sqs-consumer
opentracing-javascript
sqs-consumer | opentracing-javascript | |
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4 | 32 | |
1,678 | 1,090 | |
0.9% | - | |
8.5 | 1.6 | |
7 days ago | over 2 years ago | |
TypeScript | TypeScript | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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sqs-consumer
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Infinite loop pattern to poll for a queue in a REST server app
You could utilize a wrapper like sqs-consumer. Check out their implementation.
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How to Instrument AWS Services with OpenTelemetry
To receive the messages from the queue, we will use the sqs-consumer library. The service will receive messages describing newly created orders. After some processing, it will change the order status in the table to βcompletedβ.
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Knock and Open Source
As we built out this new system, we looked at the current module ecosystem to determine if anything would fit our needs to keep this queue cleared. Unfortunately, the best module we could find, sqs-consumer, did not support FIFO queues and the issues indicated they did not have any intention to do so. Therefore, we wrote sqsiphon. Our library heavily borrows from the public interface of sqs-consumer, but is implemented in a much different way. In particular, sqsiphon leverages the Node.js event loop through setImmediate to build the polling mechanism instead of relying on SQS's "long polling" feature. Additionally, sqsiphon utilizes the JavaScript prototype to reduce reliance on expensive closures. As a bonus, OpenTracing support is built-in to sqsiphon so that applications built with it can be monitored effectively. The result is a library that can poll SQS extremely quickly while requiring very little overhead.
opentracing-javascript
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Kotlin Spring WebFlux, R2DBC and Redisson microservice in k8s πβ¨π«
Spring Spring web framework Spring WebFlux Reactive REST Services Spring Data R2DBC a specification to integrate SQL databases using reactive drivers Redisson Redis Java Client Zipkin open source, end-to-end distributed tracing Spring Cloud Sleuth auto-configuration for distributed tracing Prometheus monitoring and alerting Grafana for to compose observability dashboards with everything from Prometheus Kubernetes automating deployment, scaling, and management of containerized applications Docker and docker-compose Helm The package manager for Kubernetes Flywaydb for migrations
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Go and ElasticSearch full-text search microservice in k8sπβ¨π«
Elasticsearch client for Go RabbitMQ Go RabbitMQ Client Library Jaeger open source, end-to-end distributed tracing Prometheus monitoring and alerting Grafana for to compose observability dashboards with everything from Prometheus Echo web framework Kibana is user interface that lets you visualize your Elasticsearch Docker and docker-compose Kubernetes K8s Helm The package manager for Kubernetes
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Go EventSourcing and CQRS with PostgreSQL, Kafka, MongoDB and ElasticSearch πβ¨π«
PostgeSQL as event store database Kafka as messages broker gRPC Go implementation of gRPC Jaeger open source, end-to-end distributed tracing Prometheus monitoring and alerting Grafana for to compose observability dashboards with everything from Prometheus MongoDB MongoDB database Elasticsearch Elasticsearch client for Go. Echo web framework Kibana Kibana is data visualization dashboard software for Elasticsearch Migrate for migrations
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OpenTelemetry vs OpenTracing - choosing one for instrumentation
OpenTracing was an open-source project aimed at providing vendor-neutral APIs and instrumentation for distributed tracing. In distributed cloud-native applications, it is difficult for engineering teams to see how requests are performing across services. And thatβs where distributed tracing comes into the picture.
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OpenTelemetry and Jaeger | Key concepts, features, and differences
OpenTracing is now archived, and it is suggested to migrate to OpenTelemetry.
- Microservice communication Diagram
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Go EventSourcing and CQRS microservice using EventStoreDB πβ‘οΈπ«
In this article let's try to create closer to real world Event Sourcing CQRS microservice using: ππ¨βπ»π EventStoreDB The database built for Event Sourcing gRPC Go implementation of gRPC MongoDB Web and API based SMTP testing Elasticsearch Elasticsearch client for Go. Jaeger open source, end-to-end distributed tracing Prometheus monitoring and alerting Grafana for to compose observability dashboards with everything from Prometheus swag Swagger for Go Echo web framework Kibana Kibana is user interface that lets you visualize your Elasticsearch
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Do Not Log
I agree; but I think it'll take years, if ever, to change this culture.
Logging is a byproduct of a past time; everything is a file, stdout is a file, lets persist that file, now we have multiple replicas, lets collect the file into a multi-terabyte searchable database.
The biggest downside: Its WILDLY expensive. Large orgs often have an entire team dedicated to maintaining logging (ELK) infrastructure. This price-tag inevitably leads to bikeshedding on backend teams about how to "reduce the amount we're logging" or "cleaning up the logs" or "structuring them to be more useful".
Outside of development, they are so rarely useful. Yet inevitably someone will say: "you're just not structuring your logs correctly." Maybe that's true; similarly, I don't find vim to be a highly productive editing experience. Maybe I just don't have the thousands of extensions it would take to make it so. Or maybe You're stuck in the past and ignoring two decades of tooling improvement. Both can be true.
I'm phrasing this as a false dichotomy, because in many teams: it is. Logging is easy; its built-in to most languages; so devs log. The information we need is in the system; its a needle in a haystack, but the needle is there. We log when a request comes in, when it hits pertinent functions, when its finished, how its finished, the manager says: "just look at the logs". Instead of "what better tooling can we make an investment in so future investigations of this nature don't take a full day."
For starters: Tracing. Tracing systems should be built-in to EVERY LANGUAGE, just like console.log. We have a standard [1] sponsored by the Linux Foundation and supported by every major trace ingestion system. This is not a problem of camps and proprietary systems; its a problem of culture. I should be able to call a nodejs stdlib function at startup, specify where I want traces to go, sampling rate, etc, and immediately get every single function call instrumented. Its literally just highly-structured-by-default logging! Dump the spans to stdout by default! Our log ingestion systems can read each line, determine if its a span, if so route to trace ingestion, otherwise route to log ingestion.
This is a critical step because it asserts that tracing is actually a very powerful tool that everyone needs to learn, like logging. Everyone knows about logging. Why? console.log. Its there, it gets used. Tracing right now is relegated to a subculture of "advanced diagnostics"; you gotta adopt a tracing provider, bring in dependencies, learn each implementation of OpenTracing, authenticate to send traces over HTTP... as a community, we should normalize just "dump traces like you dump logs, to stdout", have a formatter to make them nice to use in development, and now all that instrumentation work that any dev is capable of utilizing (just like console.log) "just works" in production.
[1] https://opentracing.io/
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I share my authentication server.
Service mesh - ssup2ket services run on service mesh for detailed traffic control and easy monitoring. Service mesh is applied through Istio. Istio uses OpenTracing for easy request tracing between multiple services.
- logging best practices
What are some alternatives?
AdonisJs Application
kafka-go - Kafka library in Go
SailsJS - Realtime MVC Framework for Node.js
opentelemetry-specification - Specifications for OpenTelemetry
sns-sqs-big-payload - Amazon SNS/SQS client library that enables sending and receiving messages with payload larger than 256KiB via Amazon S3.
prometheus - The Prometheus monitoring system and time series database.
Koa - Expressive middleware for node.js using ES2017 async functions
signoz - SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. π₯ π₯. π Open source Application Performance Monitoring (APM) & Observability tool
Express - Fast, unopinionated, minimalist web framework for node.
opentelemetry-js - OpenTelemetry JavaScript Client
sqs-producer - Simple scaffolding for applications that produce SQS messages
apm-agent-nodejs - Elastic APM Node.js Agent