Reads a Couchbase's bucket metadata and generates a report with statistics about stored items. The keys are grouped using a regex and for each group calculates:

• count
• average seconds left for expiration
• stardard deviation of seconds left for expiration

Expired items are discriminated because couchbase removes expired items at maintenance intervals.

1. Add a view in the bucket with the following code:
   • Go to Couchbase Console (Web UI) > Views > Create Development View
   • Enter a Design Document Name and View Name
   • Enter the following code:

   function (doc, meta) {
   	emit(meta.id, meta);
   }

   • Save
2. Add config section

   <configSections>
   	<section name="couchbaseItemsStats" type="CouchbaseItemsStats.ConfigSection, CouchbaseItemsStats" />
   </configSections>
   
   <couchbaseItemsStats
       viewDesignName="dev_Keys"
       viewName="Metadata"
       keyPrefixRegex="^(CacheContext_)?[^_]+" />

   • viewDesignName: Design document/view name to consume.
   • viewName: View name to consume.
   • keyPrefixRegex: A regex used to extract the prefix from each key. It's used in grouping function.
3. Obtain the stats:

   var couchbaseClient = new CouchbaseClient();
   var client = new StatsClient(couchbaseClient);
   var stats = client.GetStats();

1. Edit settings in config file
   • <couchbase>: Bucket connection.
   • <couchbaseItemsStats>: Lib config (see previous section).
   • reportFormat: Format used to store in the report. Only json is suppported by now.
   • reportFilePath: File path used to store the report.
2. Run the .exe and the report file will be generated