[Oracle Module] Change tablespace metricset collection period

[andresrc]

Problem

• Oracle DBAs typically look at the growth or reduction of their table space and disk space over long periods of time. It's just wasted performance and overkill to pull those statistics every 10 seconds. All DBAs are interested in is answering this is how much space was allocated and out of that space, this is how much has been used up. These numbers don’t change drastically. If there is a problem with the space allocation, all bells and whistles will go off way before anything goes wrong.

Solution

• Give the users the ability to change the collection interval however they want to. And keep the default value as high as 10 minutes or maybe more as a recommendation so that first-time users don’t waste cycles and resources.

User Stories

• As an Oracle DBA Elastic user, I want Elastic to provide default collection intervals of 60 seconds or more and warn users if they change the collection frequency to be less than 60 seconds so that users don’t accidentally impact their databases and witness performance issues as the first impression.