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From "Ed Coleman" <>
Subject RE: Accumulo Monitoring Page Improvements/redesign?
Date Tue, 13 May 2014 01:45:33 GMT
To echo what Josh is saying, I keep hoping to prototype something that would include the metrics
library from Coda Hale ( my idea was to pick a component, supplement
with Coda Hale's library and a REST api in parallel with the current facilities to see how
it plays out.

Ed Coleman

Arshak Navruzyan  wrote:

Along these lines curious where and how monitor stores its stats currently.  I imagine some
of it comes from  !METADATA but guessing not all of it does (for example the time series).

If there was a clean way to access the stats there is no shortage of powerful and pretty monitoring

On May 12, 2014 10:07 AM, "Josh Elser" <> wrote:

> Personally, I'm not sold on the ability to integrate with an external 
> tool that will give us adequate functionality as compared to what we 
> presently have with the monitor (someone prove me wrong). It doesn't 
> *have* to be pretty -- the monitor is extremely functional already 
> which is the important part.
> A deployable war would be a big step up, as administrators could 
> deploy the monitor into existing application servers instead of the 
> embedded-jetty hack we currently use.
> Moving towards a monitor REST API (instead of baked into servlets) 
> would also be a big step for external systems to consume Accumulo 
> information and also allow for better testing.
> Regarding the shell in the monitor, I think it's been there since 
> 1.5.0ish
> -- you just need to enable the monitor to run with SSL. There's a 
> script in bin that will generate the 
> keystore and truststore for you, and also print out the configuration 
> to add to accumulo-site.xml.
> On 5/12/14, 10:24 AM, Mike Drob wrote:
>> Al,
>> There's an existing JIRA for packaging the monitor as a war -
>> - so that is a 
>> good place to start.
>> There's also been some discussion about going the other way - instead 
>> of building up the monitor we could tear it down and let somebody 
>> else maintain that code. The benefits are a reduced maintenance cost 
>> for us, especially on something that is not our forte. As a community 
>> we know how to make a good distributed storage system... less so on 
>> how to make a pretty web interface. You can check out
>> for more details 
>> there.
>> Mike
>> On Mon, May 12, 2014 at 9:53 AM, Al Krinker <> wrote:
>>  All,
>>> Christopher and I exchanged some ideas during Accumulo Meetup last 
>>> week about how we can improve Accumulo Monitoring Page... I would 
>>> like to reach out to the community to flesh out some prototype ideas 
>>> and to make sure we are not duplication any ongoing efforts that may 
>>> take place.
>>> How do you feel about making Accumulo Monitoring Page a deployable 
>>> war file? Also, we probably should clean up the current site some 
>>> more (I noticed that some of the titles are not well alligned). In 
>>> addition, I am thinking about adding Spring Security to control the 
>>> access to certain pages.
>>> Another idea, would be to provide shell capabilities via web page... 
>>> For example, a user will be able to select a table from drop down of 
>>> all available tables, and then then do a simple scan to see the data.
>>> Neither Christopher or I use Cloudera, so we are not too familiar 
>>> with it or its features... and I've heard that Cloudera Manager 
>>> might already provide some of these features? Anyone can confirm it? 
>>> Even if it is true, I would still want to add as much capabilities 
>>> to Accumulo without having to use another tool.
>>> Also, Christopher mentioned that Billie Rinaldi (Hortonworks) did 
>>> add some shell interface to the web page. So hopefully, Billie will 
>>> be able to pitch in with his ideas.
>>> Thoughts? Comments?
>>> Thanks,
>>> Al Krinker

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