prometheus

Commit Graph

Author	SHA1	Message	Date
Fabian Reinartz	c292979374	retrieval: double timeout in target scrape test.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
Fabian Reinartz	0de6edbdfc	Move pkg/ to util/	10 years ago
Fabian Reinartz	dfaf31a1da	Move web/httputils to pkg/httputil and add DeadlineClient to it	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
Fabian Reinartz	dbc08d390e	Move target status data into its own object	10 years ago
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.	10 years ago
Fabian Reinartz	5fbde88919	Switch config to YAML format.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
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.	10 years ago
Sergiusz 'q3k' Bazański	bb69a3d284	Hide HTTP auth parts from URL This instroduces an extra function in the Target interface (PublicURL) which is used to populate the instance field in scraped metrics.	10 years ago
beorn7	0f191629c6	Next try to deal with backed-up ingestion. This is now not even trying to throttle in a benign way, but creates a fully-fledged error. Advantage: It shows up very visible on the status page. Disadvantage: The server does not really adjusts to a lower scraping rate. However, if your ingestion backs up, you are in a very irregulare state, I'd say it _should_ be considered an error and not dealt with in a more graceful way. In different news: I'll work on optimizing ingestion so that we will not as easily run into that situation in the first place.	10 years ago
Bjoern Rabenstein	5859b74f1b	Clean up license issues. - Move CONTRIBUTORS.md to the more common AUTHORS. - Added the required NOTICE file. - Changed "Prometheus Team" to "The Prometheus Authors". - Reverted the erroneous changes to the Apache License.	10 years ago
Julius Volz	d6b9e97655	Remove extraction.Result type, simplify code.	10 years ago
Brian Brazil	e56786b221	Have scrape time as a pseudovariable, not a prometheus variable. This ensures it has the right timestamp, and is easier to work with. Switch sd variable away from 'outcome', using total/failed instead.	10 years ago
Johannes 'fish' Ziemke	ff95a52b0f	Rename Address to URL The "Address" is actually a URL which may contain username and password. Calling this Address is misleading so we rename it. Change-Id: I441c7ab9dfa2ceedc67cde7a47e6843a65f60511	10 years ago
Bjoern Rabenstein	b1e4956142	Apply a giant code cleanup. Essentially: - Remove unused code. - Make it 'go vet' clean. The only remaining warnings are in generated code. - Make it 'golint' clean. The only remaining warnings are in gerenated code. - Smoothed out same minor things. Change-Id: I3fe5c1fbead27b0e7a9c247fee2f5a45bc2d42c6	10 years ago
Bjoern Rabenstein	fee88a7a77	Remove the remaining races, new and old. Also, resolve a few other TODOs. Change-Id: Icb39b5a5e8ca22ebcb48771cd8951c5d9e112691	10 years ago
Bjoern Rabenstein	14bda4180c	Changes after pair code review. Change-Id: Ib72d40f8e9027818cfbbd32a7a7201eebda07455	10 years ago
Brian Brazil	5edf689133	Stagger scrapes to spread out load. Change-Id: Ib141b271e4adfb817886871f86051c207b05cf35	10 years ago
Brian Brazil	4a2b96f848	Remove backoff on scrape failure. Having metrics with variable timestamps inconsistently spaced when things fail will make it harder to write correct rules. Update status page, requires some refactoring to insert a function. Change-Id: Ie1c586cca53b8f3b318af8c21c418873063738a8	10 years ago
Bjoern Rabenstein	814e479723	Treat non-200 HTTP response as error. Change-Id: I2a9f3b47012b3c4839be53aa44c66d16dd41a24a	10 years ago
Julius Volz	740d448983	Use custom timestamp type for sample timestamps and related code. So far we've been using Go's native time.Time for anything related to sample timestamps. Since the range of time.Time is much bigger than what we need, this has created two problems: - there could be time.Time values which were out of the range/precision of the time type that we persist to disk, therefore causing incorrectly ordered keys. One bug caused by this was: https://github.com/prometheus/prometheus/issues/367 It would be good to use a timestamp type that's more closely aligned with what the underlying storage supports. - sizeof(time.Time) is 192, while Prometheus should be ok with a single 64-bit Unix timestamp (possibly even a 32-bit one). Since we store samples in large numbers, this seriously affects memory usage. Furthermore, copying/working with the data will be faster if it's smaller. MEMORY USAGE RESULTS Initial memory usage comparisons for a running Prometheus with 1 timeseries and 100,000 samples show roughly a 13% decrease in total (VIRT) memory usage. In my tests, this advantage for some reason decreased a bit the more samples the timeseries had (to 5-7% for millions of samples). This I can't fully explain, but perhaps garbage collection issues were involved. WHEN TO USE THE NEW TIMESTAMP TYPE The new clientmodel.Timestamp type should be used whenever time calculations are either directly or indirectly related to sample timestamps. For example: - the timestamp of a sample itself - all kinds of watermarks - anything that may become or is compared to a sample timestamp (like the timestamp passed into Target.Scrape()). When to still use time.Time: - for measuring durations/times not related to sample timestamps, like duration telemetry exporting, timers that indicate how frequently to execute some action, etc. NOTE ON OPERATOR OPTIMIZATION TESTS We don't use operator optimization code anymore, but it still lives in the code as dead code. It still has tests, but I couldn't get all of them to pass with the new timestamp format. I commented out the failing cases for now, but we should probably remove the dead code soon. I just didn't want to do that in the same change as this. Change-Id: I821787414b0debe85c9fffaeb57abd453727af0f	11 years ago
Julius Volz	d69b85e6c9	Add global label support via Ingesters.	11 years ago
Matt T. Proud	a5141e4d0a	Depointerize storage conf. and chain ingester. The storage builders need to work with the assumption that they have a copy of the underlying configuration data if any mutations are made.	11 years ago
Julius Volz	3b970c5133	Add variable interpolation to notification messages. This includes required refactorings to enable replacing the http client (for testing) and moving the NotificationReq type definitions to the "notifications" package, so that this package doesn't need to depend on "rules" anymore and that it can instead use a representation of the required data which only includes the necessary fields.	11 years ago
Matt T. Proud	30b1cf80b5	WIP - Snapshot of Moving to Client Model.	12 years ago
Julius Volz	d8110fcd9c	Send sample arrays instead of single samples over channels.	12 years ago
Matt T. Proud	6fac20c8af	Harden the tests against OOMs. This commit employs explicit memory freeing for the in-memory storage arenas. Secondarily, we take advantage of smaller channel buffer sizes in the test.	12 years ago
Bernerd Schaefer	b8bc91d6c0	Target test uses correct telemetry headers	12 years ago
Bernerd Schaefer	3929582892	Target uses HTTP transport with deadlines Instead of externally handling timeouts when scraping a target, we set timeouts on the HTTP connection. This ensures that we don't leak goroutines on timeouts. [fixes #181]	12 years ago
Julius Volz	d4ff85db5a	Add instance label to health (up) timeseries.	12 years ago
Julius Volz	8c9e9632a8	Record scrape health timeseries per target.	12 years ago
Julius Volz	047eb219e4	Fix target health state update. Right now, futureState is only used to give hints to the health scheduler, but nowhere is this future state persisted into the target's state field, so we don't actually track a target's state over time.	12 years ago

43 Commits (3a5c0f30c171b7cbb3e6a3c4074fe9cc1fb5f566)