* api/metric changes from jmacd:jmacd/batch_obs_2
* Add an SDK test
* Use a single collector method
* Two fixes
* Comments; embed AsyncRunner
* Comments
* Comment fix
* More comments
* Renaming for clarity
* Renaming for clarity (fix)
* Lint
Fixes#657
With the changes in #667 and #669 to use a plain-old-mutex for
concurrent access of Histogram and MinMaxSumCount aggregators,
the StateLocker implementation is no longer used in the project.
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
* Reimplement histogram using mutex instead of stateLocker
Move existing implementation to histogram_statelocker.go. Implement
benchmarks for single thread and parallel histogram updates comparing
mutex version to stateLocker version
* Drop statelocker implementation and alignment tests, benchmarks
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
* Switch MinMaxSumCount to a mutex lock instead of StateLocker
With multiple values being modified for each Update(), a single mutex
lock and non-atomic operations ends up being faster than making each
value update into an atomic operation.
* Remove StateLocker implementation and comparison benchmarks
* Remove field offset tests. No longer required with no atomics.
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
* New label set API
* Checkpoint
* Remove label.Labels interface
* Fix trace
* Remove label storage
* Restore metric_test.go
* Tidy tests
* More comments
* More comments
* Same changes as 654
* Checkpoint
* Fix batch labels
* Avoid Resource.Attributes() where possible
* Update comments and restore order in resource.go
* From feedback
* From feedback
* Move iterator_test & feedback
* Strenghten the label.Set test
* Feedback on typos
* Fix the set test per @krnowak
* Nit
* Point to the convenience functions in api/key package
This is to increase the visibility of the api/key package through the
api/core package, otherwise developers often tend to miss the api/key
package altogether and write `core.Key(name).TYPE(value)` and complain
at the verbosity of such a construction. The api/key package would
allow them to write `key.TYPE(name, value)`.
* Use the api/key package where applicable
This transforms all the uses of `core.Key(name).TYPE(value)` to
`key.TYPE(name, value)`. This also should help increasing the
visibility of the api/key package for developers reading the otel-go
code.
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
* TraceID and SpanID implementations for Stringer Interface
* Hex encode while stringifying
* Modify format specifiers wherever SpanID is used
* comment changes
* Remove TraceIdString() and SpanIdString()
* Comments Fixes
* Update Resource
When looking at grouping telemetry in an exporter based on the Resource
it is ideal if a map can be make with the key being represented by a
Resource. However, given the Resource is not hashable, this is not
possible.
This add a `String` method that can be used as a map key during
grouping. Additionally, this means the Resource now implements the
`Stringer` interface providing human-readable info when prited.
The internal structure of the Resource is changed. A static slice
containing all key-values in a sorted order replaces the existing map.
Additionally a set of keys is added to accommodate lookup during
`Merge`. Also, the string representation is kept in an internal field so
as to save processing for the `String` method (all fields are assumed to
be static after creation).
The `Attributes` method now returns a sorted slice of the associated
key-values.
The `Merge` method has been updated to support the changed structure of
the Resource.
New tests are added to validate the `String` method.
* Update comment
* Change loop into returned append
* Update key-value less func
Keys are unique in this package, treat them that way.
* Remove unnecessary allocation on empty attributes
* Update `Merge` method
Remove incomplete sorting of merged slices. Instead use the `sort`
package.
Add tests to catch sorting failure identified.
* Apply suggestions from code review
Co-Authored-By: ET <evantorrie@users.noreply.github.com>
* Escape Resource string representation
To ensure uniqueness of the string representation, the key-value content
needs to be escaped.
* Switch to an eager evaluation for the `String` method
* Refactor `Merge` method
Leave optimization to the future and simplify the merge.
* Add AttributeIterator
Include a method for a user of the Resource to iterate over the related
attributes without needed to copy the attributes.
* Fix ineffectual
* Fix lint
* Add licenses
* keys -> keySet for Resource
Co-authored-by: ET <evantorrie@users.noreply.github.com>
Co-authored-by: Rahul Patel <rahulpa@google.com>
This PR adds histogram support to the prometheus exporter.
- Adds a new aggregator selector that returns a histogram for `MeasureKind`.
The selector can be constructed using `simple.NewWithHistogramMeasure`
- Adds support for histogram aggregators in prometheus collect method.
With this PR, the default selector is changed to use histograms.
In order to support the prometheus histogram, the `aggregator.Histogram`
interface is extended with the `Sum` method.
fixes#487
Co-authored-by: Rahul Patel <rahulpa@google.com>
* Remove LabelSet frmo api/metric
* SDK tests pass
* Restore benchmarks
* All tests pass
* Remove all mentions of LabelSet
* Test RecordBatch
* Batch test
* Improves benchmark (some)
* Move the benchmark to match HEAD
* Align labels for GOARCH=386
* Add alignment test
* Disable the stress test fo GOARCH=386
* Fix bug
* Move atomic fields into their own file
* Add a TODO
* Comments
* Remove metric.Labels(...)
* FTB
Co-authored-by: Liz Fong-Jones <lizf@honeycomb.io>
Update license header to standard format for source files missed prior.
Add license header to new source files.
Add Makefile check to test all `*.go` and `*.sh` files have a copyright
notice (or comment about them being auto-generated) within the first few
lines.
* Add skeleton uniqueness checker
* Fix the build w/ new code in place
* Add sync tests
* More test
* Implement global uniqueness checking
* Set the library name
* Ensure ordered global initialization
* Use proper require statement for errors
* Comment
* Apply feedback fixes
* Comment and rename from feedback
* Temporarily opt-out export.Labels from label encoding stuff
* Stop passing label encoding stuff to export.Labels
* Drop label encoding stuff from SDK
* Dogstatd exporter does not need to implement label exporter anymore
* more dogstatd exporter fixes
* export labels get back to encoding stuff
in a lame way, but improvements are coming in following commits
* Get encoded labels through export.Labels
* make SDK to provide its own implementation of export.Labels
* drop dead code
* add noop label exporter
* make export simple labels immutable
* Move the default label encoder to export package
* Simplify the simple export labels a bit
* Reserve some label exporter IDs
* Document and shuffle the code a bit
* Prepare for bring the iterator benchmark test back
We can install a callback to the Batcher's process function - this is
the place where we can access the labels, and thus test the label
iterator.
* Bring back the iterator benchmarks
* Simplifications and docs
* Fix copyright to be consistent with the rest
* Fix typo
* Put reserved label encoder IDs into constants
We get fewer comments about magic numbers that way.
* Fix the label encoder as label exporter thinko
* Update License header for all source files
- Add Apache 2.0 header to source files that did not have one.
- Update all existing headers dated to 2019 to be 2020
- Remove comma from License header to comply with the Apache 2.0
guidelines.
* Update Copyright notice
Use the standard Copyright notices outlined by the
[CNCF](https://github.com/cncf/foundation/blob/master/copyright-notices.md#copyright-notices)
The `checkpoint` function is executed in a single thread so we can do
the encoding lazily before passing the encoded version of labels to
the exporter. This is a cheap and quick way to avoid encoding the
labels on every collection interval.
Co-authored-by: Rahul Patel <rahulpa@google.com>
