Rishir Shroff created HBASE-7408: ------------------------------------ Summary: Make compaction to use pread instead of sequential read Key: HBASE-7408 URL: https://issues.apache.org/jira/browse/HBASE-7408 Project: HBase Issue Type: Improvement Reporter: Rishir Shroff Priority: Minor
As we discovered lately, HFile compactions use sequential reads to fetch blocks. It cause unwanted streaming of data from HDFS to region servers when there is a cache hit. Lets change to use preads to reduce iops on disks. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira