Enable query stats on frontend by default (#41)

Signed-off-by: Friedrich Gonzalez <friedrichg@gmail.com>

Author: friedrichg

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## master / unreleased
 * [CHANGE] Use cortex v1.16.0
+* [ENHANCEMENT] Enable frontend query stats by default
 
 ## 1.15.3 / 2023-11-24
 * [CHANGE] Add default instance max series for ingesters

cortex/query-frontend.libsonnet

@@ -7,9 +7,12 @@
     {
       target: 'query-frontend',
 
-      // Need log.level=debug so all queries are logged, needed for analyse.py.
+      // Need log.level=debug to see trace id for queries
       'log.level': 'debug',
 
+      // a message with some statistics is logged for every query.
+      'frontend.query-stats-enabled': true,
+
       // Increase HTTP server response write timeout, as we were seeing some
       // queries that return a lot of data timeing out.
       'server.http-write-timeout': '1m',