Vector — High-Performance Observability Data Pipeline

What it is

Vector is an observability data pipeline written in Rust. It collects logs, metrics, and traces from any source, transforms them with a built-in remap language (VRL), and routes them to any destination. Vector replaces tools like Logstash, Fluentd, and Telegraf with a single binary that handles all three data types.

Vector targets SRE teams, platform engineers, and anyone managing observability infrastructure. Its Rust foundation delivers high throughput with low memory usage, making it practical for high-volume production environments.

How it saves time or tokens

Vector consolidates log collection, metric aggregation, and trace routing into one tool. The Vector Remap Language (VRL) provides a type-safe transformation layer that catches errors at parse time rather than runtime. A single TOML configuration file defines sources, transforms, and sinks, eliminating the multi-tool configuration sprawl common in observability stacks.

How to use

1. Install Vector using the official install script: curl --proto '=https' --tlsv1.2 -sSfL https://sh.vector.dev | bash.
2. Create a TOML config file defining sources (where data comes from), transforms (how to parse and enrich), and sinks (where to send).
3. Run Vector with vector --config /etc/vector/vector.toml and monitor throughput via the built-in API.

Example

# /etc/vector/vector.toml

[sources.nginx_logs]
type = 'file'
include = ['/var/log/nginx/access.log']
read_from = 'beginning'

[transforms.parse]
type = 'remap'
inputs = ['nginx_logs']
source = '''
. = parse_nginx_log!(.message, 'combined')
'''

[sinks.elasticsearch]
type = 'elasticsearch'
inputs = ['parse']
endpoints = ['http://localhost:9200']
bulk.index = 'nginx-%Y-%m-%d'

Related on TokRepo

• Monitoring Tools — Observability and monitoring tools for production systems
• DevOps Tools — Infrastructure automation and operations

Common pitfalls

• VRL (Vector Remap Language) is not a general-purpose language. It is purpose-built for data transformation. Learn its type system before writing complex transforms.
• Vector buffers data in memory by default. Configure disk buffers for production to prevent data loss during backpressure or restarts.
• Source and sink compatibility varies by version. Check the Vector docs for your specific version before assuming a source or sink is available.