This is release v0.2.0 of Loki.
Notable changes:
There were over 100 PR's merged since 0.1.0 was released. Please see the CHANGELOG for a more complete list.
A few of the most notable improvements:
There were some significant improvements in memory handling and performance of Loki:
- Loki: 713 Storage memory improvement.
- Loki: 782 Performance improvement: Query storage by iterating through chunks in batches.
- Loki: 788 Querier timeouts.
- Loki: 794 Support ingester chunk transfer on shutdown.
Additionally, labels are now fetched from storage for the requested timeframe so you are no longer limited to only retrieving labels of what was still in memory:
- Loki: 521 Query label values and names are now fetched from the store.
Please note this introduces a potential new issue if you're asking for labels across a large number of streams over a large timeframe, which causes a large amount of chunks to be loaded. A fix for this is currently being worked out.
Several additions were made to the log processing pipeline:
- Pipeline: 738 Added a template stage for manipulating label values.
- Pipeline: 732 Support for Unix timestamps.
- Pipeline: 760 Support timestamps without year.
A docker logging plugin was created to allow docker containers to send logs directly to Loki:
- Docker-Plugin: 663 Created a Docker logging driver plugin.
And starting with this release there are now multi-architecture docker containers and binaries:
Installation:
The components of Loki are currently distributed in plain binary form and as Docker container images. Choose what fits your use-case best.
Binary:
# download a binary (adapt app, os and arch as needed)
$ curl -fSL -o "/usr/local/bin/loki.gz" "https://github.com/grafana/loki/releases/download/v0.2.0/loki_linux_amd64.gz"
$ gunzip "/usr/local/bin/loki.gz"
# make sure it is executable
$ chmod a+x "/usr/local/bin/loki"Docker container:
$ docker pull "grafana/loki:v0.2.0"
$ docker pull "grafana/promtail:v0.2.0"