prometheus

Commit Graph

Author	SHA1	Message	Date
Matthieu MOREL	bae9a21200	Merge branch 'main' into linter/nilerr Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>	2 years ago
beorn7	5b53aa1108	style: Replace `else if` cascades with `switch` Wiser coders than myself have come to the conclusion that a `switch` statement is almost always superior to a statement that includes any `else if`. The exceptions that I have found in our codebase are just these two: * The `if else` is followed by an additional statement before the next condition (separated by a `;`). * The whole thing is within a `for` loop and `break` statements are used. In this case, using `switch` would require tagging the `for` loop, which probably tips the balance. Why are `switch` statements more readable? For one, fewer curly braces. But more importantly, the conditions all have the same alignment, so the whole thing follows the natural flow of going down a list of conditions. With `else if`, in contrast, all conditions but the first are "hidden" behind `} else if `, harder to spot and (for no good reason) presented differently from the first condition. I'm sure the aforemention wise coders can list even more reasons. In any case, I like it so much that I have found myself recommending it in code reviews. I would like to make it a habit in our code base, without making it a hard requirement that we would test on the CI. But for that, there has to be a role model, so this commit eliminates all `if else` occurrences, unless it is autogenerated code or fits one of the exceptions above. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
Matthieu MOREL	fb3eb21230	enable gocritic, unconvert and unused linters Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>	2 years ago
Arve Knudsen	bc9a82f5a1	remote: Improve some comments (#12102 ) Improve some comments in storage/remote/queue_manager.go, wrt. general language and a typo. Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	2 years ago
Arve Knudsen	435b500de7	remote: Convert to RecoverableError using errors.As (#12103 ) In storage/remote, try converting to RecoverableError using errors.As, instead of through direct casting. Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	2 years ago
Julien Pivotto	475f9984d0	Merge pull request #11787 from damnever/perf/avoid-alloc-if-no-externallabels Avoid allocation during remote write if external labels is empty	2 years ago
Marc Tudurí	721f33dbb0	histograms: Add remote-write support for Float Histograms (#11817 ) * adapt code.go and write_handler.go to support float histograms * adapt watcher.go to support float histograms * wip adapt queue_manager.go to support float histograms * address comments for metrics in queue_manager.go * set test cases for queue manager * use same counts for histograms and float histograms * refactor createHistograms tests * fix float histograms ref in watcher_test.go * address PR comments Signed-off-by: Marc Tuduri <marctc@protonmail.com>	2 years ago
Xiaochao Dong (@damnever)	2d61d012ff	Avoid copy during remote write if external labels is empty Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>	2 years ago
Bryan Boreham	abd9909595	Update package storage/remote for new labels.Labels type `QueueManager.externalLabels` becomes a slice rather than a `Labels` so we can index into it when doing the merge operation. Note we avoid calling `Labels.Len()` in `labelProtosToLabels()`. It isn't necessary - `append()` will enlarge the buffer and we're expecting to re-use it many times. Also, we now validate protobuf input before converting to Labels. This way we can detect errors first, and we don't place unnecessary requirements on the Labels structure. Re-do seriesFilter using labels.Builder (albeit N^2). Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Ganesh Vernekar	648be89822	Merge remote-tracking branch 'upstream/main' into fix-conflict Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	2 years ago
Jesus Vazquez	775d90d5f8	TSDB: Rename wal package to wlog (#11352 ) The wlog.WL type can now be used to create a Write Ahead Log or a Write Behind Log. Before the prefix for wbl metrics was 'prometheus_tsdb_out_of_order_wal_' and has been replaced with 'prometheus_tsdb_out_of_order_wbl_'. Signed-off-by: Jesus Vazquez <jesus.vazquez@grafana.com> Signed-off-by: Jesus Vazquez <jesusvazquez@users.noreply.github.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	2 years ago
Ganesh Vernekar	f540c1dbd3	Add support for histograms in WAL checkpointing (#11210 ) * Add support for histograms in WAL checkpointing Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix review comments Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix tests Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	2 years ago
Levi Harrison	0db6b072bc	Export `histogramToHistogramProto()` (#11046 ) Signed-off-by: Levi Harrison <git@leviharrison.dev>	2 years ago
Levi Harrison	08f3ddb864	Sparse histogram remote-write support (#11001 )	2 years ago
Matej Gera	1dd247f68b	Remote Write: Rename confusing `walDir` parameter to `dir` (#10464 ) * Rename walDir parameter to dir Signed-off-by: Matej Gera <matejgera@gmail.com> * Improve NewQueueManager comment Signed-off-by: Matej Gera <matejgera@gmail.com>	3 years ago
Chris Marchbanks	a11e73edda	Fix a deadlock between Batch and FlushAndShutdown (#10608 ) If FlushAndShutdown is called with a full batchQueue, and then Batch is called rather than the normal path of reading from a queue a deadlock might be encountered. Rather than having FlushAndShutdown having blocking code while holding a lock retry sending the batch every second. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	3 years ago
beorn7	79376c1e94	Merge branch 'release-2.33' into beorn7/release	3 years ago
Chris Marchbanks	e970acb085	Fix deadlock between adding to queue and getting batch Do not block when trying to write a batch to the queue. This can cause appends to lock forever if the only thing reading from the queue needs the mutex to write. Instead, if batchQueue is full pop the sample that was just added from the partial batch and return false. The code doing the appending already handles retries with backoff. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	3 years ago
Julien Pivotto	b0d70557b7	Merge pull request #10285 from prometheus/release-2.33	3 years ago
Chris Marchbanks	bfb1500a38	Fix deadlock when stopping a shard (#10279 ) If a queue is stopped and one of its shards happens to hit the batch_send_deadline at the same time a deadlock can occur where stop holds the mutex and will not release it until the send is finished, but the send needs the mutex to retrieve the most recent batch. This is fixed by using a second mutex just for writing. In addition, the test I wrote exposed a case where during shutdown a batch could be sent twice due to concurrent calls to queue.Batch() and queue.FlushAndShutdown(). Protect these with a mutex as well. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	3 years ago
Matej Gera	2c61d29b2a	Tracing: Migrate to OpenTelemetry library (#9724 ) Signed-off-by: Matej Gera <matejgera@gmail.com>	3 years ago
Bryan Boreham	954c0e8020	remote_write: round desired shards up before check Previously we would reject an increase from 2 to 2.5 as being within 30%; by rounding up first we see this as an increase from 2 to 3. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Bryan Boreham	6d01ce8c4d	remote_write: shard up more when backlogged Change the coefficient from 1% to 5%, so instead of targetting to clear the backlog in 100s we target 20s. Update unit test to reflect the new behaviour. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Goutham Veeramachaneni	6696b7a5f0	Don't update metrics on context cancellation Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>	3 years ago
Goutham Veeramachaneni	1af81dc5c9	Update sent timestamp when write irrecoverably fails. We have an alert that fires when prometheus_remote_storage_highest_timestamp_in_seconds - prometheus_remote_storage_queue_highest_sent_timestamp_seconds becomes too high. But we have an agent that fires this when the remote "rate-limits" the user. This is because prometheus_remote_storage_queue_highest_sent_timestamp_seconds doesn't get updated when the remote sends a 429. I think we should update the metrics, and the change I made makes sense. Because if the requests fails because of connectivity issues, etc. we will never exit the `sendWriteRequestWithBackoff` function. It only exits the function when there is a non-recoverable error, like a bad status code, and in that case, I think the metric needs to be updated. Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>	3 years ago
Bryan Boreham	bd6436605d	Review feedback Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Bryan Boreham	50878ebe5e	remote-write: buffer struct instead of interface This reduces the amount of individual objects allocated, allowing sends to run a bit faster. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Chris Marchbanks	c655684142	Subtract from enqueued samples/exemplars upon send Right now the values for enqueuedSamples and enqueuedExemplars is never subtracted leading to inflated values for failedSamples/failedExemplars when a hard shutdown of a shard occurs. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	3 years ago
Chris Marchbanks	319249f9db	Batch samples before sending them to channels Channels can cause bottlenecks and tons of context switches when reading hundreds of thousands of samples per second from a single queue. Instead, pre-batch the samples to amortize the cost of the concurrency overhead. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	3 years ago
Hu Shuai	eb43437d83	Fix golint issue (#9800 ) Signed-off-by: Hu Shuai <hus.fnst@fujitsu.com>	3 years ago
beorn7	c954cd9d1d	Move packages out of deprecated pkg directory This creates a new `model` directory and moves all data-model related packages over there: exemplar labels relabel rulefmt textparse timestamp value All the others are more or less utilities and have been moved to `util`: gate logging modetimevfs pool runtime Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
Dieter Plaetinck	cda025b5b5	TSDB: demistify SeriesRefs and ChunkRefs (#9536 ) * TSDB: demistify seriesRefs and ChunkRefs The TSDB package contains many types of series and chunk references, all shrouded in uint types. Often the same uint value may actually mean one of different types, in non-obvious ways. This PR aims to clarify the code and help navigating to relevant docs, usage, etc much quicker. Concretely: * Use appropriately named types and document their semantics and relations. * Make multiplexing and demuxing of types explicit (on the boundaries between concrete implementations and generic interfaces). * Casting between different types should be free. None of the changes should have any impact on how the code runs. TODO: Implement BlockSeriesRef where appropriate (for a future PR) Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * agent: demistify seriesRefs and ChunkRefs Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
sniper	f82e56fbba	fix request bytes size and continue is useless (#9635 ) Signed-off-by: kalmanzhao <kalmanzhao@tencent.com> Co-authored-by: kalmanzhao <kalmanzhao@tencent.com>	3 years ago
Mateusz Gozdek	b7bdf6fab2	Fix imports formatting According to `2829908806 (r58457095)`. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Mateusz Gozdek	1a6c2283a3	Format Go source files using 'gofumpt -w -s -extra' Part of #9557 Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Bryan Boreham	5afa606ecb	Remote-write: reuse memory for marshalling (#9412 ) By holding a `proto.Buffer` per shard and passing it down to where marshalling is done, we avoid creating a lot of garbage. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Levi Harrison	fac1b57334	Remove Individual Data Type Caps in Per-shard Buffering for Remote Write (#8921 ) * Moved everything to nPending buffer Signed-off-by: Levi Harrison <git@leviharrison.dev> * Simplify exemplar capacity addition Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added pre-allocation Signed-off-by: Levi Harrison <git@leviharrison.dev> * Don't allocate if not sending exemplars Signed-off-by: Levi Harrison <git@leviharrison.dev>	3 years ago
Bryan Boreham	60804c5a09	remote_write: reduce blocking from garbage-collect of series (#9109 ) * Refactor: pass segment-reading function as param To allow a different implementation to be used when garbage-collecting. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * remote_write: reduce blocking from GC of series Add a method `UpdateSeriesSegment()` which is used together with `SeriesReset()` to garbage-collect old series. This allows us to split the lock around queueManager series data and avoid blocking `Append()` while reading series from the last checkpoint. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Cosmetic: review feedback on comments Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * remote-write benchmark: include GC of series Reduce the total number of samples per iteration from 50005000 (25 million) which is too big for my laptop, to 110000. Extend `createTimeseries()` to add additional labels, so that the queue manager is doing more realistic work. Move the Append() call to a background goroutine - this works because TestWriteClient uses a WaitGroup to signal completion. Call `StoreSeries()` and `SeriesReset()` while adding samples, to simulate the garbage-collection that wal.Watcher does. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Change BenchmarkSampleDelivery to call UpdateSeriesSegment This matches what Watcher.garbageCollectSeries() is doing now Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Levi Harrison	d5c3c567d3	Remote Write: Add max samples per metadata send (#8959 ) * Added MaxSamplesPerSend Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added tests Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed order of require Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added docs Signed-off-by: Levi Harrison <git@leviharrison.dev> * writes -> writesReceived Signed-off-by: Levi Harrison <git@leviharrison.dev> * Improved send loop Signed-off-by: Levi Harrison <git@leviharrison.dev>	3 years ago
Levi Harrison	b5f6f8fb36	Switched to go-kit/log Signed-off-by: Levi Harrison <git@leviharrison.dev>	4 years ago
songjiayang	9a01472780	Refactor processExternalLabels method with slice copy for left labels Signed-off-by: songjiayang <songjiayang1@gmail.com>	4 years ago
Callum Styan	8fd73b1d28	Add Exemplar Remote Write support (#8296 ) * Write exemplars to the WAL and send them over remote write. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Update example for exemplars, print data in a more obvious format. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Add metrics for remote write of exemplars. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Fix incorrect slices passed to send in remote write. Signed-off-by: Callum Styan <callumstyan@gmail.com> * We need to unregister the new metrics. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address review comments Signed-off-by: Callum Styan <callumstyan@gmail.com> * Order of exemplar append vs write exemplar to WAL needs to change. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Several fixes to prevent sending uninitialized or incorrect samples with an exemplar. Fix dropping exemplar for missing series. Add tests for queue_manager sending exemplars Signed-off-by: Martin Disibio <mdisibio@gmail.com> * Store both samples and exemplars in the same timeseries buffer to remove the alloc when building final request, keep sub-slices in separate buffers for re-use Signed-off-by: Martin Disibio <mdisibio@gmail.com> * Condense sample/exemplar delivery tests to parameterized sub-tests Signed-off-by: Martin Disibio <mdisibio@gmail.com> * Rename test methods for clarity now that they also handle exemplars Signed-off-by: Martin Disibio <mdisibio@gmail.com> * Rename counter variable. Fix instances where metrics were not updated correctly Signed-off-by: Martin Disibio <mdisibio@gmail.com> * Add exemplars to LoadWAL benchmark Signed-off-by: Callum Styan <callumstyan@gmail.com> * last exemplars timestamp metric needs to convert value to seconds with ms precision Signed-off-by: Callum Styan <callumstyan@gmail.com> * Process exemplar records in a separate go routine when loading the WAL. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address review comments related to clarifying comments and variable names. Also refactor sample/exemplar to enqueue prompb types. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Regenerate types proto with comments, update protoc version again. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Put remote write of exemplars behind a feature flag. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address some of Ganesh's review comments. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Move exemplar remote write feature flag to a config file field. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address Bartek's review comments. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Don't allocate exemplar buffers in queue_manager if we're not going to send exemplars over remote write. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Add ValidateExemplar function, validate exemplars when appending to head and log them all to WAL before adding them to exemplar storage. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address more reivew comments from Ganesh. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Add exemplar total label length check. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address a few last review comments Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Martin Disibio <mdisibio@gmail.com>	4 years ago
Harkishen Singh	cd412470d7	Consider status code 429 as recoverable errors to avoid resharding (#8237 ) * Consider status code 429 as recoverable errors to avoid resharding. * Adds support for Retry-After in backoff logic in remote storage. Signed-off-by: Harkishen-Singh <harkishensingh@hotmail.com>	4 years ago
fuling	4a407210f5	[remote storage] remove sendWriteRequestWithBackoff() "s" and "req" param Signed-off-by: fuling <fuling.lgz@alibaba-inc.com>	4 years ago
Chris Marchbanks	275f7e7766	Log recoverable remote write errors as warnings (#8412 ) Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	4 years ago
kevinForMyself	db445844d3	Fix garbage collection about t.droppedSeries in QueueManager.SeriesReset. (#8387 ) * Fix memory leak about t.droppedSeries in QueueManager.SeriesReset. Signed-off-by: kevinForMyself <zise_2001@163.com> * Fix garbage collection about t.droppedSeries in QueueManager.SeriesReset Signed-off-by: kevinForMyself <zise_2001@163.com>	4 years ago
gotjosh	4eca4dffb8	Allow metric metadata to be propagated via Remote Write. (#6815 ) * Introduce a metadata watcher Similarly to the WAL watcher, its purpose is to observe the scrape manager and pull metadata. Then, send it to a remote storage. Signed-off-by: gotjosh <josue@grafana.com> * Additional fixes after rebasing. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Rework samples/metadata metrics. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Use more descriptive variable names in MetadataWatcher collect. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Fix issues caused during rebasing. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Fix missing metric add and unneeded config code. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Address some review comments. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Fix metrics and docs Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Replace assert with require Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Bring back max_samples_per_send metric Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix tests Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> Co-authored-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Jorge Luis Betancourt	4dc755cd27	Add a metric for tracking max_samples_per_send (#8102 ) Currently there is no way of tracking the value of the `max_samples_per_send` configuration option, which is commonly tweaked when integrating with a remote write backend. Signed-off-by: Jorge Luis Betancourt Gonzalez <jorge-luis.betancourt@trivago.com>	4 years ago
Julien Pivotto	4e5b1722b3	Move away from testutil, refactor imports (#8087 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Julien Pivotto	8c9850c2bb	Remote: Do not collect non-initialized timestamp metrics (#8060 ) * Remote: Do not collect non-initialized timestamp metrics Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago

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164 Commits (bfa466d00f152aa8dd58494c171872d7f95e3d5e)