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Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

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Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#21

Post by r0b3r4 »

akdor1154 wrote: post #20

Cool! I'm currently playing with the Grafana Clickhouse connector to do broadly similar - are these compatible? Can Telescope read an OTEL logs table in Clickhouse?

Yes, this is exactly where Telescope can be useful (and actually, the way Grafana displays logs was my motivation for writing my own viewer)

Telescope can work with any table in ClickHouse. Of course, not every single ClickHouse type has been tested, but there shouldn’t be any issues with the most common ones

If you want, you can check how it works with the OTEL schema in the live demo here: https://telescope.humanuser.net/sources/otel-demo/explore

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#23

Post by r0b3r4 »

csh602 wrote: post #3

Looks simple and clean! Big ups for starts of good screenshots, docs, and quickstart (Docker) instructions. Regarding the name, "Telescope" is also the name of a Neovim fuzzy finder[0] that dominates the ecosystem there. Other results appear by searching "telescope github". [0]: https://github.com/nvim-telescope/telescope.nvim

Well, every single name I came up with was already taken and present in GitHub. So...

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#24

Post by piterrro »

tacker2000 wrote: post #5

Looks cool I might try it out! I need a central place, something simple where I can actually read the contents of the logs that are generated by the dozen of services that I run for clients, etc… instead of stupidly SSH’ing to every server. Does this fit the use case? I tried Loki once but it was painful to set up and more geared toward aggregating events and stats.

I'm author of Logdy: https://logdy.dev/ https://github.com/logdyhq/logdy-core It comes as a precompiled binary you can download/deploy on the server and use to browse larger log files. I suggest you take a look!

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#25

Post by piterrro »

There's also Logdy (https://github.com/logdyhq/logdy-core) that can work with raw files and comes with a UI as well in a single precompiled binary so no need for installs and setups. If you're looking for a simple solution for browsing log files with a web UI, this might be it! (I'm the author)

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#27

Post by new_user_final »

Rollbar has a feature to upload JavaScript sourcemaps files. When I am viewing logs from minified js files, it automatically apply sourcemaps and correctly shows line number.

Is there any open source tool that does the same?

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#28

Post by danmur »

r0b3r4 wrote: post #22
darkstar_16 wrote: post #12

I like how this is mostly based on the Kibana UI. Makes easier to convince other people to move to it.

To be honest, I was more inspired by DataDog :)

I've used graylog the most so that's what it looks like to me :P. I like how you can do a bunch of extraction stuff right there in the query interface though, that's awesome. It seems like a very thoughtful UI.

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#29

Post by nh2 »

It would be great if the logs could describe a bit what exactly one has to do to use this as an alternative to Grafana Loki.

How do I get my logs (e.g. local text files from disk like nginx logs, or files that need transformation like systemd journal logs) into ClickHouse in a way that's useful for Telescope?

What kind of indices do I have to configure so that queries are fast? Ideally with some examples.

How can I make that full-text substring search queries are fast (e.g. "unexpected error 123")? When I filter with regex, is that still fast / use indices?

From the docs it isn't quite clear to me how to configure the system so that I can just put a couple TB of logs into it and have queries be fast.

Thanks!

Re: Show HN: Telescope – an open-source web-based log viewer for logs in ClickHouse

#30

Post by walth »

tacker2000 wrote: post #5

Looks cool I might try it out! I need a central place, something simple where I can actually read the contents of the logs that are generated by the dozen of services that I run for clients, etc… instead of stupidly SSH’ing to every server. Does this fit the use case? I tried Loki once but it was painful to set up and more geared toward aggregating events and stats.

I'd recommend VictoriaLogs and shipping to via Vector
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