MB.But each node "block pool used" increased by more than 30GB,"block pool used" in namenode increased 100GB.But when I use "hadoop fs -du -h /",the space only grow 300MB.And there's no change with block numbers. If i continually commit small data, "block pool used" will become greater then 100% and returned no space left. After about several minutes,the "block pool used" will gradually decrease to the normal. I didn't see any logs on namenode and datanode to reclaim the "block pool used". Anyone could explain why it happend and how Could I solve this problem.Many thanks! Tao Jin
