diff --git a/.vscode/launch.json b/.vscode/launch.json
index d055f20..419be48 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -32,9 +32,9 @@
       "program": "${workspaceFolder}/target/debug/judger",
       "args": [
         "judge",
-        "--problem-slug", "hello_world",
+        "--problem-slug", "hello-world",
         "--language", "cpp",
-        "--src-path", "${workspaceFolder}/judger/workdirs/development/problem-package/hello_world/ans.cpp",
+        "--src-path", "${workspaceFolder}/judger/workdirs/development/problem-package/hello-world/ans.cpp",
       ],
       "stopAtEntry": false,
       "cwd": "${workspaceFolder}/judger/workdirs/development",
diff --git a/judge-core/src/compiler.rs b/judge-core/src/compiler.rs
index 4489e9a..ebfdf1c 100644
--- a/judge-core/src/compiler.rs
+++ b/judge-core/src/compiler.rs
@@ -170,7 +170,7 @@ impl Compiler {
             .output()?;
         if output.status.success() {
             let compile_output = String::from_utf8_lossy(&output.stdout).to_string();
-            log::info!("Compile output: {}", compile_output);
+            log::debug!("Compile output: {}", compile_output);
             Ok(compile_output)
         } else {
             let error_output = String::from_utf8_lossy(&output.stderr).to_string();
diff --git a/judger/src/handler/state.rs b/judger/src/handler/state.rs
index 8287192..1506628 100644
--- a/judger/src/handler/state.rs
+++ b/judger/src/handler/state.rs
@@ -19,7 +19,7 @@ pub fn set_busy() -> anyhow::Result<()> {
     let mut state = STATE
         .try_write()
         .map_err(|e| anyhow::anyhow!("Failed to lock state: {:?}", e))?;
-    log::info!("State: {:?}", *state);
+    log::info!("Current State: {:?}", *state);
     if *state == State::Busy {
         anyhow::bail!("Judge server is busy")
     }
diff --git a/judger/src/main.rs b/judger/src/main.rs
index c6db332..cb10836 100644
--- a/judger/src/main.rs
+++ b/judger/src/main.rs
@@ -142,6 +142,7 @@ async fn judge(
 
     let mut verdict = JudgeVerdict::Accepted;
     for idx in 0..judge.testdata_configs.len() {
+        log::debug!("Judge {}, Testcase {}!", problem_slug, idx);
         let judge_config = JudgeConfig {
             test_data: judge.testdata_configs[idx].clone(),
             program: judge.program_config.clone(),
diff --git a/judger/src/option.rs b/judger/src/option.rs
index 9231141..c65c342 100644
--- a/judger/src/option.rs
+++ b/judger/src/option.rs
@@ -1,5 +1,7 @@
 use std::path::PathBuf;
 
+use chrono::Local;
+use std::io::Write;
 use structopt::StructOpt;
 
 #[derive(StructOpt, Debug, Clone)]
@@ -77,5 +79,19 @@ pub fn load_option() -> JudgerOpt {
 }
 
 fn setup_logger() {
-    env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("debug")).init();
+    let env = env_logger::Env::default().default_filter_or("debug");
+    env_logger::Builder::from_env(env)
+        .format(|buf, record| {
+            writeln!(
+                buf,
+                "{} {:5} [{}:{}] {}",
+                Local::now().format("%Y-%m-%d %H:%M:%S"),
+                record.level(),
+                record.file().unwrap(),
+                // record.module_path().unwrap_or("<unnamed>"),
+                record.line().unwrap(),
+                &record.args()
+            )
+        })
+        .init();
 }
diff --git a/judger/src/worker/mod.rs b/judger/src/worker/mod.rs
index 099310c..772bdcf 100644
--- a/judger/src/worker/mod.rs
+++ b/judger/src/worker/mod.rs
@@ -101,6 +101,12 @@ impl JudgeWorker {
 
                     let mut verdict = JudgeVerdict::Accepted;
                     for idx in 0..judge.testdata_configs.len() {
+                        log::debug!(
+                            "Judge {}, {}, Testcase {}!",
+                            task.redis_stream_id,
+                            task.problem_slug,
+                            idx
+                        );
                         let judge_config = JudgeConfig {
                             test_data: judge.testdata_configs[idx].clone(),
                             program: judge.program_config.clone(),
@@ -188,7 +194,7 @@ impl JudgeWorker {
             src_language: language,
             src_path: runtime_path.clone().join(&src_file_name),
         })?;
-        log::debug!("Builder created: {:?}", builder);
+        log::info!("Builder created success: {:?}", builder);
         Ok(builder)
     }