Change max query length to 32 days

To allow for comparision over months of 31d

Signed-off-by: Goutham Veeramachaneni <[email protected]>

Author: gouthamve

CHANGELOG.md

@@ -5,6 +5,7 @@
 * [CHANGE] The project is now licensed with Apache-2.0 license. #169
 * [CHANGE] Add overrides config to tsdb store-gateway. #167
 * [CHANGE] Ingesters now default to running as `StatefulSet` with WAL enabled. It is controlled by the config `$._config.ingester_deployment_without_wal` which is `false` by default. Setting the config to `true` will yeild the old behaviour (stateless `Deployment` without WAL enabled). #72
+* [CHANGE] We now allow queries that are 32 days long. For example, rate(metric[32d]). Before it was 31d. #173
 
 ## 1.3.0 / 2020-08-21
 

cortex/config.libsonnet

@@ -169,10 +169,11 @@
       // Limit the size of the rows we read from the index.
       'store.cardinality-limit': 1e6,
 
-      // Don't allow individual queries of longer than 31days.  Due to day query
-      // splitting in the frontend, the reality is this only limits rate(foo[31d])
-      // type queries.
-      'store.max-query-length': '744h',
+      // Don't allow individual queries of longer than 32days.  Due to day query
+      // splitting in the frontend, the reality is this only limits rate(foo[32d])
+      // type queries. 32 days to allow for comparision over the last month (31d) and
+      // then some.
+      'store.max-query-length': '768h',
     } + (
       if $._config.storage_engine == 'chunks' then {
         // Don't query ingesters for older queries.