Hi all, We are using HBASE 0.96 with Hadoop 2.2.0, recently we found there are some SCAN operations last for more than 1 hours, which lead to heavy network traffic, because some data is not stored at local data node and the region is very big, about 100G-500G。
With heavy network traffic, the region server then can not offer service cause the NIC is full. >From DBA view point, I want to know if there is some operation for HBase to limit the large scan or if there is some flow control for SCAN operation and how can we monitor the long SCAN operation。
