fix: update QUERYABLES_CACHE_TTL default value to 21600 seconds (6 hours)

Author: Andrzej Pijanowski

CHANGELOG.md

@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - Environment variable `VALIDATE_QUERYABLES` to enable/disable validation of queryables in search/filter requests. When set to `true`, search requests will be validated against the defined queryables, returning an error for any unsupported fields. Defaults to `false` for backward compatibility.[#532](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/532)
 
-- Environment variable `QUERYABLES_CACHE_TTL` to configure the TTL (in seconds) for caching queryables. Default is `3600` seconds (1 hour) to balance performance and freshness of queryables data. [#532](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/532)
+- Environment variable `QUERYABLES_CACHE_TTL` to configure the TTL (in seconds) for caching queryables. Default is `21600` seconds (6 hours) to balance performance and freshness of queryables data. [#532](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/532)
 
 ### Changed
 

README.md

@@ -370,7 +370,7 @@ You can customize additional settings in your `.env` file:
 | `EXCLUDED_FROM_QUERYABLES` | Comma-separated list of fully qualified field names to exclude from the queryables endpoint and filtering. Use full paths like `properties.auth:schemes,properties.storage:schemes`. Excluded fields and their nested children will not be exposed in queryables. If `VALIDATE_QUERYABLES` is enabled, these fields will also be considered invalid for filtering. | None | Optional |
 | `EXCLUDED_FROM_ITEMS` | Specifies fields to exclude from STAC item responses. Supports comma-separated field names and dot notation for nested fields (e.g., `private_data,properties.confidential,assets.internal`). | `None` | Optional |
 | `VALIDATE_QUERYABLES` | Enable validation of query parameters against the collection's queryables. If set to `true`, the API will reject queries containing fields that are not defined in the collection's queryables. | `false` | Optional |
-| `QUERYABLES_CACHE_TTL` | Time-to-live (in seconds) for the queryables cache. Used when `VALIDATE_QUERYABLES` is enabled. | `3600` | Optional |
+| `QUERYABLES_CACHE_TTL` | Time-to-live (in seconds) for the queryables cache. Used when `VALIDATE_QUERYABLES` is enabled. | `21600` | Optional |
 
 
 > [!NOTE]
@@ -436,7 +436,7 @@ To enable queryables validation, set the following environment variables:
 
 ```bash
 VALIDATE_QUERYABLES=true
-QUERYABLES_CACHE_TTL=3600  # Optional, defaults to 3600 seconds (1 hour)
+QUERYABLES_CACHE_TTL=21600  # Optional, defaults to 21600 seconds (6 hours)
 ```
 
 **Behavior:**

stac_fastapi/core/stac_fastapi/core/queryables.py

@@ -24,7 +24,7 @@ def __init__(self, database_logic: Any):
         self._last_updated: float = 0
         self._lock = asyncio.Lock()
         self.validation_enabled: bool = False
-        self.cache_ttl: int = 3600  # How often to refresh cache (in seconds)
+        self.cache_ttl: int = 21600  # How often to refresh cache (in seconds)
         self.excluded_queryables: Set[str] = set()
         self.reload_settings()
 
@@ -33,7 +33,7 @@ def reload_settings(self):
         self.validation_enabled = (
             os.getenv("VALIDATE_QUERYABLES", "false").lower() == "true"
         )
-        self.cache_ttl = int(os.getenv("QUERYABLES_CACHE_TTL", "3600"))
+        self.cache_ttl = int(os.getenv("QUERYABLES_CACHE_TTL", "21600"))
 
         excluded = os.getenv("EXCLUDED_FROM_QUERYABLES", "")
         self.excluded_queryables = set()

stac_fastapi/sfeos_helpers/stac_fastapi/sfeos_helpers/search_engine/selection/cache_manager.py

@@ -12,7 +12,7 @@
 class IndexCacheManager:
     """Manages caching of index aliases with expiration."""
 
-    def __init__(self, cache_ttl_seconds: int = 3600):
+    def __init__(self, cache_ttl_seconds: int = 21600):
         """Initialize the cache manager.
 
         Args: