Create Client side metrics

[fosky94]

Description

Added a new sample code to log client side metrics and traces for redis. this will be added to the public docs once this sample code is posted

client libraries that need to be installed:

pip install redis opentelemetry-api opentelemetry-sdk opentelemetry-instrumentation-redis opentelemetry-exporter-gcp-trace opentelemetry-exporter-gcp-monitoring

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[gemini-code-assist]

Code Review

This pull request introduces a Python script for monitoring Redis client-side metrics and tracing using OpenTelemetry, specifically targeting Google Cloud Trace and Monitoring. It includes a wrapper function, smart_redis_call, designed to handle retries and measure various latency metrics. The review feedback identifies two significant areas for improvement: the removal of redundant connection pool operations that introduce unnecessary overhead and latency, and the correction of a misleading 'application blocking latency' metric that uses an expensive and unrepresentative string conversion of the Redis response.

[fosky94]

added CLA and solved comments

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• memorystore/redis/client_side_metrics/main.py:15, tag memorystore_redis_client_side_metrics

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[fosky94]

added region tags

[XrossFox]

Hello, just as a reminder, since we no longer have functioning pipelines, could you add a screenshot of the execution locally? This was added as a requirement for merging python sample changes.

[fosky94]

Hello, just as a reminder, since we no longer have functioning pipelines, could you add a screenshot of the execution locally? This was added as a requirement for merging python sample changes.

Thank you! Please find below screenshots on the execution:

[fosky94]

Applied all recommended dependency pinning, file separation, and PEP-8 global variable fixes requested by XrossFox.

[XrossFox]

Generally speaking, i think it looks okay now, i'd just like to request a screenshot of the execution of pytest locally. LGTM.

[fosky94]

pytest tests passed with local redis:
pytest tests passed 1 skip when the machine doesn't have a local redis running:

[fosky94]

applied changes, added screenshot of tests