d2595dfef5
In aggregated tables, these columns were missing from the ORDER BY clause. This means they were set to some random values. This is not possible to fix that after their creation (see #60 for a tentative), therefore, we have to drop and recreate the columns. This only affects aggregated tables, not the main table, but nonetheless, unless you look at the last hour, the data is lost.
Akvorado: flow collector, hydrater and visualizer.
This program receives flows (currently Netflow/IPFIX and sFlow), hydrates them with interface names (using SNMP), geo information (using MaxMind), and exports them to Kafka, then ClickHouse. It also exposes a web interface to browse the collected data.
Akvorado is developed by Free, a French ISP, and is licensed under the AGPLv3 license.
A demo site using fake data and running the latest stable version is
available on demo.akvorado.net. It is the
direct result of running docker-compose up on a fresh checkout but
port 2055 is not accessible (you cannot send you own flows). Please,
be gentle with this resource. The demo site also enables you to browse
the documentation (which is also
available in docs/).
Be aware that Akvorado is still young and should be considered as alpha quality. At some point, some features may change in an inconvenient way as it is difficult to mutate ClickHouse tables while keeping all data intact.