This "brings back" protobuf parsing, with the only goal to play with
the new sparse histograms.
The Prom-2.x style parser is highly adapted to the structure of the
Prometheus text format (and later OpenMetrics). Some jumping through
hoops is required to feed protobuf into it.
This is not meant to be a model for the final implementation. It
should just enable sparse histogram ingestion at a reasonable
efficiency.
Following known shortcomings and flaws:
- No tests yet.
- Summaries and legacy histograms, i.e. without sparse buckets, are
ignored.
- Staleness doesn't work (but this could be fixed in the appender, to
be discussed).
- No tricks have been tried that would be similar to the tricks the
text parsers do (like direct pointers into the HTTP response
body). That makes things weird here. Tricky optimizations only make
sense once the final format is specified, which will almost
certainly not be the old protobuf format. (Interestingly, I expect
this implementation to be in fact much more efficient than the
original protobuf ingestion in Prom-1.x.)
- This is using a proto3 version of metrics.proto (mostly to be
consistent with the other protobuf uses). However, proto3 sees no
difference between an unset field. We depend on that to distinguish
between an unset timestamp and the timestamp 0 (1970-01-01, 00:00:00
UTC). In this experimental code, we just assume that timestamp is
never specified and therefore a timestamp of 0 always is interpreted
as "not set".
Signed-off-by: beorn7 <beorn@grafana.com>
* factor out different varbit schemes and include Beorn's "optimum" for buckets
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* use more compact dod encoding scheme for SHS chunk columns
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* remove FB VB and xor dod encoding because we won't use it
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* HistoChunk metadata encoding
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* add SparseHistogram.Copy()
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* histogram test: test appending a few histograms
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* add license headers
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* Append sparse histograms into the Head block
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Add AtHistogram() to Iterator interface. Make HistoChunk conform to Chunk interface.
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* integer types and timestamp separation
1) unify types to int64. as suggested by beorn. we want to support
counters going down (resets) even if we plan to create new chunks for
now, in that case
2) histogram type doesn't know its own timestamp. include it separately
in appending and iteration
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* correction: count and zeroCount to remain unsigned
to make api more resilient and that's what we use in protobuf anyway
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
* temp hack. Ganesh will fix
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
We cannot just use prometheus/client_model directly because we want to
stay consistent with the use of gogo-protobuf. So this converts
metrics.proto to proto3 and edits it lightly so that it fits into
the framework how prometheus/prometheus handles protobuf.
Note that metrics.proto couldn't be merged into the prompb package
because prompb already has an Exemplar type, which is different from
the Exemplar type in metrics.proto. The directory structure seems to
play a role in the protobuf world, so I better kept it.
Signed-off-by: beorn7 <beorn@grafana.com>
* Added MaxSamplesPerSend
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added tests
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fixed order of require
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added docs
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* writes -> writesReceived
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Improved send loop
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Cut v2.28.0-rc.0 (#8954)
* Cut v2.28.0-rc.0
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Changelog fixup
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Address review comments
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Downgrade some features to enhancements
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Adjust release date to today
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Migrate HTTP SD docs from docs repo (#8972)
See discussion in https://github.com/prometheus/docs/pull/1975
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Cut Prometheus v2.28.0 (#8973)
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Cut v2.28.0-rc.0
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Changelog fixup
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Address review comments
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Downgrade some features to enhancements
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Adjust release date to today
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Show progress bar when max is not 0
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added semicolon
Signed-off-by: Levi Harrison <git@leviharrison.dev>
Add cleanup of the lockfile when the db is cleanly closed
The metric describes the status of the lockfile on startup
0: Already existed
1: Did not exist
-1: Disabled
Therefore, if the min value over time of this metric is 0, that means that executions have exited uncleanly
We can then use that metric to have a much lower threshold on the crashlooping alert:
If the metric exists and it has been zero, two restarts is enough to trigger the alarm
If it does not exist (old prom version for example), the current five restarts threshold remains
Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com>
* Change metric name + set unset value to -1
Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com>
* Only check the last value of the clean start alert
Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com>
* Fix test + nit
Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com>
* Fix/removed forwarding
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added global 'wasReady' and 'wasUnexpected'
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Eslint fixes
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added withStartingIndicator wrapper
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fixed condition
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Removed unused import
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Moved withStartingIndicator calls to pages index
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fixed withStartingIndicator tests
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fixed eslint (maybe?)
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Trailing comma
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Added prettier ignore
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Fix eslint (pt. 2)
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* Improve graph info tooltip for series and exemplars
It now shows more clearly what the label sets are about (series vs. exemplar +
associated series) and also shows the metric name for both label sets when it
is present.
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Fix up inconsistent title casing
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Explicitly indicate empty labelsets in hover tooltip
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Adjust tests to new hover detail
Signed-off-by: Julius Volz <julius.volz@gmail.com>
