Yun Zhao created HBASE-19226: -------------------------------- Summary: Limit the reduce tasks number of incremental load Key: HBASE-19226 URL: https://issues.apache.org/jira/browse/HBASE-19226 Project: HBase Issue Type: Improvement Reporter: Yun Zhao Priority: Minor
When using MapReduce job to perform an incremental load into a table,the number of reduce tasks is the current number of regions. If there are too many regions, will lead to network+disk I/O is too large, affecting the real-time request. Need to use a configuration to set a number or ratio? Limit running reduce tasks since [https://issues.apache.org/jira/browse/MAPREDUCE-5583], the old version can only be set reduce number. -- This message was sent by Atlassian JIRA (v6.4.14#64029)