They can start with a * which makes YAML barf if not quoted. Instead of
figuring out individually what does and does not need to be quoted,
always quote.
Signed-off-by: Matthias Rampke <mr@soundcloud.com>
This is more portable (works on any system that has UNIX signals) and
removes the dependency on fsnotify, which doesn't compile on AIX. It
also reduces the probability of failed reloads due to partial writes.
Fixes#241.
Signed-off-by: Matthias Rampke <mr@soundcloud.com>
At high traffic levels, the locking around sending on channels can cause
a large amount of blocking and CPU usage. These adds an event queue
mechanism so that events are queued for short period of time, and
flushed in batches to the main exporter goroutine periodically.
The default is is to flush every 1000 events, or every 200ms, whichever
happens first.
Signed-off-by: Clayton O'Neill <claytono@github.com>
This adds the ability to accept Datadog's distribution type and treat it
like a histogram/summary.
Signed-off-by: Clayton O'Neill <claytono@github.com>
I realized that "TTLs are applied" is ambiguous. Metrics don't only
expire on receiving a sample, so mention that this is about the
configuration.
Signed-off-by: Matthias Rampke <mr@soundcloud.com>
* Quantile values for a Summary are now configurable.
* The default quantiles (DefObjectives) in the prometheus Go client library is
deprecated. This commit removes the reliance on it.
Signed-off-by: Harry Bagdi <harrybagdi@gmail.com>
This removes the not actually available log flags from the README. We
should really have those (#111), but at least it's less confusing this
way.
Fixes#110.
The escaping changed in 728bdc52ae, before
0.1.0. Add a test for the escape function, and test various cases,
including those mentioned in the README.
This reveals that the README is inaccurate, adjust it to what has been
the reality for many years. Fixes#97.
Strings with leading asterisks need to be escaped in YAML.
Add the same examples into the test suite to make sure they do what we
claim they do.
Fixes#102.
* Updated mappings to accept custom help text in YAML config
* Updated exporter to display configured help messages
* Update README to reflect aditional configurability
* Removed inaccurate comment
* Removed some cruft from a rebase
* Added `regex` match_type as valid config callout in both individual mappers
and mapper defaults
* Added test coverage for changes
* Updated documentation to reflect usage of `match_type` parameter and
provide example of a raw regex match rule
* Remove option flag
* Update NewExporter call signature to not take suffix boolean
* Update tests to reflect new behavior and signature
* Update documentation to reflect option flag removal
* Removed legacy mapper config parser
* Removed logic to switch to YAML parsing based on mapping filename
* Removed tests for legacy mapper config
* Remove references to legacy mapper config format from `README.md`
