Make max tries configurable

src/config.ts

@@ -81,7 +81,8 @@ addDefaults(config, {
         password: "",
         port: 5432,
         max: 10,
-        idleTimeoutMillis: 10000
+        idleTimeoutMillis: 10000,
+        maxTries: 3
     },
     postgresReadOnly: {
         enabled: false,
@@ -92,7 +93,8 @@ addDefaults(config, {
         port: 5432,
         readTimeout: 250,
         max: 10,
-        idleTimeoutMillis: 10000
+        idleTimeoutMillis: 10000,
+        maxTries: 3
     },
     dumpDatabase: {
         enabled: false,

src/databases/Postgres.ts

@@ -33,8 +33,6 @@ export class Postgres implements IDatabase {
     private poolRead: Pool;
     private lastPoolReadFail = 0;
 
-    private maxTries = 3;
-
     constructor(private config: DatabaseConfig) {}
 
     async init(): Promise<void> {
@@ -141,7 +139,8 @@ export class Postgres implements IDatabase {
 
                 Logger.error(`prepare (postgres) try ${tries}: ${err}`);
             }
-        } while (this.isReadQuery(type) && tries < this.maxTries);
+        } while (this.isReadQuery(type) && tries < (lastPool === this.pool
+            ? this.config.postgres.maxTries : this.config.postgresReadOnly.maxTries));
     }
 
     private getPool(type: string, options: QueryOption): Pool {

src/types/config.model.ts

@@ -8,6 +8,7 @@ interface RedisConfig extends redis.RedisClientOptions {
 
 export interface CustomPostgresConfig extends PoolConfig {
     enabled: boolean;
+    maxTries: number;
 }
 
 export interface CustomPostgresReadOnlyConfig extends CustomPostgresConfig {