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55 lines
1.1 KiB
Markdown
55 lines
1.1 KiB
Markdown
# Clickhouse
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ClickHouse is an open-source column-oriented DBMS (columnar database management system) for online analytical processing (OLAP) that allows users to generate analytical reports using SQL queries in real-time.
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## Getting Started
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```nix
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# In `perSystem.process-compose.<name>`
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{
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services.clickhouse."clickhouse-1".enable = true;
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}
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```
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{#tips}
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## Tips & Tricks
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{#change-port}
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### Change the HTTP default port
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Clickhouse has [HTTP Interface](https://clickhouse.com/docs/en/interfaces/http) that is enabled by default on port 8123. To change the default port, use the `extraConfig` option:
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```nix
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{
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services.clickhouse."clickhouse-1" = {
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enable = true;
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extraConfig = {
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http_port = 9050
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};
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};
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}
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```
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{#initial-database}
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### Initial database schema
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To load a database schema, you can use the `initialDatabases` option:
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```nix
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{
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services.clickhouse."clickhouse-1" = {
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enable = true;
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initialDatabases = [
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{
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name = "sample_db";
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schemas = [ ./test.sql ];
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}
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# or just create the database:
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{
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name = "sample_db_without_schema";
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}
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];
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};
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}
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```
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