klog
Leveled execution logs for Go (fork of https://github.com/golang/glog) (by kubernetes)
coroot-node-agent
A Prometheus exporter based on eBPF that gathers comprehensive container metrics (by coroot)
klog | coroot-node-agent | |
---|---|---|
2 | 8 | |
509 | 272 | |
0.8% | 2.2% | |
6.2 | 8.3 | |
20 days ago | 9 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
klog
Posts with mentions or reviews of klog.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-24.
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Need help with identifying a log format
Klog
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Mining metrics from unstructured logs
I would say it's not actually detection, it's more like guessing. For most log formats, the agent simply looks for a mention of known levels at the beginning of each message. In addition, we implemented special parsers for glog/klog and redis log formats. If it is impossible to detect the level of severity, the UNKNOWN level is used.
coroot-node-agent
Posts with mentions or reviews of coroot-node-agent.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-24.
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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
What are some alternatives?
When comparing klog and coroot-node-agent you can also consider the following projects:
coroot-aws-agent - A prometheus exporter that gathers metrics from AWS services.
loghub - A large collection of system log datasets for AI-driven log analytics [ISSRE'23]
better-parse - A nice parser combinator library for Kotlin
mtail - extract internal monitoring data from application logs for collection in a timeseries database
omada_exporter - Prometheus Exporter for TP-Link Omada Controller SDN.