remove JINJA2_CACHE (#12155)

src/sonic-config-engine/redis_bcc.py

@@ -1,29 +0,0 @@
-import jinja2
-
-from base64 import b64encode, b64decode
-
-class RedisBytecodeCache(jinja2.BytecodeCache):
-    """ A bytecode cache for jinja2 template that stores bytecode in Redis """
-
-    REDIS_HASH = 'JINJA2_CACHE'
-
-    def __init__(self, client):
-        self._client = client
-        try:
-            self._client.connect(self._client.LOGLEVEL_DB, retry_on=False)
-        except Exception:
-            self._client = None
-
-    def load_bytecode(self, bucket):
-        if self._client is None:
-            return
-        code = self._client.get(self._client.LOGLEVEL_DB, self.REDIS_HASH, bucket.key)
-        if code is not None:
-            bucket.bytecode_from_string(b64decode(code.encode()))
-
-    def dump_bytecode(self, bucket):
-        if self._client is None:
-            return
-        self._client.set(self._client.LOGLEVEL_DB, self.REDIS_HASH,
-                         bucket.key, b64encode(bucket.bytecode_to_string()).decode())
-

src/sonic-config-engine/setup.py

@@ -43,7 +43,6 @@ py_modules = [
     'minigraph',
     'openconfig_acl',
     'portconfig',
-    'redis_bcc',
 ]
 if sys.version_info.major == 3:
     # Python 3-only modules

src/sonic-config-engine/sonic-cfggen

@@ -31,10 +31,9 @@ from config_samples import generate_sample_config, get_available_config
 from functools import partial
 from minigraph import minigraph_encoder, parse_xml, parse_device_desc_xml, parse_asic_sub_role, parse_asic_switch_type
 from portconfig import get_port_config, get_breakout_mode
-from redis_bcc import RedisBytecodeCache
 from sonic_py_common.multi_asic import get_asic_id_from_name, get_asic_device_id
 from sonic_py_common import device_info
-from swsscommon.swsscommon import SonicV2Connector, ConfigDBConnector, SonicDBConfig, ConfigDBPipeConnector
+from swsscommon.swsscommon import ConfigDBConnector, SonicDBConfig, ConfigDBPipeConnector
 
 
 PY3x = sys.version_info >= (3, 0)
@@ -234,8 +233,7 @@ def _get_jinja2_env(paths):
     Retreive Jinj2 env used to render configuration templates
     """
     loader = jinja2.FileSystemLoader(paths)
-    redis_bcc = RedisBytecodeCache(SonicV2Connector(host='127.0.0.1'))
-    env = jinja2.Environment(loader=loader, trim_blocks=True, bytecode_cache=redis_bcc)
+    env = jinja2.Environment(loader=loader, trim_blocks=True)
     env.filters['sort_by_port_index'] = sort_by_port_index
     env.filters['ipv4'] = is_ipv4
     env.filters['ipv6'] = is_ipv6