Fix typos in comments (#7816)

Author: cwhitak3r

sky/utils/auth_utils.py

@@ -17,7 +17,7 @@
 # We intentionally not have the ssh key pair to be stored in
 # ~/.sky/api_server/clients, i.e. sky.server.common.API_SERVER_CLIENT_DIR,
 # because ssh key pair need to persist across API server restarts, while
-# the former dir is empheral.
+# the former dir is ephemeral.
 _SSH_KEY_PATH_PREFIX = '~/.sky/clients/{user_hash}/ssh'
 
 

sky/utils/common.py

@@ -31,7 +31,7 @@
 def refresh_server_id() -> None:
     """Refresh the server id.
 
-    This function is used to ensure the server id is read from the authorative
+    This function is used to ensure the server id is read from the authoritative
     source.
     """
     global SERVER_ID

sky/utils/common_utils.py

@@ -1115,7 +1115,7 @@ def release_memory():
         gc.collect()
         if sys.platform.startswith('linux'):
             # Will fail on musl (alpine), but at least it works on our
-            # offical docker images.
+            # official docker images.
             libc = ctypes.CDLL('libc.so.6')
             return libc.malloc_trim(0)
         return 0

sky/utils/db/db_utils.py

@@ -185,7 +185,7 @@ def add_column_to_table_sqlalchemy(
             pass
         else:
             raise
-    #postgressql
+    #postgresql
     except sqlalchemy_exc.ProgrammingError as e:
         if 'already exists' in str(e):
             pass

sky/utils/locks.py

@@ -274,7 +274,7 @@ def force_unlock(self) -> None:
             cursor.execute('SELECT pg_advisory_unlock(%s)', (self._lock_key,))
             result = cursor.fetchone()[0]
             if result:
-                # The lock is held by current routine and unlock suceed
+                # The lock is held by current routine and unlock succeed
                 self._connection.commit()
                 self._acquired = False
                 return