9 docs tagged with "monitoring"

Getting the TOO_MANY_SIMULTANEOUS_QUERIES error in ClickHouse? Here's how to analyze which queries are throttling your ClickHouse instance.

Are you contributing to ClickHouse? Here's how to know which tests are flaky when you submit a new PR.

Trying to detect memory leaks in ClickHouse with Valgrind? Here's why and how to use jemalloc instead.

Wondering how long your ClickHouse query will take to execute? Here's how to estimate the progress of your queries in ClickHouse.

Curious to know your ClickHouse server temperature? Here's a query to get your ClickHouse server temperature.

Wondering how to benchmark functions in ClickHouse? Here are a bunch of tips to help you better benchmark your functions in ClickHouse.

ClickHouse mutations are asynchronous and can take time to finish. Here's how to monitor their progress with a built in ClickHouse table.

Can't get to the bottom of a performance issue with your ClickHouse server? Here's how to monitor ClickHouse threads to find performance killers.

Flamegraphs are a great way to visualize metrics from stack traces. Here's how to use flamegraphs to visualize ClickHouse stack traces.