logging for debug (why is r2d2 breaking?)

crates/service/job/inference_job/src/main.rs

@@ -139,13 +139,15 @@ async fn main() -> AnyhowResult<()> {
         "MYSQL_URL",
         DEFAULT_MYSQL_CONNECTION_STRING);
 
-  info!("Connecting to database...");
+  info!("Connecting to MySQL database...");
 
   let mysql_pool = MySqlPoolOptions::new()
       .max_connections(2)
       .connect(&db_connection_string)
       .await?;
 
+  info!("Connected to MySQL.");
+
   let common_env = CommonEnv::read_from_env()?;
 
   let sidecar_max_synthesizer_models = easyenv::get_env_num(
@@ -191,8 +193,12 @@ async fn main() -> AnyhowResult<()> {
 
   let maybe_keepalive_redis_pool =
       match easyenv::get_env_string_optional("REDIS_FOR_KEEPALIVE_URL") {
-        None => None,
+        None => {
+          warn!("Redis for job keepalive is DISABLED! This might break some jobs.");
+          None
+        },
         Some(redis_url) => {
+          info!("Connecting to Redis for keepalive signals... {}", redis_url);
           let redis_manager = RedisConnectionManager::new(redis_url)?;
           let redis_pool = r2d2::Pool::builder().build(redis_manager)?;
           Some(redis_pool)

crates/service/job/inference_job/src/util/instrumentation.rs

@@ -1,5 +1,5 @@
 use std::time::Duration;
-use log::warn;
+use log::{info, warn};
 use opentelemetry::KeyValue;
 use opentelemetry::metrics::{Counter, Histogram, Meter, Unit};
 use opentelemetry_otlp::WithExportConfig;
@@ -19,6 +19,8 @@ pub struct JobInstrumentLabels {
 pub fn init_otel_metrics_pipeline(
     job_instrument_labels: JobInstrumentLabels,
 ) -> Result<(), opentelemetry::metrics::MetricsError>  {
+    info!("Setting up otel metrics pipeline...");
+
     let provider = opentelemetry_otlp::new_pipeline()
         .metrics(opentelemetry_sdk::runtime::Tokio)
         // TODO: 1. read host from env 2. Single pod of otel-collector is probably not good enough, run daemonset?