Commit Graph

471 Commits (9d22f030cff641d4c2fe8bce330b9eaf4b5ba119)

Author SHA1 Message Date
Tobias Schmidt e82ef154ee Remove unused code leftovers 2016-04-02 20:20:55 -04:00
stuart nelson dbe5d18b6e Instrument scrape pool `sync()`
Instruments:
- duration
- count
2016-03-14 18:30:16 +01:00
stuart nelson 813f61e551 Merge pull request #1484 from prometheus/instrument-retrieval
Instrument retrieval/scrape.go
2016-03-11 12:26:00 +01:00
stuart nelson a1ee77601a Instrument the duration of the `reload` function 2016-03-11 12:12:42 +01:00
Fabian Reinartz 895f2f092f Fix flaky scrape test
t
2016-03-09 16:00:33 +01:00
Fabian Reinartz f2e359962c Sort exported targets 2016-03-08 17:12:27 +01:00
Fabian Reinartz 56fc9bdff3 Handle closed target provider channel
This fixes the case where a target provider closes the update
channel and exits before the context is canceled.
This should only be true for the static provider but it's safer
to generally handle this case.
2016-03-08 15:49:03 +01:00
beorn7 d44b83690e Fix flaky file-sd test 2016-03-07 15:39:18 +01:00
Fabian Reinartz ddc74f712b Add sortable target list 2016-03-02 09:10:20 +01:00
Fabian Reinartz 499f4af4aa Test target URL 2016-03-01 14:49:57 +01:00
Fabian Reinartz 50c2f20756 Add targetScraper tests 2016-03-01 14:33:28 +01:00
Fabian Reinartz 1ede7b9d72 Consolidate TargetStatus into Target.
This commit simplifies the TargetHealth type and moves the target
status into the target itself. This also removes a race where error
and last scrape time could have been out of sync.
2016-03-01 14:33:21 +01:00
Fabian Reinartz 2060a0a15b Turn target group members into plain lists.
As the scrape pool deduplicates targets now, it is no longer necessary
to store a hash map for members of each group.
2016-03-01 14:33:12 +01:00
Fabian Reinartz 0d7105abee Remove scrape config from Target.
This commit removes the scrapeConfig entirely from Target.
All identity defining parameters are thus immutable now and the mutex
can be removed..

Target identity is now correctly defined by the labels and the full URL.
This in particular includes URL parameters that are not specified in the
label set.

Fingerprint is also removed from hash to remove an unnecessary tight coupling
to the common/model package.
2016-03-01 14:32:57 +01:00
Fabian Reinartz 75681b691a Extract HTTP client from Target.
The HTTP client is the same across all targets with the same
scrape configuration. Thus, this commit moves it into the scrape
pool.
2016-03-01 14:31:57 +01:00
Fabian Reinartz 9bea27ae8a Add scraping tests 2016-03-01 14:00:48 +01:00
Fabian Reinartz 76a8c6160d Deduplicate targets in scrape pool.
With this commit the scrape pool deduplicates incoming
targets before scraping them. This way multiple target providers
can produce the same target but it will be scraped only once.
2016-03-01 13:50:51 +01:00
Fabian Reinartz 84f74b9a84 Apply new scrape config on reload.
This commit updates a target set's scrape configuration
on reload. This will cause all running scrape loops to be
stopped and started again with new parameters.
2016-03-01 13:50:51 +01:00
Fabian Reinartz 02f635dc24 Remove interval/timeout from Target internals 2016-03-01 13:50:51 +01:00
Fabian Reinartz 775316f8d2 Move appender construction from Target to scrapePool 2016-03-01 13:50:51 +01:00
Fabian Reinartz fbe251c2df Fix scrape interval length calculation 2016-03-01 13:48:36 +01:00
Fabian Reinartz 1a3253e8ed Make scrape time unambigious.
This commit changes the scraper interface to accept a timestamp
so the reported timestamp by the caller and the timestamp
attached to samples does not differ.
2016-03-01 13:48:36 +01:00
Fabian Reinartz 2bb8ef99d1 Test scrape loop behavior. 2016-03-01 13:48:36 +01:00
Fabian Reinartz c7bbe95597 Remove outdated target tests 2016-03-01 13:48:36 +01:00
Fabian Reinartz 05de8b7f8d Extract target scraping into scrape loop.
This commit factors out the scrape loop handling into
its own data structure.
For the transition it will be directly attached to the
target.
2016-03-01 13:48:36 +01:00
Fabian Reinartz cebba3efbb Simplify and fix TargetManager reloading 2016-03-01 13:48:36 +01:00
Fabian Reinartz da99366f85 Consolidate Target.Update into constructor.
The Target.Update method is no longer needed.
2016-03-01 13:48:36 +01:00
Fabian Reinartz d15adfc917 Preserve target state across reloads.
This commit moves Scraper handling into a separate scrapePool type.
TargetSets only manage TargetProvider lifecycles and sync the
retrieved updates to the scrapePool.

TargetProviders are now expected to send a full initial target set
within 5 seconds. The scrapePools preserve target state across reloads
and only drop targets after the initial set was synced.
2016-03-01 13:48:36 +01:00
Fabian Reinartz 5b30bdb610 Change TargetProvider interface.
This commit changes the TargetProvider interface to use a
context.Context and send lists of TargetGroups, rather than
single ones.
2016-03-01 13:48:36 +01:00
Fabian Reinartz bb6dc3ff78 Remove old tests 2016-03-01 13:48:36 +01:00
Fabian Reinartz 5bfa4cdd46 Simplify target update handling.
We group providers by their scrape configuration. Each provider produces
target groups with an unique identifier.

On stopping a set of target providers we cancel the target providers,
stop scraping the targets and wait for the scrapers to finish.

On configuration reload all provider sets are stopped and new ones
are created. This will make targets disappear briefly on configuration
reload. Potentially scrapes are missed but due to the consistent
scrape intervals implemented recently, the impact is minor.
2016-03-01 13:48:36 +01:00
Jimmi Dyson e59b7c15a3 Kubernetes SD: Fix node IP discovery 2016-03-01 12:24:52 +00:00
beorn7 33a50e69f7 Fix a deadlock
Double acquisition of the RLock usually doesn't blow up, but if the
write lock is called for between the two RLock's, we are deadlocked.

This deadlock does not exist in release-0.17, BTW.
2016-02-29 16:34:29 +01:00
beorn7 fd5108b038 Fix a targetmanager test 2016-02-22 16:43:48 +01:00
Fabian Reinartz 6df1f49c13 Remove fullLabels method and fix target updating
With recent changes to a Target's internal data representation
updating by fullLabels() assigns the additional default
instance label. This breaks target identity comparison and causes
identical targets from service discovery to be constantly swapped.
2016-02-22 13:06:30 +01:00
Fabian Reinartz 825831e98f Use fingerprint for target identity comparison
So far we were using the InstanceIdentifier to compare equality of targets.
This is not always accurate, for example for the blackbox exporter where the 
actual target is in the parameter.
2016-02-17 16:34:53 +01:00
Fabian Reinartz 66767121ab Handle scrape timeout on request.
For historic reasons we were enforcing a timeout directly
via the TCP dialer. This is no longer necessary for quite a while now.
Switching to context.Context will allow us to properly terminate
requests on shutdown as well.
2016-02-16 11:46:02 +01:00
Julius Volz 293486c7b1 Remove old superfluous calls to setLastScrape().
This is called from within the scrape()->report() flow now.

See https://github.com/prometheus/prometheus/pull/1394/files#r52945817
2016-02-15 22:42:24 +01:00
Fabian Reinartz a0078ec84c Merge pull request #1394 from prometheus/scraperef2
Refactor and test appender modifications
2016-02-15 21:19:40 +01:00
Fabian Reinartz 463dd3ea06 Refactor target scrape reporting. 2016-02-15 18:06:15 +01:00
Fabian Reinartz cd28b88b08 Fix wrong EOF error on successful target scraping 2016-02-15 17:23:04 +01:00
Fabian Reinartz 27d71b08d1 Factor out appender wrapping 2016-02-15 16:47:39 +01:00
Fabian Reinartz fe7e91e2eb Make scraping offset consistent.
To evenly distribute scraping load we currently rely on random
jittering. This commit hashes over the target's identity and calculates
a consistent offset. This also ensures that scrape intervals
are constantly spaced between config/target changes.
2016-02-15 16:46:29 +01:00
Fabian Reinartz a06bc75519 Remove occurrences of 'base' labels 2016-02-15 10:36:57 +01:00
Fabian Reinartz 0d44248fb8 Cleanup cluttered test data 2016-02-13 10:13:38 +01:00
Fabian Reinartz 65eba080a0 Cleanup internal target data 2016-02-13 10:13:38 +01:00
Julius Volz 9b6d69610a Fix various typos in comments.
Helpfully reported by
https://goreportcard.com/report/github.com/prometheus/prometheus :)
2016-02-10 03:47:00 +01:00
Julius Volz 3728b5872f Fix target update error handling.
Fixes https://github.com/prometheus/prometheus/issues/1378
2016-02-08 21:42:59 +01:00
Fabian Reinartz 1f877f3d2a Fix deadlock, structure target logging 2016-02-03 10:39:34 +01:00
Fabian Reinartz d0d2c38c68 Fix tests for append API changes 2016-02-03 10:17:08 +01:00
Fabian Reinartz 59f1e722df Return error on sample appending 2016-02-02 14:01:44 +01:00
Björn Rabenstein 9ea3897ea7 Merge pull request #1354 from prometheus/beorn7/storage
Rework the way to communicate backpressure (AKA suspended ingestion)
2016-02-01 15:10:13 +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
beorn7 a7408bfb47 Unify duration parsing
It's actually happening in several places (and for flags, we use the
standard Go time.Duration...). This at least reduces all our
home-grown parsing to one place (in model).
2016-01-29 15:41:50 +01:00
Jimmi Dyson 9faa7515c6 Kubernetes SD: Refactor to handle missing Kubernetes events 2016-01-19 20:49:58 +00:00
Brian Brazil 4a829e63a2 Merge pull request #1299 from PrFalken/master
Support AirBnB's Smartstack Nerve client for SD
2016-01-18 13:31:04 +00:00
Julien Dehee 061fe2f364 Support AirBnB's Smartstack Nerve client for SD
nerve's registration format differs from serverset. With this commit
there is now a dedicated treecache file in util,
and two separate files for serverset and nerve.

Reference:
https://github.com/airbnb/nerve
2016-01-18 14:07:28 +01:00
Brian Brazil 7a5f019c40 Use up/down in UI for consistency with 'up' metric. 2016-01-12 12:09:20 +00:00
Brian Brazil 6b7629be27 Merge pull request #1242 from tommyulfsparre/watcher-fix
Reduces watches in serverset
2015-12-10 10:43:57 +00:00
Jimmi Dyson c12fb447b8 Kubernetes SD: Use first TCP service port as target port & clean up
example config

Fixes #1256
2015-12-08 10:29:40 +00:00
Tommy Ulfsparre 83e09422bf skip already watched child nodes. 2015-12-02 21:31:05 +01:00
Fabian Reinartz 29a69eecb8 Do not panic in Consul SD creation 2015-11-30 18:41:48 +01:00
Jimmi Dyson 2cca07381b KubernetesSD: Create targets for services as well as service endpoints 2015-11-18 14:15:39 +00:00
Brian Brazil 427bf29db1 Add in default port after relabelling.
For the SNMP and blackbox exporters where
the ports tends to not be 80/443 and indeed
there may not be a port this makes the relabelling
a bit simpler as you don't have to figure out this
logic exists and strip off the :80.

This is a breaking change for the example configs of
those exporters.
2015-11-08 11:42:18 +00:00
Brian Brazil fd2bd81cd8 Allow all instance labels in target groups
With the blackbox exporter, the instance label will commonly
be used for things other than hostnames so remove this restriction.
https://example.com or https://example.com/probe/me are some examples.

To prevent user error, check that urls aren't provided as targets
when there's no relabelling that could potentically fix them.
2015-11-07 14:35:20 +00:00
Fabian Reinartz 9cad147265 Merge pull request #1172 from federicobaldo/ec2_sd_improvements
Minor improvements to ec2 service discovery
2015-11-04 13:02:51 +01:00
Federico Baldo d14d2429ea Minor improvements to ec2 sd:
1. static credentials replaced with defaults.DefaultChainCredentials.
This change ensures that credentials are sourced form all possible
providers available with the aws sdk,           in the following order:
env variables, shared awsconfig file in user folder, ec2 instance role.

2. Added a few labels: AvailabilityZone, PublicDns, VpcId (if
available), SubnetId (if in Vpc)
2015-11-02 14:55:24 +01:00
Jimmi Dyson 87940ec213 Kubernetes SD: Rename `masters` to `api_servers` in config 2015-10-24 14:41:14 +01:00
Jimmi Dyson 7ff5cc66ea Kubernetes SD authentication options cleanup 2015-10-23 16:47:52 +01:00
Jimmi Dyson ea9a173008 Kubernetes SD: Use node name as instance label 2015-10-12 21:26:09 +01:00
Julius Volz d88aea7e6f Fix SD mechanism source prefix handling.
The prefixed target provider changed a pointerized target group that was
reused in the wrapped target provider, causing an ever-increasing chain
of source prefixes in target groups from the Consul target provider.

We now make this bug generally impossible by switching the target group
channel from pointer to value type and thus ensuring that target groups
are copied before being passed on to other parts of the system.

I tried to not let the depointerization leak too far outside of the
channel handling (both upstream and downstream) because I tried that
initially and caused some nasty bugs, which I want to minimize.

Fixes https://github.com/prometheus/prometheus/issues/1083
2015-10-09 14:08:22 +02:00
Julius Volz dec9fc9c32 Merge pull request #1148 from prometheus/fix-serverset-multiple-paths
Fix watching multiple Zookeeper paths in serverset SD.
2015-10-08 19:27:06 +02:00
Matt Jibson dcb4856d72 Add SD for Amazon EC2 instances 2015-10-06 18:36:17 -04:00
Julius Volz 60cf4015a4 Fix watching multiple Zookeeper paths in serverset SD.
Fix https://github.com/prometheus/prometheus/issues/1137
2015-10-06 15:54:54 +02:00
Fabian Reinartz e3b6ec9784 Switch to common/log 2015-10-03 10:21:43 +02:00
Jimmi Dyson 0d61605526 Kubernetes SD example: separate out cluster level components & services 2015-09-29 11:22:18 +01:00
Julius Volz 99e8fff872 Fix target manager CPU busyloop caused by bad done-channel handling.
Unfortunately this isn't nicely testable, as it's timing-dependent and
one would have to detect a stray goroutine doing a CPU busyloop...

Fixes https://github.com/prometheus/prometheus/issues/1114
2015-09-28 11:51:16 +02:00
Fabian Reinartz 097d810f37 Merge pull request #1120 from prometheus/flaky-test
retrieval: Reduce flakiness of TestTargetRunScraperScrapes
2015-09-28 09:57:16 +02:00
Brian Brazil ba6688bfce retrieval: Reduce flakiness of TestTargetRunScraperScrapes 2015-09-28 08:34:54 +01:00
Brian Brazil b03569267e retrieval: Add URL parameters to fullLabels too
Move all the special cases into one map, rather than
spreading the logic around.
2015-09-26 16:59:24 +01:00
Brian Brazil 50258929ac Retrieval: Show error message for failed test scrape
This is flaky, and I suspect it was due the to I/O timeout that I've
already fixed. In case that wasn't it, display the error should it
happen again.
2015-09-23 09:24:50 +01:00
Brian Brazil 4bc39dc60e retrieval: Reduce flakiness of TestTargetManagerChan
This will increase test time by a few hundred ms,
this is the 2nd most common cause of flakiness.
2015-09-23 09:00:37 +01:00
Brian Brazil 93145b960a retrieval: Reduce flakiness of target tests
Bump timeouts of tests where we don't want I/O timeouts.

Adjust the full channel test to be much more reliable,
by reducing the ingestion timeout from 1ms to 0.
2015-09-22 19:23:36 +01:00
Fabian Reinartz cac6eea434 Merge pull request #1105 from prometheus/consulnil
Fix nil panic on consul error
2015-09-22 14:55:31 +02:00
Fabian Reinartz 327152862c Update expfmt.NewDecoder usage 2015-09-22 12:11:28 +02:00
Fabian Reinartz 1ce89a4a0b Fix nil panic on consul error 2015-09-22 09:04:31 +02:00
Julius Volz af513468eb Fix some dead code, missing error checks, shadowings.
I applied
https://medium.com/@jgautheron/quality-pipeline-for-go-projects-497e34d6567
and was greeted with a deluge of warnings, most of which were not
applicable or really fixable realistically. These are some of the first
ones I decided to fix.
2015-09-14 12:21:34 +02:00
Jimmi Dyson 7ef9399920 Clean up kubernetes http response bodies 2015-09-11 11:44:28 +01:00
Anders Daljord Morken 9fb65a91af Close HTTP connections on HTTP errors too.
Move defer resp.Body.Close() up to make sure it's called even when the
HTTP request returns something other than 200 or Decoder construction
fails. This avoids leaking and eventually running out of file descriptors.
2015-09-10 22:41:05 +02:00
Fabian Reinartz 8456b7e12f Use go1.5.1 2015-09-10 12:11:44 +02:00
Jimmi Dyson a1574aa2b3 Move TLS options to scrape config
Fixes #1013, fixes #989
2015-09-09 09:52:21 +01:00
Julius Volz b7b7b2e883 Merge pull request #1050 from fabric8io/kubernetes-discovery
Kubernetes SD improvements
2015-09-04 14:58:11 +02:00
Jimmi Dyson d7a7fd4589 Kubernetes SD improvements
* Support multiple masters with retries against each master as required.
* Scrape masters' metrics.
* Add role meta label for node/service/master to make it easier for relabeling.
2015-09-04 11:31:20 +01:00
Fabian Reinartz cc1a2a2061 Remove attachment of global labels upon ingestion 2015-09-03 14:16:23 +02:00
Fabian Reinartz ebf417a282 Fix map initialization 2015-09-01 18:06:22 +02:00
Julius Volz f63a899744 Change config regexes to full-string matches.
This anchors all regular expressions entered via the config to match a
full string vs. a substring.

THIS IS A BREAKING CHANGE!

Fixes part of https://github.com/prometheus/prometheus/issues/996
2015-09-01 15:46:41 +02:00
Fabian Reinartz 542da6774e Fix draining of file watcher events 2015-08-28 12:17:22 +02:00
Daniel Lundin 4abf54b747 serverset: extract shard number from serverset data 2015-08-27 16:26:00 +02:00
Julius Volz 29eaa8c7cf Merge pull request #1030 from prometheus/fix-flakey-filesd
Fix flakey FileSD test.
2015-08-26 13:25:00 +02:00
Julius Volz 3fd5826589 Fix flakey FileSD test.
When the test ends, all files matching the watcher's glob are removed
via defer. In that moment, the draining goroutine may still be running
and then detect no files matching the configured glob just before the
test exits.

This is now solved by waiting for the draining goroutine to finish
before leaving the test function and thus causing the deferred file
removal.
2015-08-26 13:06:34 +02:00
Julius Volz 744d5d5a7a Merge pull request #1029 from prometheus/vet-fixes
Fix "go vet" errors.
2015-08-26 12:50:18 +02:00
Julius Volz 995d3b831d Fix most golint warnings.
This is with `golint -min_confidence=0.5`.

I left several lint warnings untouched because they were either
incorrect or I felt it was better not to change them at the moment.
2015-08-26 12:44:46 +02:00
Julius Volz 963ad82dcb Fix "go vet" errors.
I ignored all errors of the type "composite literal uses unkeyed
fields". Most of them are wrong because of
https://github.com/golang/go/issues/9171.
2015-08-26 02:05:04 +02:00
Fabian Reinartz 6664b77f36 Merge pull request #1021 from prometheus/appenders
move metric modifications into SampleAppenders
2015-08-25 17:47:55 +02:00
Fabian Reinartz 01834fa528 Move metric modifications into SampleAppenders 2015-08-25 15:32:37 +02:00
Fabian Reinartz d6d88f8950 Add missing license headers 2015-08-24 19:19:21 +02:00
Julius Volz d36a7f4e6f Fix busylooping in case of no target providers.
merge() closes the channel that handleUpdates() reads from when there
are zero configured target providers in the configuration. In that case,
the for-select loop in handleUpdates() entered a busy loop. It should
exit when the upstream channel is closed.
2015-08-24 16:42:28 +02:00
Fabian Reinartz 3a0145c09e Reenable blocked appending tests 2015-08-22 09:47:57 +02:00
Fabian Reinartz 438e232c9b Fix grouping of import blocks 2015-08-22 09:42:45 +02:00
Fabian Reinartz 6d0f58dcf3 sanitize scrape health recording code 2015-08-21 23:01:08 +02:00
Fabian Reinartz 25bf5fdaf5 Timeout sample appends 2015-08-21 18:04:35 +02:00
Fabian Reinartz 11a577fcd0 Switch to common/expfmt for extraction 2015-08-21 13:33:38 +02:00
Fabian Reinartz 306e8468a0 Switch from client_golang/model to common/model 2015-08-21 13:33:38 +02:00
Sharif Nassar 6cb519fe82 Add Consul ServiceID to the discovery meta labels. 2015-08-20 14:04:42 -07:00
Fabian Reinartz 0f5022c091 Add missing Kubernetes doc strings 2015-08-18 14:37:28 +02:00
Fabian Reinartz f592740bac Only exit static target provider on done 2015-08-18 11:51:53 +02:00
Julius Volz b4adf2723d Merge pull request #994 from robbiet480/consul-datacenter-name
Pass through current agent Consul datacenter name
2015-08-18 01:09:24 +02:00
Robbie Trencheny 48e461f7db Pass through current agent Consul datacenter name
Instead of only filling __meta_consul_dc when datacenter is set in
consul_sd_config this change fills the label based on what the agent
reports it's current data center is, if datacenter isn't manually set,
otherwise it uses whatever datacenter was set to.
2015-08-17 16:00:26 -07:00
Fabian Reinartz d0a90964c1 Fix license header 2015-08-17 19:51:12 +02:00
Fabian Reinartz eabbdc6603 Add missing license headers 2015-08-17 19:49:10 +02:00
Julius Volz 47a96bff1a Update constant names in comments. 2015-08-17 15:05:06 +02:00
Brian Brazil e1d5eb52f2 retrieval: Don't include unmatched source of regex in replacement.
ReplaceAllString only replaces the matching part of the regex,
the unmatched bits around it are left in place. This is not the
expected or desired behaviour as the replacement string should
be everything.

This may break users dependant on this behaviour, but
what they're doing is still possible.
2015-08-17 00:31:56 +01:00
Fabian Reinartz 3c6dd161d7 Scrape all services on empty services list. 2015-08-14 17:39:41 +02:00
Fabian Reinartz 9b9ff66212 Merge pull request #977 from prometheus/fabxc/target-dedup
Improve target discovery pipeline
2015-08-14 16:38:16 +02:00
Fabian Reinartz 8fa9ec278b Add application labels as meta labels
Removes built-in conditional scraping based on application's
'prometheus' label.
2015-08-14 15:34:02 +02:00
Fabian Reinartz f269943950 Adjust Kubernetes SD to pipeline changes 2015-08-14 13:30:27 +02:00
Fabian Reinartz 4e84b86510 Improve target discovery pipeline
Replace the TargetProvider Stop method with done channels
that ensure properly broadcasted shutdown of the whole pipeline.
2015-08-14 13:30:27 +02:00
Fabian Reinartz 15b4115a25 Merge pull request #986 from prometheus/fabxc/tpdoc
Clarify docs of TargetProvider
2015-08-14 12:07:15 +02:00
Fabian Reinartz 625374ee36 Clarify docs of TargetProvider 2015-08-14 12:02:22 +02:00
Fabian Reinartz f7e3722388 Rename __meta_dns_srv_name to __meta_dns_name
This is change potentially breaking relabeling rules.
2015-08-13 17:02:56 +02:00
Fabian Reinartz b964da4b75 Merge pull request #905 from fabric8io/kubernetes-discovery
Kubernetes discovery
2015-08-13 15:08:32 +02:00
Fabian Reinartz 24e91720ad Merge pull request #980 from prometheus/map-labels
Retrieval: Add relabel action to map labels names with a regex.
2015-08-13 14:36:59 +02:00
Brian Brazil 4e70a0a14e Retrieval: Add relabel action to map label names with a regex.
The intended use case is where a user has tags/labels coming
from metadata in Kubernetes or EC2, and wants to make
some subset of them into target labels.
2015-08-13 13:19:11 +01:00
Jimmi Dyson 923f8111d4 Initial Kubernetes discovery
Fixes #904
2015-08-13 10:38:52 +01:00
Miek Gieben caaa3de4ff Make HashMod use MD5 instead of FNV
MD5 will will distribute the inputs more uniformly over the output
space than FNV; leading to more evenly balanced load when using HashMod.
2015-08-13 09:42:07 +01:00
Fabian Reinartz 0138d37458 Improve unique target group sources.
Include position of same SD mechanisms within the same scrape configuration.
Move unique prefixing out of SD implementations and target manager into
its own interface.
2015-08-10 11:29:09 +02:00
Fabian Reinartz 54202bc5a8 Merge pull request #902 from xperimental/feature/marathon-discovery
retrieval/discovery: Service discovery using marathon API
2015-08-10 01:43:37 +02:00
Robert Jacob 4d0f974c42 Add service discovery using Marathon API. 2015-08-10 01:36:24 +02:00
Will Rouesnel 7810448dbe Add proxy_url parameter to allow specifying per-job HTTP proxy servers
Allow scrape_configs to have an optional proxy_url option which specifies
a proxy to be used for all connections to hosts in that config.

Internally this modifies the various client functions to take a *url.URL pointer
which currently must point to an HTTP proxy (but has been left open-ended to
allow the url format to be extended to support others, such as maybe SOCKS if
needed).
2015-08-08 04:29:27 +10:00
Jimmi Dyson da4c50a6cf Make scheme relabelable via discovery 2015-08-06 12:00:33 +01:00
Jimmi Dyson 52cf6b3e6e Configuration options for bearer tokens, client certs & CA certs
Fixes #918, fixes #917
2015-08-04 17:18:46 +01:00
Florian Pfitzer 1fa0b0f253 fix consul port label 2015-07-31 16:20:17 +00:00
Brian Brazil adf7f16d1a Merge pull request #934 from prometheus/query-params
Retrieval: Make it possible to relabel query params
2015-07-31 11:01:45 +01:00
Brian Brazil d8875d17d8 Retrieval: Make it possible to relabel query params
This only allows relabelling the first value
for a given parameter, this should be sufficient in practice.
2015-07-31 10:09:28 +01:00
Johannes 'fish' Ziemke 6e7d743cd4 Merge pull request #946 from prometheus/add-sd-dns-a
Add support for A record based DNS SD
2015-07-30 16:01:47 +02:00
Johannes 'fish' Ziemke 9ab340e95e Add support for A record based DNS SD
If using A records, the user needs to specify "port" and set "type" to
"A".
2015-07-30 15:55:38 +02:00
beorn7 645f6772e5 Add Consul Address, ServicePort, and ServiceAddress to the meta labels.
In setups where the ServiceAddress is the relevant address for
scraping, users can relabel the `__address__` label to ServiceAddress
+ ":" + ServicePort.

This needs to be documented, of course. Will do once this is LGTM'd.
2015-07-22 18:19:13 +02:00
Julius Volz 9d98910fca Revert "Use Consul ServiceAddress instead of Address when set"
This reverts commit 0ac7e7217e.

See discussion on https://github.com/prometheus/prometheus/pull/812 for
reasoning. While fixing one use case, it breaks others, and we need a
more generic way of handling this.
2015-07-22 13:04:29 +02:00
Fabian Reinartz d53cc7935d retrieval: avoid race conditions 2015-07-08 21:27:52 +02:00
Brian Brazil 3d268d681e retrieval: Handle serverset node not existing.
This stops configuration loading hanging if
the Znode doesn't exist, and retries until the
node does exist.
2015-07-01 13:56:31 +01:00
Fabian Reinartz 080e067601 Merge pull request #832 from prometheus/fabxc/target-test
retrieval: double timeout in target scrape test.
2015-06-25 17:23:52 +02:00
Brian Brazil 52859b8033 Merge pull request #836 from prometheus/shard
Add 'hashmod' relabel action.
2015-06-24 21:40:10 +01:00
Brian Brazil 682f949ab1 Add 'hashmod' relabel action.
This takes the modulus of a hash of some labels.
Combined with a keep relabel action, this allows
for sharding of targets across multiple prometheus
servers.
2015-06-24 21:14:53 +01:00
Fabian Reinartz 23862c92c4 retrieval/discovery: refresh services in Consul to recover from missing events. 2015-06-24 17:48:27 +02:00
Fabian Reinartz c292979374 retrieval: double timeout in target scrape test. 2015-06-23 21:59:55 +02:00
Julius Volz d868264bb8 Improve UI of /alerts page.
Changes to the UI:
- "Active Since" timestamps are now human-readable.
- Alerting rules are now pretty-printed better.
- Labels are no longer just strings, but alert bubbles (like we do on
  the status page for base labels).
- Alert states and target health states are now capitalized in the
  presentation layer rather than at the source.
2015-06-23 18:48:45 +02:00
Fabian Reinartz 53b9d5917d web: improve target URL handling and display. 2015-06-23 13:45:15 +02:00
Fabian Reinartz dc7d27ab9a retrieval: add honor label handling and parametrized querying.
This commit adds the honor_labels and params arguments to the scrape
config. This allows to specify query parameters used by the scrapers
and handling scraped labels with precedence.
2015-06-23 13:45:14 +02:00
Fabian Reinartz 459d18cf18 Merge pull request #812 from Marmelatze/consul_services
Use Consul ServiceAddress instead of Address when set
2015-06-17 20:10:52 +02:00
Florian Pfitzer 0ac7e7217e Use Consul ServiceAddress instead of Address when set 2015-06-17 15:39:42 +02:00
Brian Brazil 4d895242f9 Add support for Zookeeper Serversets for SD.
It can discover an entire tree of serversets, or just one.
2015-06-16 11:02:08 +01:00
Brian Brazil 0dbae36d36 Allow ingested metrics to be relabeled.
The main purpose of this is to allow for blacklisting
of expensive metrics as a tactical option.
It could also find uses for renaming and removing labels
from federation.
2015-06-13 15:18:27 +01:00
Brian Brazil 58ceae82bc Revert "Allow ingested metrics to be relabeled."
This reverts commit f2f26ca08f.

Was accidentally pushed to master instead of a branch for PR.
2015-06-12 22:12:26 +01:00
Brian Brazil f2f26ca08f Allow ingested metrics to be relabeled.
The main purpose of this is to allow for blacklisting
of expensive metrics as a tactical option.
It could also find uses for renaming and removing labels
from federation.
2015-06-12 22:06:30 +01:00
Fabian Reinartz b5fe2e9afe Merge pull request #773 from prometheus/fabxc/simple-cfg
config: simplify default config handling.
2015-06-08 16:22:06 +02:00
Brian Brazil b8b1d3cbac Web: Add pre-relabel labels to status page.
Figuring out what's going on with the new service discovery
and labels is difficult. Add a popover with the labels
to the target table to make things simpler, and help
discovery of potentially useful labels.
2015-06-08 12:19:01 +01:00
Fabian Reinartz 0af1cff8af config: simplify default config handling. 2015-06-06 09:04:04 +02:00
Fabian Reinartz 8214b4ee78 retrieval/discovery: surround __meta_consul_tags value with tag seperators. 2015-06-05 19:18:34 +02:00
Fabian Reinartz 280d11dca8 main: exit on invalid rule files on startup. 2015-06-02 18:44:41 +02:00
Fabian Reinartz 0de6edbdfc Move pkg/ to util/ 2015-06-01 21:12:32 +02:00
Fabian Reinartz dfaf31a1da Move web/httputils to pkg/httputil and add DeadlineClient to it 2015-06-01 21:12:31 +02:00
Fabian Reinartz a4f179230a Merge pull request #744 from prometheus/fabxc/fix-labels
Fix discarding of labels in file target groups
2015-05-27 19:57:15 +02:00
Fabian Reinartz e9b344abee Fix discarding of labels in file target groups 2015-05-27 18:52:44 +02:00
Fabian Reinartz 8b7e5f9184 Stop holding TargetManager lock when stopping components.
TargetProviders may flush some last changes to the target manager
before actually stopping. To properly read those form the channel
the target manager must not be locked while stopping a provider.
2015-05-27 12:41:37 +02:00
Brian Brazil f34de493d5 Add increase() function, to replace delta(..., 1).
This calculates how much a counter increases over
a given period of time, which is the area under the curve
of it's rate.

increase(x[5m]) is equivilent to rate(x[5m]) * 300.
2015-05-26 22:49:21 +01:00
Fabian Reinartz efb39cfd4e Fix file SD test 2015-05-23 21:20:39 +02:00
Julius Volz 267fd34156 Switch Prometheus to use github.com/prometheus/log.
This change is conceptually very simple, although the diff is large. It
switches logging from "github.com/golang/glog" to
"github.com/prometheus/log", while not actually changing any log
messages. V(1)-style logging has been changed to be log.Debug*().
2015-05-20 18:19:32 +02:00
Fabian Reinartz 7143dff02f Add initial implementation for SD via Consul.
This commit adds service discovery using Consul's HTTP API and watches
(long polling) to retrieve target updates.
2015-05-20 11:46:24 +02:00
Fabian Reinartz b0c181dc0d Add Consul SD configuration. 2015-05-20 11:46:24 +02:00
Fabian Reinartz ff832d2e03 Attach __meta_filepath label to file SD targets. 2015-05-19 15:49:38 +02:00
Fabian Reinartz 8de50619f1 Increase target test wait times
On slow systems such as Travis CI occasionally the tests fail
because the wait times are too short.
2015-05-19 12:06:52 +02:00
Fabian Reinartz 385919a65a Avoid inter-component blocking if ingestion/scraping blocks.
Appending to the storage can block for a long time. Timing out
scrapes can also cause longer blocks. This commit avoids that those
blocks affect other compnents than the target itself.
Also the Target interface was removed.
2015-05-18 17:58:51 +02:00
Fabian Reinartz 1a2d57b45c Move template functionality out of target.
The target implementation and interface contain methods only serving a
specific purpose of the templates. They were moved to the template
as they operate on more fundamental target data.
2015-05-18 13:35:43 +02:00
Fabian Reinartz dbc08d390e Move target status data into its own object 2015-05-18 11:15:42 +02:00
Fabian Reinartz 9ca47869ed Provide full SD configs to discovery constructors.
Some SD configs may have many options. To be readable and consistent, make
all discovery constructors receive the full config rather than the separate
arguments.
2015-05-15 14:54:29 +02:00
Fabian Reinartz 93548a8882 Add initial file based service discovery.
This commits adds file based service discovery which reads target
groups from specified files. It detects changes based on file watches
and regular refreshes.
2015-05-15 14:44:54 +02:00
Fabian Reinartz d5aa012fd0 Make HTTP basic auth configurable for scrape targets. 2015-05-15 12:47:50 +02:00
Fabian Reinartz bb540fd9fd Implement config reloading on SIGHUP.
With this commit, sending SIGHUP to the Prometheus process will reload
and apply the configuration file. The different components attempt
to handle failing changes gracefully.
2015-05-13 16:49:46 +02:00
Fabian Reinartz 86087120dd Replace example config with new YAML format. 2015-05-11 18:14:07 +02:00
Fabian Reinartz 5fbde88919 Switch config to YAML format. 2015-05-07 16:52:14 +02:00
Fabian Reinartz b5a8f7b8fa Cleanup, test, and document config. 2015-04-30 21:17:19 +02:00
Fabian Reinartz 945c49a2dd Add relabelling to target management.
This commit adds a relabelling stage on the set of base
labels from which a target is created. It allows to drop
targets and rewrite any regular or internal label.
2015-04-30 18:46:33 +02:00
Fabian Reinartz 0b619b46d6 Change JobConfig to ScrapeConfig.
This commit changes the configuration interface from job configs to scrape
configs. This includes allowing multiple ways of target definition at once
and moving DNS SD to its own config message. DNS SD can now contain multiple
DNS names per configured discovery.
2015-04-28 23:18:55 +02:00
Fabian Reinartz 5015c2a0e8 Make target manager source based.
This commit shifts responsibility for maintaining targets from providers and
pools to the target manager. Target groups have a source name that identifies
them for updates.
2015-04-24 15:49:35 +02:00
Fabian Reinartz 4f8673aa88 Simplify update sync for targets, format config fixtures. 2015-04-19 10:36:26 +02:00
Fabian Reinartz 36184f3530 Show correct error on wrong DNS response. 2015-04-11 16:14:38 +02:00
beorn7 fa1935a644 Remove /api/targets call and do not show job and instance labels on status.
/api/targets was undocumented and never used and also broken.

Showing instance and job labels on the status page (next to targets)
does not make sense as those labels are set in an obvious way.

Also add a doc comment to TargetStateToClass.
2015-03-18 18:53:43 +01:00
beorn7 be11cb2b07 Remove the sample ingestion channel.
The one central sample ingestion channel has caused a variety of
trouble. This commit removes it. Targets and rule evaluation call an
Append method directly now. To incorporate multiple storage backends
(like OpenTSDB), storage.Tee forks the Append into two different
appenders.

Note that the tsdb queue manager had its own queue anyway. It was a
queue after a queue... Much queue, so overhead...

Targets have their own little buffer (implemented as a channel) to
avoid stalling during an http scrape. But a new scrape will only be
started once the old one is fully ingested.

The contraption of three pipelined ingesters was removed. A Target is
an ingester itself now. Despite more logic in Target, things should be
less confusing now.

Also, remove lint and vet warnings in ast.go.
2015-03-15 14:08:22 +01:00
Julius Volz 140eede5e0 Rename UNREACHABLE to UNHEALTHY.
The current wording suggests that a target is not reachable at all,
although it might also get set when the target was reachable, but there
was some other error during the scrape (invalid headers or invalid
scrape content). UNHEALTHY is a more general wording that includes all
these cases.

For consistency, ALIVE is also renamed to HEALTHY.
2015-03-07 23:18:18 +01:00
Sergiusz 'q3k' Bazański 0d0bb3c030 Change instance identifiers to be host:port
This changes the PublicURL function into InstanceIdentifier, which now
returns a simple <host>:<port> string instead of a full URL.
2015-02-20 16:21:13 +01:00