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Anoop Sam John commented on HBASE-6798: --------------------------------------- Need to check more in HDFS area.. Atleast we can document this then? In book I am not able to see any thing related to hbase handled checksum checks. > HDFS always read checksum form meta file > ---------------------------------------- > > Key: HBASE-6798 > URL: https://issues.apache.org/jira/browse/HBASE-6798 > Project: HBase > Issue Type: Bug > Components: performance > Affects Versions: 0.94.0, 0.94.1 > Reporter: LiuLei > Priority: Blocker > > I use hbase0.941 and hadoop-0.20.2-cdh3u5 version. > The HBase support checksums in HBase block cache in HBASE-5074 jira. > The HBase support checksums for decrease the iops of HDFS, so that HDFS > dont't need to read the checksum from meta file of block file. > But in hadoop-0.20.2-cdh3u5 version, BlockSender still read the metadata file > even if the > hbase.regionserver.checksum.verify property is ture. -- 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