diff --git a/src/hpfs/hpfs.cpp b/src/hpfs/hpfs.cpp
index c78d8cad..dd9c568e 100644
--- a/src/hpfs/hpfs.cpp
+++ b/src/hpfs/hpfs.cpp
@@ -6,14 +6,18 @@
 
 namespace hpfs
 {
-    constexpr const char *HPFS_TRACE_ARG = "trace=none";
+    constexpr const char *HPFS_TRACE_ARG_ERROR = "trace=error";
+    constexpr const char *HPFS_TRACE_ARG_DEBUG = "trace=debug";
     constexpr uint16_t INIT_CHECK_INTERVAL = 20;
 
     pid_t merge_pid = 0;
     bool init_success = false;
+    const char *active_hpfs_trace_arg;
 
     int init()
     {
+        active_hpfs_trace_arg = (conf::cfg.loglevel == "debug" ? HPFS_TRACE_ARG_DEBUG : HPFS_TRACE_ARG_ERROR);
+
         LOG_INFO << "Starting hpfs merge process...";
         if (start_merge_process() == -1)
             return -1;
@@ -59,7 +63,7 @@ namespace hpfs
                 conf::ctx.hpfs_exe_path.data(),
                 (char *)"merge",
                 conf::ctx.state_dir.data(),
-                (char *)HPFS_TRACE_ARG,
+                (char *)active_hpfs_trace_arg,
                 NULL};
 
             const int ret = execv(execv_args[0], execv_args);
@@ -157,7 +161,7 @@ namespace hpfs
                 conf::ctx.state_dir.data(),
                 mount_dir.data(),
                 (char *)(hash_map_enabled ? "hmap=true" : "hmap=false"),
-                (char *)HPFS_TRACE_ARG,
+                (char *)active_hpfs_trace_arg,
                 NULL};
 
             const int ret = execv(execv_args[0], execv_args);
diff --git a/src/hplog.cpp b/src/hplog.cpp
index 9bf8ff36..369204ec 100644
--- a/src/hplog.cpp
+++ b/src/hplog.cpp
@@ -12,78 +12,79 @@ namespace keywords = boost::log::keywords;
 namespace hplog
 {
 
-/**
+    /**
  * Stream operator overload for converting integer severity value to text.
  */
-std::ostream &operator<<(std::ostream &os, LOG_SEVERITY level)
-{
-    static std::string_view loglevels[] = {"dbg", "inf", "wrn", "err"};
-    os << loglevels[level];
-    return os;
-}
-
-// Severity attribute value tag type
-struct severity_tag;
-
-void init()
-{
-    // Set log severity level based on contract config.
-    LOG_SEVERITY severity = LOG_SEVERITY::WARN;
-    if (conf::cfg.loglevel == "debug")
-        severity = LOG_SEVERITY::DEBUG;
-    else if (conf::cfg.loglevel == "info")
-        severity = LOG_SEVERITY::INFO;
-    else if (conf::cfg.loglevel == "warn")
-        severity = LOG_SEVERITY::WARN;
-    else if (conf::cfg.loglevel == "error")
-        severity = LOG_SEVERITY::ERROR;
-
-    // Log line format expression.
-    const auto format_expr = (expr::stream
-                        << expr::format_date_time<boost::posix_time::ptime>("TimeStamp", "%Y%m%d %H:%M:%S ")
-                        // << ":" << expr::attr<boost::log::attributes::current_thread_id::value_type>("ThreadID")
-                        // << "[" << expr::attr<std::string>("Channel") << "] " 
-                        << "[" << expr::attr<LOG_SEVERITY, severity_tag>("Severity") << "] " 
-                        << expr::smessage);
-
-    if (conf::cfg.loggers.count("console") == 1)
+    std::ostream &operator<<(std::ostream &os, LOG_SEVERITY level)
     {
-        logging::add_console_log(
-            std::clog,
-            keywords::filter = (a_severity >= severity),
-            keywords::format = format_expr);
+        static std::string_view loglevels[] = {"dbg", "inf", "wrn", "err"};
+        os << loglevels[level];
+        return os;
     }
 
-    if (conf::cfg.loggers.count("file") == 1)
-    {
-        logging::add_file_log(
-            keywords::target = conf::ctx.log_dir,                   // Log file directory.
-            keywords::file_name = conf::ctx.log_dir + "/hp_%N.log", // File name pattern "hp_1.log".
-            keywords::rotation_size = 10 * 1024 * 1024,            // Rotate files every 10 MB.
-            keywords::max_size = 500 * 1024 * 1024,                // Do not exceed 500 MB total logs.
-            keywords::filter = (a_severity >= severity),
-            keywords::format = format_expr,
+    // Severity attribute value tag type
+    struct severity_tag;
 
-            // This will make every new launch of Hot Pocket to start a new log file number.
-            // It will scan existing log files matching the pattern and find the next number.
-            keywords::scan_method = sinks::file::scan_matching
+    void init()
+    {
+        // Set log severity level based on contract config.
+        LOG_SEVERITY severity = LOG_SEVERITY::WARN;
+        if (conf::cfg.loglevel == "debug")
+            severity = LOG_SEVERITY::DEBUG;
+        else if (conf::cfg.loglevel == "info")
+            severity = LOG_SEVERITY::INFO;
+        else if (conf::cfg.loglevel == "warn")
+            severity = LOG_SEVERITY::WARN;
+        else if (conf::cfg.loglevel == "error")
+            severity = LOG_SEVERITY::ERROR;
+
+        // Log line format expression.
+        const auto format_expr = (expr::stream
+                                  << expr::format_date_time<boost::posix_time::ptime>("TimeStamp", "%Y%m%d %H:%M:%S ")
+                                  // << ":" << expr::attr<boost::log::attributes::current_thread_id::value_type>("ThreadID")
+                                  // << "[" << expr::attr<std::string>("Channel") << "] "
+                                  << "[" << expr::attr<LOG_SEVERITY, severity_tag>("Severity") << "][hp] "
+                                  << expr::smessage);
+
+        if (conf::cfg.loggers.count("console") == 1)
+        {
+            logging::add_console_log(
+                std::clog,
+                keywords::filter = (a_severity >= severity),
+                keywords::format = format_expr);
+        }
+
+        if (conf::cfg.loggers.count("file") == 1)
+        {
+            logging::add_file_log(
+                keywords::target = conf::ctx.log_dir,                   // Log file directory.
+                keywords::file_name = conf::ctx.log_dir + "/hp_%N.log", // File name pattern "hp_1.log".
+                keywords::rotation_size = 10 * 1024 * 1024,             // Rotate files every 10 MB.
+                keywords::max_size = 500 * 1024 * 1024,                 // Do not exceed 500 MB total logs.
+                keywords::filter = (a_severity >= severity),
+                keywords::format = format_expr,
+
+                // This will make every new launch of Hot Pocket to start a new log file number.
+                // It will scan existing log files matching the pattern and find the next number.
+                keywords::scan_method = sinks::file::scan_matching
 
 #ifndef NDEBUG
-            // We enable auto_flush to immediately get the logs onto the file. Otherwise it takes time
-            // for buffered logs to reach the file. This impacts performance. So enabled only in debug build.
-            , keywords::auto_flush = true
+                // We enable auto_flush to immediately get the logs onto the file. Otherwise it takes time
+                // for buffered logs to reach the file. This impacts performance. So enabled only in debug build.
+                ,
+                keywords::auto_flush = true
 #endif
-        );
+            );
+        }
+
+        // Add Boost Log built-in fields for log entries.
+        logging::add_common_attributes();
     }
 
-    // Add Boost Log built-in fields for log entries.
-    logging::add_common_attributes();
-}
-
-void deinit()
-{
-    // This will make all buffered logs to be flushed to the sink.
-    logging::core::get()->remove_all_sinks();
-}
+    void deinit()
+    {
+        // This will make all buffered logs to be flushed to the sink.
+        logging::core::get()->remove_all_sinks();
+    }
 
 } // namespace hplog
\ No newline at end of file
diff --git a/test/bin/hpfs b/test/bin/hpfs
index 02e34e96..26d07d5c 100755
Binary files a/test/bin/hpfs and b/test/bin/hpfs differ