prometheus

Commit Graph

Author	SHA1	Message	Date
Callum Styan	c2b88992a3	Remote Write: fix checkpoint reading (#5429 ) * 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>	6 years ago
Tariq Ibrahim	8fdfa8abea	refine error handling in prometheus (#5388 ) 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>	6 years ago
Tom Wilkie	807fd33ecc	Review feedback. - Update read path to use labels.Labels. - Fix the tests. - Remove pack. - Remove unused function. - Fix race in tests. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	1a7923dde3	Add ref counting to string interning so we can remove a string when there are no longer any refs. Add tests for interning. Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com> Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Tom Wilkie	cbf5f13285	Naive string iterning for labes & values in the remote_write path. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	c7b3535997	Use pkg/relabelling in remote write. - Unmarshall external_labels config as labels.Labels, add tests. - Convert some more uses of model.LabelSet to labels.Labels. - Remove old relabel pkg (fixes #3647). - Validate external label names. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	2fa93595d6	More WAL remote_write tweaks. (#5300 ) * Consistently pre-lookup the metrics for a given queue in queue manager. * Don't open the WAL (for writing) in the remote_write code. * Add some more logging. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Krasi Georgiev	1684dc750a	updated tsdb to 0.6.0 (#5292 ) * updated tsdb to 0.6.0 as part of the update also added the new storage.tsdb.allow-overlapping-blocks flag and mark it as experimental.	6 years ago
Tariq Ibrahim	1adb91738d	fix typo in recordType method of wal_watcher.go (#5297 ) Signed-off-by: tariqibrahim <tariq181290@gmail.com>	6 years ago
Tariq Ibrahim	ab8e9b7423	fix typo in queue_manager.go comment (#5294 ) Signed-off-by: tariqibrahim <tariq181290@gmail.com>	6 years ago
Tom Wilkie	67da8e7b46	Refactor and fix queue resharding (#5286 ) - Remove prometheus_remote_queue_last_send_timestamp_seconds metric. Its not particularly useful, we have highest_timestamp_seconds. - Factor out maxGauage, a gauge that only increases. - Change sharding calculations to use max samples in timestamp - max samples out timestamp (not rates). - Also include the ratio of samples dropped to correctly predict number of pending samples. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	b8106dd459	Review feedback: - Add a dropped samples EWMA and use it in calculating desired shards. - Update metric names and a log messages. - Limit number of entries in the dedupe logging middleware to prevent potential OOM. Signed-off-by: Callum Styan <callumstyan@gmail.com> Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	512f549064	Refactor: inline decodeRecord in readSegment and don't bother decoding samples records if we're not tailing the segment, add a benchmark test and fix some other tests Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com> Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Tom Wilkie	f795942572	Decrement pending sample when queue exits. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	ee7efa93fe	Fix some tests. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	b69bdfb4d1	Store the checkpoint we read last, so that we don't keep reading the same checkpoint on each tick. Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Tom Wilkie	efbd9559f4	Deal with corruptions in the WAL: - If we're replaying the WAL to get series records, skip that segment when we hit corruptions. - If we're tailing the WAL for samples, fail the watcher. - When the watcher fails, restart from the latest checkpoint - and only send new samples by updating startTime. - Tidy up log lines and error handling, don't return so many errors on quiting. - Expect EOF when processing checkpoints. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	adf5307470	Update wal LiveReader to ensure EOF is correctly propagated. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	d6258aea8f	Fix up remote write tests: - Tests that created a QueueManager were leaving behind files at the end of tests. - WAL replaying (readToEnd)tests seem to require extra time to finish now. - Some fixes to make staticcheck happy Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Tom Wilkie	184f06a981	Combine the record decoding metrics into one; break out garbage collection into a separate function. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	859cda27ff	Remove some 'global' state, moving segment numbers to parameters. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	bdc6b764b0	If reading the WAL fails, try again. Also, read from the segment containing the index for the last checkpoint, not the first segment. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	d6f911b511	Factor out logging ratelimit & dedupe middleware. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	a5c20642b3	Refactor WAL watcher to remove some duplication. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Tom Wilkie	37ad4db485	Export timestamps in seconds since epoch. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
JoeWrightss	362873f72b	Fix .Log() error message (#5257 ) Signed-off-by: zhoulin xie <zhoulin.xie@daocloud.io>	6 years ago
Simon Pasquier	b41d6d54f2	storage/remote: increase timeouts for Travis CI (#5224 ) * storage/remote: adapt tests for Travis CI Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Check filesystems on Travis environment Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Run remote/storage tests on CircleCI for troubleshooting Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Try using tmpfs partition Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Revert "Try using tmpfs partition" This reverts commit `85a30deb72`. Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Don't store labels in writeToMock Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Fix data race Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Bump retries to 100 meaning that the total timeout is 10s Signed-off-by: Simon Pasquier <spasquie@redhat.com> * clean up .travis.yml Signed-off-by: Simon Pasquier <spasquie@redhat.com> * code fixup Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Remove unneeded empty line Signed-off-by: Simon Pasquier <spasquie@redhat.com>	6 years ago
Callum Styan	37e35f9e0c	Various improvements to WAL based remote write. - Use the queue name in WAL watcher logging. - Don't return from watch if the reader error was EOF. - Fix sample timestamp check logic regarding what samples we send. - Refactor so we don't need readToEnd/readSeriesRecords - Fix wal_watcher tests since readToEnd no longer exists Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Tom Wilkie	b93bafeee1	Various fixes to locking & shutdown for WAL-based remote write. - Remove datarace in the exported highest scrape timestamp. - Backoff on enqueue should be per-sample - reset the result for each sample. - Remove diffKeys, unused ctx and cancelfunc in WALWatcher, 'name' from writeTo interface, and pass it to constructor. - Reorder functions in WALWatcher depth-first according to call graph. - Fix vendor/modules.txt. - Split out the various timer periods into consts at the top of the file. - Move w.currentSegmentMetric.Set close to where we set the currentSegment. - Combine r.Next() and isClosed(w.quit) into a single loop. - Unnest some ifs in WALWatcher.watch, propagate erros in decodeRecord, add some new lines to make it easier to read. - Reorganise checkpoint handling to reduce nesting and make it easier to follow. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
Callum Styan	6f69e31398	Tail the TSDB WAL for remote_write This change switches the remote_write API to use the TSDB WAL. This should reduce memory usage and prevent sample loss when the remote end point is down. We use the new LiveReader from TSDB to tail WAL segments. Logic for finding the tracking segment is included in this PR. The WAL is tailed once for each remote_write endpoint specified. Reading from the segment is based on a ticker rather than relying on fsnotify write events, which were found to be complicated and unreliable in early prototypes. Enqueuing a sample for sending via remote_write can now block, to provide back pressure. Queues are still required to acheive parallelism and batching. We have updated the queue config based on new defaults for queue capacity and pending samples values - much smaller values are now possible. The remote_write resharding code has been updated to prevent deadlocks, and extra tests have been added for these cases. As part of this change, we attempt to guarantee that samples are not lost; however this initial version doesn't guarantee this across Prometheus restarts or non-retryable errors from the remote end (eg 400s). This changes also includes the following optimisations: - only marshal the proto request once, not once per retry - maintain a single copy of the labels for given series to reduce GC pressure Other minor tweaks: - only reshard if we've also successfully sent recently - add pending samples, latest sent timestamp, WAL events processed metrics Co-authored-by: Chris Marchbanks <csmarchbanks.com> (initial prototype) Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com> (sharding changes) Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Goutham Veeramachaneni	384cba1211	Add flag for size based retention (#5109 ) * Add flag for size based retention Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com> * Deprecate the old retention flag for a new one. Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com> * Add ability to take a suffix for size flag Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com> * Address feedback Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>	6 years ago
Krasi Georgiev	3bd41cc92c	Udpate tsdb to 0.4 (#5110 ) * update tsdb to v0.4.0 Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com> * remove unused struct field Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>	6 years ago
Matt Layher	302148fd69	*: apply gofmt -s Signed-off-by: Matt Layher <mdlayher@gmail.com>	6 years ago
Callum Styan	5358f76c5c	update remote write path proto so that Labels/Timeseries can't be nil (#4957 ) Signed-off-by: Callum Styan <callumstyan@gmail.com>	6 years ago
Simon Pasquier	f678e27eb6	: use latest release of staticcheck (#5057 ) : use latest release of staticcheck It also fixes a couple of things in the code flagged by the additional checks. Signed-off-by: Simon Pasquier <spasquie@redhat.com> Use official release of staticcheck Also run 'go list' before staticcheck to avoid failures when downloading packages. Signed-off-by: Simon Pasquier <spasquie@redhat.com>	6 years ago
glutamatt	5ddde1965b	tune the "Wal segment size" with a flag (#5029 ) Add WALSegmentSize as an option, and the corresponding flag "storage.tsdb.wal-segment-size" to tune the max size of wal segment files. The addressed base problem is to reduce the disk space used by wal segment files : on a raspberry pi, for instance, we often want to reduce write load of the sd card, then, the wal directory is mounted on a memory (space limited) partition. the default value of the segment max file size, pushed the size of directory to 128 MB for each segment , which is too much ram consumption on a rasp. the initial discussion is at https://github.com/prometheus/tsdb/pull/450	6 years ago
Tom Wilkie	6e08029b56	Move err to be the last return value from storage.Select. (#5054 ) Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	6 years ago
AixesHunter	806632790e	update inconsistent comment (#5046 ) Co-Authored-By: aixeshunter <44970652+aixeshunter@users.noreply.github.com> Signed-off-by: aixeshunter <aixeshunter@gmail.com>	6 years ago
Bartek Płotka	62c8337e77	Moved configuration into `relabel` package. (#4955 ) Adapted top dir relabel to use pkg relabel structs. Removal of this in a separate tracked here: https://github.com/prometheus/prometheus/issues/3647 Signed-off-by: Bartek Plotka <bwplotka@gmail.com>	6 years ago
Alin Sinpalean	44bec482fb	Minor optimization for BufferedSeriesIterator: actually drop the samples falling outside of the new delta from the underlying sampleRing, when ReduceDelta is called. (#4849 ) Signed-off-by: Alin Sinpalean <alin.sinpalean@gmail.com>	6 years ago
Alin Sinpalean	d6adfe2ae2	Use a fake SeriesIterator (that generates samples on the fly instead of using a slice) for BufferedSeriesIterator, to reduce the variance of benchmark results due to memory pressure. (#4847 ) Signed-off-by: Alin Sinpalean <alin.sinpalean@gmail.com>	6 years ago
Ryota Arai	135d580ab2	Introduce min_shards for remote write to set minimum number of shards. (#4924 ) Signed-off-by: Ryota Arai <ryota.arai@gmail.com>	6 years ago
mknapphrt	f0e9196dca	Return warnings on a remote read fail (#4832 ) Signed-off-by: Mark Knapp <mknapp@hudson-trading.com>	6 years ago
Ben Kochie	c6399296dc	Fix spelling/typos (#4921 ) * Fix spelling/typos Fix spelling/typos reported by codespell/misspell. * UK -> US spelling changes. Signed-off-by: Ben Kochie <superq@gmail.com>	6 years ago
Daniele Sluijters	f25a6baedb	remote: Set User-Agent header in requests (#4891 ) Currently Prometheus requests show up with a UA of Go-http-client/1.1 which isn't super helpful. Though the X-Prometheus-Remote-* headers exist they need to be explicitly configured when logging the request in order to be able to deduce this is a request originating from Prometheus. By setting the header we remove this ambiguity and make default server logs just a bit more useful. This also updates a few other places to consistently capitalize the 'P' in the user agent, as well as ensure we set a UA to begin with. Signed-off-by: Daniele Sluijters <daenney@users.noreply.github.com>	6 years ago
Krasi Georgiev	bd100182b2	added tsdb/head mint maxt metrics (#4888 ) added the head metrics with the correct suffix. Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>	6 years ago
Simon Pasquier	ed19373a78	: remove use of golang.org/x/net/context (#4869 ) : remove use of golang.org/x/net/context Signed-off-by: Simon Pasquier <spasquie@redhat.com> scrape: fix TestTargetScrapeScrapeCancel Signed-off-by: Simon Pasquier <spasquie@redhat.com>	6 years ago
Ganesh Vernekar	ca93fd544b	/api/v1/labels endpoint for getting all label names (#4835 ) * vendor: update tsdb Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * /api/v1/labels endpoint Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * regex matchers for API Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Add docs Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Matchers behaving as OR Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Removed the matchers Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * vendor: update tsdb using go mod Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * vendor update: tsdb Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Added LabelNames() to storage.Querier Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Test for api.labelNames Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Nits Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	6 years ago
fengyuceNv	94fff219ab	improve remote storage enqueue performance (#4772 ) Signed-off-by: fyc <fyc22788@ly.com>	6 years ago
Tariq Ibrahim	3f7ed7de49	Adding new metric type to track in-flight remote read queries. (#4677 ) Signed-off-by: tariqibrahim <tariq.ibrahim@microsoft.com>	6 years ago

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959 Commits (8dfd829fefc4e3124f717e6d969549945ee18320)