Commit graph

9 commits

Author SHA1 Message Date
Fabian Reinartz 59f1e722df Return error on sample appending 2016-02-02 14:01:44 +01:00
beorn7 ec08c9a391 Rework the way to communicate backpressure (AKA suspended ingestion)
This gives up on the idea to communicate throuh the Append() call (by
either not returning as it is now or returning an error as
suggested/explored elsewhere). Here I have added a Throttled() call,
which has the advantage that it can be called before a whole _batch_
of Append()'s. Scrapes will happen completely or not at all. Same for
rule group evaluations. That's a highly desired behavior (as discussed
elsewhere). The code is even simpler now as the whole ingestion buffer
could be removed.

Logging of throttled mode has been streamlined and will create at most
one message per minute.
2016-02-01 14:45:44 +01:00
Corentin Chary a2e4439086 Add support for remote storage on Graphite
Allows to use graphite over tcp or udp. Metrics labels
and values are used to construct a valid Graphite path
in a way that will allow us to eventually read them back
and reconstruct the metrics.

For example, this metric:

model.Metric{
	model.MetricNameLabel: "test:metric",
	"testlabel":           "test:value",
	"testlabel2":           "test:value",
)

Will become:

test:metric.testlabel=test:value.testlabel2=test:value

escape.go takes care of escaping values to match Graphite
character set, it basically uses percent-encoding as a fallback
wich will work pretty will in the graphite/grafana world.

The remote storage module also has an optional 'prefix' parameter
to prefix all metrics with a path (for example, 'prometheus.').

Graphite URLs are simply in the form tcp://host:port or
udp://host:port.
2015-11-10 07:58:57 +01:00
Julius Volz dac26cef71 Rename global "labels" config option to "external_labels". 2015-09-29 20:54:20 +02:00
Julius Volz eeb1da36ac Fix InfluxDB write support to work with InfluxDB 0.9.x.
Because the InfluxDB client library currently pulls in multiple MBs of
unnecessary dependencies, I have modified and cut up the vendored
version to only pull in the few pieces that are actually needed.

On InfluxDB's side, this dependency issue is tracked in:

https://github.com/influxdb/influxdb/issues/3447

Hopefully, it will be resolved soon.

If a password is needed for InfluxDB, it may be supplied via the
INFLUXDB_PW environment variable.
2015-09-16 17:40:03 +02:00
Fabian Reinartz 8fa719f778 Attach global labels to remote storage samples 2015-09-03 16:38:04 +02:00
Fabian Reinartz 438e232c9b Fix grouping of import blocks 2015-08-22 09:42:45 +02:00
Fabian Reinartz 306e8468a0 Switch from client_golang/model to common/model 2015-08-21 13:33:38 +02:00
Fabian Reinartz 23e77450ff main: cleanup initialization of remote storage. 2015-06-23 18:24:48 +02:00