increase connection pool to 4

Author: Jesus Guzman, Jr

java/src/main/resources/application.properties

@@ -10,8 +10,8 @@ spring.lifecycle.timeout-per-shutdown-phase=3s
 
 # database
 spring.datasource.url=${JAVA_RUST_JDBC}
-spring.datasource.hikari.maximumPoolSize=2
-spring.datasource.hikari.minimumIdle=2
+spring.datasource.hikari.maximumPoolSize=4
+spring.datasource.hikari.minimumIdle=4
 spring.datasource.hikari.maxLifetime=600
 spring.datasource.hikari.connectionTimeout=5000
 spring.datasource.data-source-class-name=org.postgresql.ds.PGSimpleDataSource

rust/config.ron

@@ -10,8 +10,8 @@
 
     // database
     postgres_uri_env_var_name: "JAVA_RUST_POSTGRES_URI",
-    postgres_max_pool_size: 2,
-    postgres_min_pool_size: 2,
+    postgres_max_pool_size: 4,
+    postgres_min_pool_size: 4,
     postgres_max_life_time_minutes: 10,
     postgres_timeout_sec: 5,