Merge pull request #82002 from eromanova97/OBSDOCS-1319

OBSDOCS-1319: Update monitoring config map API reference content for …

Author: JoeAldinger

observability/monitoring/config-map-reference-for-the-cluster-monitoring-operator.adoc

@@ -559,7 +559,7 @@ Appears in: link:#userworkloadconfiguration[UserWorkloadConfiguration]
 
 |resources|*v1.ResourceRequirements|Defines resource requests and limits for the Prometheus container.
 
-|retention|string|Defines the duration for which Prometheus retains data. This definition must be specified using the following regular expression pattern: `[0-9]+(ms\|s\|m\|h\|d\|w\|y)` (ms = milliseconds, s= seconds,m = minutes, h = hours, d = days, w = weeks, y = years). The default value is `15d`.
+|retention|string|Defines the duration for which Prometheus retains data. This definition must be specified using the following regular expression pattern: `[0-9]+(ms\|s\|m\|h\|d\|w\|y)` (ms = milliseconds, s= seconds,m = minutes, h = hours, d = days, w = weeks, y = years). The default value is `24h`.
 
 |retentionSize|string|Defines the maximum amount of disk space used by data blocks plus the write-ahead log (WAL). Supported values are `B`, `KB`, `KiB`, `MB`, `MiB`, `GB`, `GiB`, `TB`, `TiB`, `PB`, `PiB`, `EB`, and `EiB`. The default value is `nil`.