[ https://issues.apache.org/jira/browse/HADOOP-15507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiao Chen updated HADOOP-15507: ------------------------------- Target Version/s: 3.2.0 > Add MapReduce counters about EC bytes read > ------------------------------------------ > > Key: HADOOP-15507 > URL: https://issues.apache.org/jira/browse/HADOOP-15507 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Xiao Chen > Assignee: Xiao Chen > Priority: Major > > HDFS has added Erasure Coding support in HDFS-7285. There are HDFS level > [ReadStatistics|https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/ReadStatistics.java] > so from DFSClient we can know how much reads are EC/replication. > In order for users to have a better view of how much of their workload is > impacted by EC, we can expose EC read bytes to File System Counters, and to > MapReduce's job counters. This way, end users can tell from MR jobs directly. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org