coroot-node-agent
klog
coroot-node-agent | klog | |
---|---|---|
8 | 7 | |
275 | 524 | |
3.3% | - | |
8.3 | 7.4 | |
6 days ago | 28 days ago | |
Go | Go | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
coroot-node-agent
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Infra mapping
Our product can do that. It's based on an eBPF Prometheus exporter and doesn't require manual integration.
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Delay accounting: an underrated feature of the Linux kernel
Node-agent gathers per-TGID statistics from the kernel through the Netlink protocol and aggregates it to the per-container metrics:
- node-agent - an open-source Prometheus exporter based on eBPF that gathers comprehensive container metrics: log summaries, container-to-container network latency, cloud meta-information, etc.
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How ping measures network round-trip time accurately using SO_TIMESTAMPING
While working on node-agent, we set out to measure network latency between containers and the services they communicate with. Since the agent has already discovered the endpoints that each container communicates with, we just need to measure network latency. We embedded "pinger" directly into the agent to measure end-to-end latency because the ICMP Echo requests should be sent from within the network namespace of each container.
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Building a service map using eBPF
To address said disadvantages, we implemented eBPF-based container tracing which is a part of our open source Prometheus exporter node-agent. It passively monitors all TCP connections on a node, associates every connection with the related container, and exports metrics in Prometheus format:
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Mining metrics from unstructured logs
At Coroot, we implemented an automated log parsing in our open-source Prometheus exporter node-agent. To explain how it works, let's follow the same steps as I mentioned above.
- Show HN: A Prometheus exporter that gathers сomprehensive containers' metrics
klog
- Klog: A plain-text file format and a command line tool for time tracking
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Ask HN: What apps have you created for your own use?
I came up with a file format for time-tracking, which lets me store the data in plain-text files in a human-friendly notation. I also built a corresponding CLI tool for evaluating the files on the terminal.
I’ve been using it almost daily for the past couple of years, and so far it has served me quite well.
Project site / docs: https://klog.jotaen.net
File spec: https://github.com/jotaen/klog/blob/main/Specification.md
- klog: time tracking in plain text
- Show HN: Time tracking with plain text files
- Klog: Time tracking with plain text files
What are some alternatives?
klog - Leveled execution logs for Go (fork of https://github.com/golang/glog)
server - self-hosted tag-based time tracking
loghub - A large collection of system log datasets for AI-driven log analytics [ISSRE'23]
clj-org-analyzer - Fun with org data
coroot-aws-agent - A prometheus exporter that gathers metrics from AWS services.
textnote - Simple tool for creating and organizing daily notes on the command line
mtail - extract internal monitoring data from application logs for collection in a timeseries database
txt_book - Standard format for ebooks in plain txt files. Including book metadata and bookmarking.
omada_exporter - Prometheus Exporter for TP-Link Omada Controller SDN.
timetrap - Simple command line timetracker
CCTime - Simple, unobtrusive time tracking utility for Windows
mdtimesheet - Calculates time spent on projects, based on a markdown .plan style timesheet file.