Problem of zombie (#438) and postmaster pid file (#441) is fixed

src/consts.py

@@ -2,6 +2,7 @@
 
 # binary names
 BINARY_NAME__POSTGRES = "postgres"
+BINARY_NAME__PG_CTL = "pg_ctl"
 
 # names for dirs in base_dir
 DATA_DIR = "data"
@@ -44,5 +45,7 @@
 LOGICAL_REPL_MAX_CATCHUP_ATTEMPTS = 60
 
 PG_CTL__STATUS__OK = 0
+
+PG_CTL__STATUS__FAILED = 1
 PG_CTL__STATUS__NODE_IS_STOPPED = 3
 PG_CTL__STATUS__BAD_DATADIR = 4

src/impl/platforms/linux/internal_platform_utils.py

@@ -291,9 +291,13 @@ def _is_file_not_found_exception(e: Exception) -> bool:
         if isinstance(e, FileNotFoundError):
             return True
 
+        if isinstance(e, ProcessLookupError):
+            return True
+
         if isinstance(e, ExecUtilException):
-            if e.exit_code == 2:
+            if e.exit_code == 1:
                 return True
+            return False
 
         return False