GitLab Monitor:Observability, 20 May 2022

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From YouTube: ClickHouse on GDK

Description

This is a demo on how to enable ClickHouse in GDK.

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Hi, my name is gabriel mozetto and I'm a senior backend engineer at gitlab as part of the work to introduce click house database to our stack. We have added it to the gitlab development kit, the ddk- and this is what I'm gonna demo you today before. I start make sure that you have the jdk installed on your machine.

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You can type, for example, jdk version, and that will give you the version and the checkout version of the codepen.

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As first step, we are going to run a gdk update. So that's gpk update on your terminal, and this will take a while, and this will download any difference between the gdk repository and other dependent repositories like the gitlab and kitaly and other things.

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Okay, this is done now, so we will proceed with setting the required configuration changes. First, one is to enable the experimental, ruby services support which click house implementation relies on. So that's type in gdk, config set jdk dot, experimental dot, release services.

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And set it to two.

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Next, we need to enable click house, so jdk config set click house, dot, enabled and set it to true.

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At this point, we need to install click house on our machine.

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This can be done in a variety of ways, but the approach we think would be better is to download the pre-compiled binary compatible with your operational system and cpu architecture, and this is something that we are going to automate soon in a similar way of how we handle, for example, installing elastic search.

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If um the click house binary can be found into your path and variable, you don't need to do anything extra. So this is the case in my machine, but uh in any other case you can set up the full path to the binary with the following command. So you type jdk config, set click house dot thing, and then you face the pull path to the binary.

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uh You can look at other examples and specific variables standing variables in the jdk.example.bmo file with big house configuration set, you need to run gdk reconfigure.

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Okay, after it finished it, you can start click holes with a bdk start. Click close.

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You can also check that all the configurations are available in the click hold folder.

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And please note that, due to how both click house and minio uses the same 9000 port, we had to configure a different port for click house inside gdk, so inside jdk it will be using the 9001 as the tcp port tcp native protocol.

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That means that if you want to access click house through the command line, you have to specify the minus minus port 9001.. So click the house point minus minus port 9001 and congratulations. You have click house installed uh split house is now integrated in vdk. You have access to the same functionality as the other services like, for example, it's been managed by our unit.

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Every configuration changes will be reflected whenever you do a gdk reconfigure and you can also have access to some helpful commands like, for example, jdk detail, click house where you can see all the logs in real time. I hope you enjoy. It have a great day.