Implement bucket-related statistics

byzhang / terrastore

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Implement bucket-related statistics #141

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago

Other than the already implemented cluster statistics, it would be very useful 
to have some bucket-related statistics.
Here are a few useful data I'd like to see (per bucket):
* Number of documents locally hosted.
* Total number of documents.
* Number of writes.
* Number of reads.

Original issue reported on code.google.com by sergio.b...@gmail.com on 15 Dec 2010 at 2:44

GoogleCodeExporter commented 9 years ago

Original comment by sergio.b...@gmail.com on 16 Dec 2010 at 9:43

Changed state: Accepted

GoogleCodeExporter commented 9 years ago

We should give some thought to what more to expose, especially for 
metrics/monitoring. 
I'd think that operations staff wouldn't mind being able to poll for data for 
Cacti-graphing (or for other tools).
So some sort of breakdown with averages over time, reads/writes per minute(or 
other time intervals) would be a nice-to-have.

Original comment by johansso...@gmail.com on 16 Dec 2010 at 10:42

GoogleCodeExporter commented 9 years ago

It's a good idea add metrics data to the rest interface so that, for example, 
TerrastoreConsole will be able to show this real time info.

Original comment by you...@gmail.com on 16 Dec 2010 at 1:23

GoogleCodeExporter commented 9 years ago

Time-based metrics are usually computed by such a tools by simply extracting 
and combining data at different points in time: so I think we shouldn't provide 
time-based data by ourselves.

Original comment by sergio.b...@gmail.com on 16 Dec 2010 at 3:08

GoogleCodeExporter commented 9 years ago

Right, if that is the case then we don't have to do it specifically.

I guess my main underlying point is that the nice-to-have is that the 
statistics we do provide accomodate monitoring tools in a good way, in addition 
to custom/manual interpretation & the Terrastore Console

Original comment by johansso...@gmail.com on 16 Dec 2010 at 3:13

GoogleCodeExporter commented 9 years ago

Absolutey agreed.

Original comment by sergio.b...@gmail.com on 16 Dec 2010 at 3:15

GoogleCodeExporter commented 9 years ago

Sergio, I think it should be a Terrastore behavior, I cannot think how do it 
otherwise in Terrastore scenario without compromising realtime aspect.
In Camel, for example, there're some useful stats accessible by jmx, as message 
flushed/mins, max process time ecc..
I think these stats are calculated in real time by Camel, maybe I didn't 
understand what you mean.

Original comment by you...@gmail.com on 16 Dec 2010 at 4:12