No worries, Anoop. Here is some clarification for this chain. It started initially to figure out how to check whether SCR is effective at the RS or not. I could not find the metric anywhere in ganglia/JMX and didn't find any RegionServer level metric either and so started looking at my DN logs. I saw a lot of "clienttrace" logs which are basically logs for HDFS_READ and HDFS_WRITE ops. I wanted to see if it's a valid assumption that SCR is working if I don't see any clienttrace logs for the RS that is hosted on the same box as the DN.
Hopefully I clarified it. On Fri, Jul 5, 2013 at 12:55 AM, Anoop John <anoop.hb...@gmail.com> wrote: > Agree that right now the HBase handled checksum will work only with SCR. > But it might work without SCR also later (as support come from HDFS).. So > I am not getting the direct relation btw the SCR metric and this one. Am I > missed some thing in the mail loop? Sorry just trying to be clear on this > :) >
