Sreejith Ramakrishnan 2013-07-17, 20:44
Colin McCabe 2013-07-17, 21:25
Folks over at HBase would be interested in helping out.
What does a mentor have to do? I poked around the icfoss link but didn't
see list of duties (I've been know to be certified blind on occasion).
I am not up on the malleability of hdfs RPC; is it just a matter of adding
the trace info to a pb header record or would it require more (Sanjay was
saying something recently off-list that trace id is imminent -- but I've
not done the digging)?
On Wed, Jul 17, 2013 at 1:44 PM, Sreejith Ramakrishnan <
[EMAIL PROTECTED]> wrote:
> I was originally researching options to work on ACCUMULO-1197. Basically,
> it was a bid to pass trace functionality through the DFSClient. I discussed
> with the guys over there on implementing a Google Dapper-style trace with
> HTrace. The guys at HBase are also trying to achieve the same HTrace
> integration [HBASE-6449]
> But, that meant adding stuff to the RPC in HDFS. For a start, we've to add
> a 64-bit span-id to every RPC with tracing enabled. There's some more in
> the original Dapper paper and HTrace documentation.
> I was told by the Accumulo people to talk with and seek help from the
> experts at HDFS. I'm open to suggestions.
> Additionally, I'm participating in a Joint Mentoring Programme by Apache
> which is quite similar to GSoC. Luciano Resende (Community Development,
> Apache) is incharge of the programme. I'll attach a link. The last date is
> 19th July. So, I'm pretty tensed without any mentors :(
>  https://issues.apache.org/jira/browse/ACCUMULO-1197
>  https://issues.apache.org/jira/browse/HDFS-4680
>  https://github.com/cloudera/htrace
>  http://community.apache.org/mentoringprogramme-icfoss-pilot.html
>  https://issues.apache.org/jira/browse/HBASE-6449
> Thank you,
> Sreejith R
Todd Lipcon 2013-07-18, 00:23
Suresh Srinivas 2013-07-18, 00:29
Sreejith Ramakrishnan 2013-07-18, 09:12