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Lei (Eddy) Xu commented on HDFS-8198: ------------------------------------- >From our experience, the codec performance is negligible on the IO path, >comparing to network and disks overhead. We dont have existing metrics of the time spent on RS encoding / decoding, as these happen on client side most of the time, so it is not convenient to expose that via JMX. If it is feasible to your environment, you can checkout {{RawErasureEncoder / Decoder}} and add some measurements there, re-compile it and replace JARs in your environment for today. [~xiaochen] is also looking into exposing these client-side metrics, I believe him can give a better answer here. > Erasure Coding: system test of TeraSort > --------------------------------------- > > Key: HDFS-8198 > URL: https://issues.apache.org/jira/browse/HDFS-8198 > Project: Hadoop HDFS > Issue Type: Sub-task > Affects Versions: HDFS-7285 > Reporter: Kai Sasaki > Attachments: ec.out, replication.out > > > Functional system test of TeraSort on EC files. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org