promhouse

README

PromHouse

PromHouse is a long-term remote storage with built-in clustering and downsampling for Prometheus 1 and 2 on top of ClickHouse. Or, rather, it will be someday. Feel free to like, share, retweet, star and watch it, but do not use it in production yet.

It requires Go 1.9+.

SQL queries

The largest jobs and instances by time series count:

SELECT
    job,
    instance,
    COUNT(*) AS value
FROM time_series
GROUP BY
    visitParamExtractString(labels, 'job') AS job,
    visitParamExtractString(labels, 'instance') AS instance
ORDER BY value DESC LIMIT 10

The largest metrics by time series count (cardinality):

SELECT
    name,
    COUNT(*) AS value
FROM time_series
GROUP BY
    visitParamExtractString(labels, '__name__') AS name
ORDER BY value DESC LIMIT 10

The largest time series by samples count:

SELECT
    labels,
    value
FROM time_series
ANY INNER JOIN
(
    SELECT
        fingerprint,
        COUNT(*) AS value
    FROM samples
    GROUP BY fingerprint
    ORDER BY value DESC
    LIMIT 10
) USING (fingerprint)