SIENTIAPDE-1312

Update dependencies and enhance OpcRepository functionality

- Updated sientia-dataops-library version to 1.4.7 in requirements files.
- Modified GITHUB_BRANCH in values.yaml for improved pipeline management.
- Refactored OpcRepository class to inherit from BaseActivity, adding enhanced logging and error handling during disconnection.
- Implemented a disconnection fallback mechanism to ensure graceful handling of OPC server disconnections.

laborious/activities/storage.py

@@ -10,14 +10,11 @@ with workflow.unsafe.imports_passed_through():
     from sientia_do.notifications.models import NotificationLevel
     from sientia_do.observability.logger import Logger
     from sientia_do.temporal.activities.postgres import Postgres
-    from sientia_do.temporal.constants import now
+    from sientia_do.temporal.constants import now, DATETIME_FORMAT_FILENAME
 
     from laborious.utils.repository.minio_repository import MinioRepository
 
 
-DATETIME_FILENAME_FORMAT = '%Y-%m-%d_%H-%M-%S'
-
-
 class Storage(Postgres):
     """
     Extensions for Postgres activities with a helper to export query results
@@ -84,7 +81,7 @@ class Storage(Postgres):
         metadata = input_data.get('metadata', {})
         object_prefix = input_data.get('object_prefix', 'datasets/retrain')
 
-        timestamp = now().strftime(DATETIME_FILENAME_FORMAT)
+        timestamp = now().strftime(DATETIME_FORMAT_FILENAME)
         object_name = f'{object_prefix}_{timestamp}.parquet'
         uri = f's3://{self.minio_repository.minio_bucket}/{object_name}'
 

laborious/utils/repository/opc_repository.py

@@ -1,3 +1,5 @@
+import asyncio
+import json
 import time
 import traceback
 from datetime import datetime
@@ -10,6 +12,7 @@ from asyncua.ua import DataValue, DateTime, Variant, VariantType
 from sientia_do.notifications.handlers import CoreNotificationHandler as NotificationHandler
 from sientia_do.notifications.models import NotificationLevel
 from sientia_do.observability.logger import Logger
+from sientia_do.temporal.activities.base import BaseActivity
 
 from laborious import metrics
 
@@ -37,19 +40,19 @@ data_type_map = {
 }
 
 
-class OpcRepository:
+class OpcRepository(BaseActivity):
     def __init__(
         self,
         opc_id: str,
         url: str,
+        pod_id: str,
         logger: Logger,
         notification_handler: NotificationHandler,
         reconnection_interval: int = 60,
         server_uri: str | None = None,
         cert_path: str | None = None,
         private_key_path: str | None = None,
-        server_cert_path: str | None = None,
+        server_cert_path: str | None = None
-        pod_id: str | None = None,
     ):
         self.url = url
         self.id = opc_id
@@ -65,6 +68,8 @@ class OpcRepository:
         self.client: None | Client = None
         self.pod_id = pod_id
 
+        BaseActivity.__init__(self, logger, notification_handler, set_error_counter=True)
+
         self.metadata = {
             'model_name': '-',
             'model_id': '-',
@@ -125,7 +130,14 @@ class OpcRepository:
             Exception: If the connection to the OPC server fails.
         """
 
-        self.client = Client(self.url)
+        self.client = Client(self.url)  # type: ignore[attr-defined]
+
+        self.client.name = self.pod_id
+        self.client.application_name = self.pod_id
+        pod_uri = self.pod_id.replace('-', ':')
+        self.client.application_uri = pod_uri
+        self.client.product_uri = pod_uri
+
         if self.cert_path:
             await self.set_security()
         self.logger.custom_info(f'Starting connection to OPC server {self.id}...', self.metadata)
@@ -169,6 +181,28 @@ class OpcRepository:
                 'attachment_content': trace,
             }
 
+    async def disconnection_fallback(self) -> list:
+        """
+        Tries 5 times to disconnect from the OPC UA server, with a delay of 100ms x try.
+        """
+
+        assert self.client is not None
+        error_stack = []
+        for i in range(5):
+            try:
+                self.logger.info(f'Disconnecting from OPC UA server, attempt {i+1} of 5')
+                await self.client.disconnect()
+                return []
+            except Exception as e:
+                self.logger.error(f'Failed to disconnect from OPC UA server in attempt {i+1} of 5: {e}')
+                error_stack.append({
+                    'attempt': i+1,
+                    'error': str(e),
+                    'traceback': traceback.format_exc(),
+                })
+                await asyncio.sleep(0.1 * i)
+        return error_stack
+
     async def disconnect(self):
         """
         Gracefully disconnect from the OPC server.
@@ -179,11 +213,20 @@ class OpcRepository:
         """
         if self.client is None:
             return
-        try:
+
-            await self.client.disconnect()
+        errors = await self.disconnection_fallback()
-            self.logger.custom_info('Disconnected from OPC server', self.metadata)
+        if errors:
-        except Exception as e:
+            self.send_notification(
-            self.logger.custom_error(f'Failed to disconnect from OPC server: {e}', self.metadata)
+                metadata=self.metadata,
+                notification_id=f'OPC_DISCONNECTION_ERROR_{self.id}',
+                message=f'Failed to disconnect from OPC server in 5 attempts: {errors}',
+                block='opc_repository',
+                level=NotificationLevel.ERROR,
+                attachment_content=json.dumps(errors, indent=4),
+            )
+        else:
+            self.logger.warning(f'Disconnected from OPC server {self.id} successfully')            
+
         self.client = None
 
     async def validate_connection(self) -> tuple[bool, dict[str, Any]]:

requirements-light.txt

@@ -3,7 +3,7 @@ psycopg2-binary
 sqlalchemy
 asyncua
 redis
-git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.4.6
+git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.4.7
 prometheus-client
 botocore
 boto3

requirements.txt

@@ -3,7 +3,7 @@ psycopg2-binary
 sqlalchemy
 asyncua
 redis
-git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.4.6
+git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.4.7
 git+ssh://git@github.com/Aignosi/sientia-mlops-library.git@0.39.0
 prometheus-client
 botocore

values.yaml

@@ -151,7 +151,7 @@ env:
   - name: GITHUB_REPO_URL
     value: "git@github.com:Aignosi/sientia-dataops-laborious_temporal.git"
   - name: GITHUB_BRANCH
-    value: SIENTIAPDE-1231-ajustar-o-retreino-do-courier-no-laborious
+    value: "SIENTIAPDE-1312-melhorias-e-correcoes-nas-pipelines-de-dados"
   - name: PYTHON_APP
     value: "laborious.worker.worker"