hubcio commented on code in PR #2175: URL: https://github.com/apache/iggy/pull/2175#discussion_r2360325146
########## core/connectors/flink/test/connector_flink_test.py: ########## @@ -0,0 +1,184 @@ +#!/usr/bin/env python3 + +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +""" +Test script to demonstrate Flink connector interaction with a real Flink cluster +""" + +import requests +import json +import time +from datetime import datetime + +FLINK_URL = "http://localhost:8081"; + +def test_flink_connector_apis(): + """Test the APIs that the Flink connectors use""" + + print("=" * 50) + print("Testing Flink Connector APIs") + print("=" * 50) + print() + + # 1. Check cluster overview (what FlinkClient.check_cluster_health does) + print("1. Testing cluster health check (used by connectors on startup):") + response = requests.get(f"{FLINK_URL}/v1/overview") + if response.ok: + overview = response.json() + print(f" ✓ Cluster Version: {overview.get('flink-version')}") + print(f" ✓ Running Jobs: {overview.get('jobs-running')}") + print(f" ✓ Available Slots: {overview.get('slots-available')}/{overview.get('slots-total')}") + print() + + # 2. List jobs (what FlinkReader.list_running_jobs does) + print("2. Testing job listing (used by source connector to find data sources):") + response = requests.get(f"{FLINK_URL}/v1/jobs") + if response.ok: + jobs = response.json() + running_jobs = [j for j in jobs.get('jobs', []) if j['status'] == 'RUNNING'] + print(f" ✓ Found {len(running_jobs)} running jobs") + for job in running_jobs: + print(f" - Job ID: {job['id']}") + print() + + # 3. Get job details with vertices (what FlinkReader.get_job_vertices does) + print("3. Testing job vertex inspection (used to find source/sink operators):") + if running_jobs: + job_id = running_jobs[0]['id'] + response = requests.get(f"{FLINK_URL}/v1/jobs/{job_id}") + if response.ok: + job_detail = response.json() + print(f" ✓ Job Name: {job_detail.get('name')}") + print(f" ✓ Vertices (operators):") + for vertex in job_detail.get('vertices', []): + # This is what FlinkReader.is_matching_source checks + vertex_name = vertex['name'].lower() + if 'source' in vertex_name: + print(f" - SOURCE: {vertex['name']} [{vertex['status']}]") + elif 'sink' in vertex_name: + print(f" - SINK: {vertex['name']} [{vertex['status']}]") + else: + print(f" - OPERATOR: {vertex['name']} [{vertex['status']}]") + print() + + # 4. Test checkpoint API (what FlinkClient.trigger_checkpoint does) + print("4. Testing checkpoint API (used by sink for exactly-once semantics):") + if running_jobs: + job_id = running_jobs[0]['id'] + # Try to trigger a checkpoint + response = requests.post( + f"{FLINK_URL}/v1/jobs/{job_id}/checkpoints", + json={"checkpointType": "FULL"} + ) + if response.status_code == 202: + print(f" ✓ Checkpoint trigger accepted") + else: + print(f" ⚠ Checkpoint trigger returned: {response.status_code}") + + # Check checkpoint status + response = requests.get(f"{FLINK_URL}/v1/jobs/{job_id}/checkpoints") + if response.ok: + checkpoints = response.json() + latest = checkpoints.get('latest', {}).get('completed') + if latest: + print(f" ✓ Latest checkpoint ID: {latest.get('id')}") + else: + print(f" ⚠ No completed checkpoints yet") + print() + + # 5. Test JAR upload endpoint (what FlinkClient.upload_jar would use) + print("5. Testing JAR management (used for submitting connector jobs):") + response = requests.get(f"{FLINK_URL}/v1/jars") + if response.ok: + jars = response.json() + jar_count = len(jars.get('files', [])) + print(f" ✓ {jar_count} JARs currently uploaded") + if jar_count > 0: + for jar in jars['files']: + print(f" - {jar['name']}") + print() + + # 6. Test metrics API (what FlinkReader.get_source_metrics uses) + print("6. Testing metrics API (used to monitor data flow):") + if running_jobs: + job_id = running_jobs[0]['id'] + response = requests.get(f"{FLINK_URL}/v1/jobs/{job_id}/metrics?get=numRestarts,uptime") + if response.ok: + metrics = response.json() + for metric in metrics: + print(f" ✓ {metric['id']}: {metric.get('value', 'N/A')}") + print() + + # 7. Show what data transfer would require + print("7. Data Transfer Requirements:") + print(" The connectors are correctly using Flink's REST APIs for:") + print(" ✓ Cluster monitoring and health checks") + print(" ✓ Job discovery and vertex inspection") + print(" ✓ Checkpoint/savepoint management") + print(" ✓ Metrics collection") + print() + print(" For actual data transfer, you would need:") + print(" • A Flink job with Queryable State enabled") + print(" • Or a custom sink that writes to REST/WebSocket") + print(" • Or intermediate storage (Kafka/Redis)") + print(" • Or Flink SQL Gateway (if available)") + print() + +def simulate_connector_behavior(): Review Comment: are you sure those are tests? ;) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
