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XRootD Monitoring Collector

Docker Automated build

XRootD monitoring collector for ingesting monitoring data from the XRootD server, aggregating it into one monitoring record per file transfer, and sending a resulting JSON-formatted record into a AMQP-based message bus.

Configuration

The DetailedCollector needs the a configuration in order to connect to the AMQP message bus.

[AMQP]

# Host information
url = amqps://username:password@example.com

# Exchange to write to
exchange = xrd.detailed

This file is named connection.conf and should be in the Collectors directory or deployed with docker volumes, as shown below.

Deployment

The Detailed collector is available from DockerHub: https://hub.docker.com/repository/docker/opensciencegrid/xrootd-monitoring-collector

You can deploy this monitoring collector with docker-compose, or your favorite container orchestration engine. It will need to receive UDP packets from XRootD servers.

Here is an example docker-compose.yml file for the Detailed Collector:

version: '3.2'
services:
  detailed_collector:
    image: "opensciencegrid/xrootd-monitoring-collector"
    volumes:
      - ./connection.conf:/configs/connection.conf
    ports:
      - "9930:9930/udp"
      - "8000:8000/tcp"
    restart: always

Monitoring

The collector exports a Prometheus compatible interface on port 8000 that gives information about the internal state of the collector, including:

  • Number of packets received
  • Number of WLCG or StashCache file transfers sent to the AMQP message bus.
  • Errors while processing the monitoring packets