The documentation for Context states that this is just as good:
// If Done is not yet closed, Err returns nil.
// If Done is closed, Err returns a non-nil error
Signed-off-by: Bryan Boreham <bryan@weave.works>
* Reload certificates from disk automatically
This change bumps github.com/prometheus/common to include
https://github.com/prometheus/common/pull/173
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* scrape: close idle connections on reload/stop
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* use v0.3.0 tag
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
This commit improves the wording of the subquery examples and makes
them more consistent with other examples.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
If all the samples are deleted for a series,
we should still keep the series in the WAL as
anything else reading the WAL will still care
about it in order to understand the samples.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
* Add unittests for PostingsForMatcher.
* Selector methods are all stateless, don't need a reference.
* Be smarter in how we look at matchers.
Look at all matchers to see if a label can be empty.
Optimise Not handling, so i!="2" is a simple lookup
rather than an inverse postings list.
All all the Withouts together, rather than
having to subtract each from all postings.
Change the pre-expand the postings logic to always do it before doing a
Without only. Don't do that if it's already a list.
The initial goal here was that the oft-seen pattern
i=~"something.+",i!="foo",i!="bar" becomes more efficient.
benchmark old ns/op new ns/op delta
BenchmarkHeadPostingForMatchers/n="1"-4 5888 6160 +4.62%
BenchmarkHeadPostingForMatchers/n="1",j="foo"-4 7190 6640 -7.65%
BenchmarkHeadPostingForMatchers/j="foo",n="1"-4 6038 5923 -1.90%
BenchmarkHeadPostingForMatchers/n="1",j!="foo"-4 6030884 4850525 -19.57%
BenchmarkHeadPostingForMatchers/i=~".*"-4 887377940 230329137 -74.04%
BenchmarkHeadPostingForMatchers/i=~".+"-4 490316101 319931758 -34.75%
BenchmarkHeadPostingForMatchers/i=~""-4 594961991 130279313 -78.10%
BenchmarkHeadPostingForMatchers/i!=""-4 537542388 318751015 -40.70%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo"-4 10460243 8565195 -18.12%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo"-4 44964267 8561546 -80.96%
BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo"-4 42244885 29137737 -31.03%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo"-4 35285834 32774584 -7.12%
BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo"-4 8951047 8379024 -6.39%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo"-4 63813335 30672688 -51.93%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo"-4 45381112 44924397 -1.01%
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
* Fix ReadCheckpoint to ensure that it actually reads all the contents of
each segment in a checkpoint dir, or returns an error.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Now that we're not losing the scrape cache across failed
scrape, a scrape that continually failed but had varying
series or metadata (e.g. timestamps in metric names,
plus hitting smaple_limit) would grow the cache indefinitely.
Add some code to catch that, and flush the cache anyway.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
The goal is to remove almost all references to the
golang.org/x/net/context package.
github.com/gogo/protobuf => v1.2.1
google.golang.org/grpc => v1.19.1
github.com/grpc-ecosystem/grpc-gateway => v1.18.5
It also replaces github.com/cockroachdb/cmux by github.com/soheilhy/cmux
because of [1] which fixes#3909 incidentally.
[1] https://github.com/grpc/grpc-go/issues/2636
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
Add extra meta labels which will be useful in the case
Prometheus discovery instances from all projects.
Signed-off-by: Kien Nguyen <kiennt2609@gmail.com>
since golang 1.12 no special handling is required for file.Sync()
@pborzenkov thanks for the pointer.
Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>
Like `promtool check config <path/to/foo.yaml>`, which resolves relative
paths inside foo.yaml to be relative to `path/to`, this now makes
`promtool test rules <path/to/test.yaml>` do the same thing.
Signed-off-by: David Symonds <dsymonds@gmail.com>
i) Uses the more idiomatic Wrap and Wrapf methods for creating nested errors.
ii) Fixes some incorrect usages of fmt.Errorf where the error messages don't have any formatting directives.
iii) Does away with the use of fmt package for errors in favour of pkg/errors
Signed-off-by: tariqibrahim <tariq181290@gmail.com>
* discovery: factorize for SD based on refresh
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* discovery: use common metrics for refresh
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
