fix(ao): separate evaluation interval from TTL cache

This will allow operators to set how long they want the serve records out of the cahce. Doing so will prevent records from deleted if there are temporary evaluation issues so names will still resolve Until the next evalution period.

src/config.ts

@@ -25,6 +25,10 @@ export const EVALUATION_INTERVAL_MS = +env.varOrDefault(
   'EVALUATION_INTERVAL_MS',
   `${1000 * 60 * 15}`, // 15 mins by default
 );
+export const RESOLVER_CACHE_TTL_MS = +env.varOrDefault(
+  'RESOLVER_CACHE_TTL_MS',
+  `${1000 * 60 * 60}`, // 1 hour by default
+);
 export const RUN_RESOLVER = env.varOrDefault('RUN_RESOLVER', 'true') === 'true';
 export const ENABLE_OPENAPI_VALIDATION =
   env.varOrDefault('ENABLE_OPENAPI_VALIDATION', 'true') === 'true';

src/system.ts

@@ -39,7 +39,7 @@ export const contract: AoIORead = IO.init({
 // TODO: this could be done using any KV store - or in memory. For now, we are using LMDB for persistence.
 export const cache = new LmdbKVStore({
   dbPath: config.ARNS_CACHE_PATH,
-  ttlSeconds: config.EVALUATION_INTERVAL_MS / 1000,
+  ttlSeconds: config.RESOLVER_CACHE_TTL_MS / 1000,
 });
 
 const parallelLimit = pLimit(100);