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From Supun Kamburugamuva <>
Subject Re: GSOC: Monitor Improvements
Date Sun, 21 Apr 2013 18:15:45 GMT
Hi Josh,

Thanks for the suggestions. I'll incorporate these to the proposal.

Another area I would like to work is on JMX. There is a Jira that says to
replace the Monitor calls from Thrift to JMX (Accumulo 694). Do you think
this is a good addition to the Monitor?


On Sun, Apr 21, 2013 at 1:45 PM, Josh Elser <> wrote:

> Supun,
> Looks good! Can I make some suggestions/comments?
> For: "Per table plots: ACCUMULO-594", I'd also like to see minor
> compactions, major compactions, index cache hit rate, and data cache hit
> rate per table (same graphs that are displayed system-wide when you visit
> http://${MONITOR_HOST}:50095/.
> For "Per tablet [server] plots", it would be neat if you could also
> extract some general statistics like top N least performing, top N highest
> performing, etc. tablet servers. Ideally, this could correlate with servers
> that may be having problems :).
> Do you see these proposed changes as being sufficient for 3-4 months of
> 40hrs/week work? If you plan to really dig into these changes (perhaps
> reworking components of the monitor itself), I could perhaps see this. Do
> you have any ideas for more lofty goals that you could pursue as well? I
> don't want you/us to get one month into things and see you complete
> everything we initially planned to accomplish :)
> - Josh
> On 04/21/2013 10:37 AM, Supun Kamburugamuva wrote:
>> Hi all,
>> I would like to start writing the proposal for the GSoc. I've put together
>> some initial high level goals of the project. Please let me know what I
>> can
>> improve.
>> Per table plots: Accumulo 594
>> ---------------------
>> The goal of this is to display plots that explains the various activtities
>> that happens per table. When we go to the tables page of the monitor and
>> go
>> to a specific table it displays some information in a table format. We can
>> argument this information by showing graphs for
>> 1. Ingest entries
>> 2. Ingest data size
>> 3. Scan entries
>> 4. Scan data size
>> Per tablet plots
>> ----------------------
>> Same as in the table plots we can display information regarding tablet
>> servers in the tablet server page. The plots will display the same
>> information as table plots considering data per tablet server.
>> Trace Visualization: Accumulo 1198
>> ----------------------------
>> Since we are displaying graphs about each tablet and each table we can add
>> major and minor compaction graph to each table and each tablet.
>> Or other option is to display this in a single graph in overview page with
>> different graph lines for different tables and tablets.
>> Server type information : Accumulo 807
>> ------------------------------**---
>> For displaying this informations we can add a new page and display the
>> information as a table. The table should specify the network address of
>> the
>> server, server type, weather it is active or in-active etc.
>> Thanks,
>> Supun...

Supun Kamburugamuva
Member, Apache Software Foundation;
E-mail:;  Mobile: +1 812 369 6762

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