293 Commits (8dbfa14607a5cb138df43638f06c1a938c73df84)

Author	SHA1	Message	Date
Brian Brazil	36d2c4bd0b	Add generic write path using grpc. ... This uses a new proto format, with scope for multiple samples per timeseries in future. This will allow users to pump samples out to whatever they like without having to change the core Prometheus code. There's also an example receiver to save users figuring out the boilerplate themselves.	8 years ago
Dan Milstein	764ceaa939	Add timeout to test, cap waiting at 1 second	8 years ago
Dan Milstein	007907b410	Fix one of the tests for a remote storage QueueManager ... Specifically, the TestSpawnNotMoreThanMaxConcurrentSendsGoroutines was failing on a fresh checkout of master. The test had a race condition -- it would only pass if one of the spawned goroutines happened to very quickly pull a set of samples off an internal queue. This patch rewrites the test so that it deterministically waits until all samples have been pulled off that queue. In case of errors, it also now reports on the difference between what it expected and what it found. I verified that, if the code under test is deliberately broken, the test successfully reports on that.	8 years ago
Dmitry Vorobev	273e457da4	web: return status code and error message for config resource	8 years ago
beorn7	064b57858e	Consistently use the `Seconds()` method for conversion of durations ... This also fixes one remaining case of recording integral numbers of seconds only for a metric, i.e. this will probably fix #1796.	9 years ago
Dmitry Vorobev	bd2a770015	storage/remote: Spawn not more than "maxConcurrentSends" goroutines.	9 years ago
Dmitry Savintsev	7fdb62c253	fix several minor golint style issues	9 years ago
Jonathan Boulle	38098f8c95	Add missing license headers ... Prometheus is Apache 2 licensed, and most source files have the appropriate copyright license header, but some were missing it without apparent reason. Correct that by adding it.	9 years ago
Tobias Schmidt	e82ef154ee	Remove unused code leftovers	9 years ago
Julius Volz	d3b53bd7f0	Fix comment about Graphite mapping of dimensions.	9 years ago
Fabian Reinartz	59f1e722df	Return error on sample appending	9 years ago
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.	9 years ago
Corentin Chary	7b6c3e556c	Use '.' instead of '=' to separate labels from their values in Graphite ... Using .label=value. was weird to use in Graphite and didn't bring much value.	9 years ago
Corentin Chary	a2e4439086	Add support for remote storage on Graphite ... Allows to use graphite over tcp or udp. Metrics labels and values are used to construct a valid Graphite path in a way that will allow us to eventually read them back and reconstruct the metrics. For example, this metric: model.Metric{ model.MetricNameLabel: "test:metric", "testlabel": "test:value", "testlabel2": "test:value", ) Will become: test:metric.testlabel=test:value.testlabel2=test:value escape.go takes care of escaping values to match Graphite character set, it basically uses percent-encoding as a fallback wich will work pretty will in the graphite/grafana world. The remote storage module also has an optional 'prefix' parameter to prefix all metrics with a path (for example, 'prometheus.'). Graphite URLs are simply in the form tcp://host:port or udp://host:port.	9 years ago
Fabian Reinartz	e3b6ec9784	Switch to common/log	9 years ago
Julius Volz	dac26cef71	Rename global "labels" config option to "external_labels".	9 years ago
Julius Volz	eeb1da36ac	Fix InfluxDB write support to work with InfluxDB 0.9.x. ... Because the InfluxDB client library currently pulls in multiple MBs of unnecessary dependencies, I have modified and cut up the vendored version to only pull in the few pieces that are actually needed. On InfluxDB's side, this dependency issue is tracked in: https://github.com/influxdb/influxdb/issues/3447 Hopefully, it will be resolved soon. If a password is needed for InfluxDB, it may be supplied via the INFLUXDB_PW environment variable.	9 years ago
Julius Volz	5f77fce578	Improve remote storage queue manager metrics.	9 years ago
Fabian Reinartz	8fa719f778	Attach global labels to remote storage samples	9 years ago
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.	9 years ago
Fabian Reinartz	438e232c9b	Fix grouping of import blocks	9 years ago
Fabian Reinartz	306e8468a0	Switch from client_golang/model to common/model	9 years ago
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).	9 years ago
Fabian Reinartz	23e77450ff	main: cleanup initialization of remote storage.	10 years ago
Fabian Reinartz	b105e26f4d	storage: remove global flags	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
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*().	10 years ago
Julius Volz	593e565688	Allow writing to InfluxDB/OpenTSDB at the same time.	10 years ago
Julius Volz	61fb688dd9	Add experimental InfluxDB write support.	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
beorn7	8a1c195b54	Move emptiness check to the receivers.	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
Bjoern Rabenstein	ae70eac97d	Adjust the partitioning by outcome.	10 years ago
Bjoern Rabenstein	74c143c4c9	Improve scraper shutdown time. ... - Stop target pools in parallel. - Stop individual scrapers in goroutines, too. - Timing tweaks. Change-Id: I9dff1ee18616694f14b04408eaf1625d0f989696	10 years ago
Bjoern Rabenstein	443dd33805	Improve instrumentation in storage. ... Also, fix some other minor bugs. Change-Id: If72f1c058b0f47d3e378fdf80228d7e9a8db06c7	10 years ago
Bjoern Rabenstein	b3ed9aa7a2	Clean up start-up and shut-down. ... Change-Id: Idff4bbb0a15a9f879bfbb3da5b1025179cab5e2c	10 years ago
Bjoern Rabenstein	1909686789	Make metrics exported by the Prometheus server itself more consistent. ... - Always spell out the time unit (e.g. milliseconds instead of ms). - Remove "_total" from the names of metrics that are not counters. - Make use of the "Namespace" and "Subsystem" fields in the options. - Removed the "capacity" facet from all metrics about channels/queues. These are all fixed via command line flags and will never change during the runtime of a process. Also, they should not be part of the same metric family. I have added separate metrics for the capacity of queues as convenience. (They will never change and are only set once.) - I left "metric_disk_latency_microseconds" unchanged, although that metric measures the latency of the storage device, even if it is not a spinning disk. "SSD" is read by many as "solid state disk", so it's not too far off. (It should be "solid state drive", of course, but "metric_drive_latency_microseconds" is probably confusing.) - Brian suggested to not mix "failure" and "success" outcome in the same metric family (distinguished by labels). For now, I left it as it is. We are touching some bigger issue here, especially as other parts in the Prometheus ecosystem are following the same principle. We still need to come to terms here and then change things consistently everywhere. Change-Id: If799458b450d18f78500f05990301c12525197d3	10 years ago
Bjoern Rabenstein	8956faeccb	Migrate to new client_golang. ... This change will only be submitted when the new client_golang has been moved to the new version. Change-Id: Ifceb59333072a08286a8ac910709a8ba2e3a1581	10 years ago
Bjoern Rabenstein	257b720e87	Fix typo. ... Change-Id: I6e7edcb48ace7fe4d6de4ff16519da5bb326b6ce	11 years ago
Bjoern Rabenstein	caf47b2fbc	New encoding for OpenTSDB tag values (and metric names). ... Change-Id: I0f4393f638c6e2bb2b2ce14e58e38b49ce456da8	11 years ago
Bjoern Rabenstein	6bc083f38b	Major code cleanup in storage. ... - Mostly docstring fixed/additions. (Please review these carefully, since most of them were missing, I had to guess them from an outsider's perspective. (Which on the other hand proves how desperately required many of these docstrings are.)) - Removed all uses of new(...) to meet our own style guide (draft). - Fixed all other 'go vet' and 'golint' issues (except those that are not fixable (i.e. caused by bugs in or by design of 'go vet' and 'golint')). - Some trivial refactorings, like reorder functions, minor renames, ... - Some slightly less trivial refactoring, mostly to reduce code duplication by embedding types instead of writing many explicit forwarders. - Cleaned up the interface structure a bit. (Most significant probably the removal of the View-like methods from MetricPersistenc. Now they are only in View and not duplicated anymore.) - Removed dead code. (Probably not all of it, but it's a first step...) - Fixed a leftover in storage/metric/end_to_end_test.go (that made some parts of the code never execute (incidentally, those parts were broken (and I fixed them, too))). Change-Id: Ibcac069940d118a88f783314f5b4595dce6641d5	11 years ago
Julius Volz	61d26e8445	Add optional sample replication to OpenTSDB. ... Prometheus needs long-term storage. Since we don't have enough resources to build our own timeseries storage from scratch ontop of Riak, Cassandra or a similar distributed datastore at the moment, we're planning on using OpenTSDB as long-term storage for Prometheus. It's data model is roughly compatible with that of Prometheus, with some caveats. As a first step, this adds write-only replication from Prometheus to OpenTSDB, with the following things worth noting: 1) I tried to keep the integration lightweight, meaning that anything related to OpenTSDB is isolated to its own package and only main knows about it (essentially it tees all samples to both the existing storage and TSDB). It's not touching the existing TieredStorage at all to avoid more complexity in that area. This might change in the future, especially if we decide to implement a read path for OpenTSDB through Prometheus as well. 2) Backpressure while sending to OpenTSDB is handled by simply dropping samples on the floor when the in-memory queue of samples destined for OpenTSDB runs full. Prometheus also only attempts to send samples once, rather than implementing a complex retry algorithm. Thus, replication to OpenTSDB is best-effort for now. If needed, this may be extended in the future. 3) Samples are sent in batches of limited size to OpenTSDB. The optimal batch size, timeout parameters, etc. may need to be adjusted in the future. 4) OpenTSDB has different rules for legal characters in tag (label) values. While Prometheus allows any characters in label values, OpenTSDB limits them to a to z, A to Z, 0 to 9, -, _, . and /. Currently any illegal characters in Prometheus label values are simply replaced by an underscore. Especially when integrating OpenTSDB with the read path in Prometheus, we'll need to reconsider this: either we'll need to introduce the same limitations for Prometheus labels or escape/encode illegal characters in OpenTSDB in such a way that they are fully decodable again when reading through Prometheus, so that corresponding timeseries in both systems match in their labelsets. Change-Id: I8394c9c55dbac3946a0fa497f566d5e6e2d600b5	11 years ago