prometheus

Commit Graph

Author	SHA1	Message	Date
Paschalis Tsilias	d1122e0743	Introduce TSDB changes for appending metadata to the WAL (#10972 ) * Append metadata to the WAL Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Remove extra whitespace; Reword some docstrings and comments Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Use RLock() for hasNewMetadata check Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Use single byte for metric type in RefMetadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Update proposed WAL format for single-byte type metadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Implementa MetadataAppender interface for the Agent Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Address first round of review comments Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Amend description of metadata in wal.md Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Correct key used to retrieve metadata from cache When we're setting metadata entries in the scrapeCace, we're using the p.Help(), p.Unit(), p.Type() helpers, which retrieve the series name and use it as the cache key. When checking for cache entries though, we used p.Series() as the key, which included the metric name _with_ its labels. That meant that we were never actually hitting the cache. We're fixing this by utiling the __name__ internal label for correctly getting the cache entries after they've been set by setHelp(), setType() or setUnit(). Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Put feature behind a feature flag Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix AppendMetadata docstring Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Reorder WAL format document Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Change error message of AppendMetadata; Fix access of s.meta in AppendMetadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Reuse temporary buffer in Metadata encoder Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Only keep latest metadata for each refID during checkpointing Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix test that's referencing decoding metadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Avoid creating metadata block if no new metadata are present Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Add tests for corrupt metadata block and relevant record type Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix CR comments Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Extract logic about changing metadata in an anonymous function Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Implement new proposed WAL format and amend relevant tests Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Use 'const' for metadata field names Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Apply metadata to head memSeries in Commit, not in AppendMetadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Add docstring and rename extracted helper in scrape.go Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Add tests for tsdb-related cases Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix linter issues vol1 Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix linter issues vol2 Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix Windows test by closing WAL reader files Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Use switch instead of two if statements in metadata decoding Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix review comments around TestMetadata* tests Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Add code for replaying WAL; test correctness of in-memory data after a replay Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Remove scrape-loop related code from PR Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Address first round of comments Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Simplify tests by sorting slices before comparison Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix test to use separate transactions Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Empty out buffer and record slices after encoding latest metadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix linting issue Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Update calculation for DroppedMetadata metric Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Rename MetadataAppender interface and AppendMetadata method to MetadataUpdater/UpdateMetadata Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Reuse buffer when encoding latest metadata for each series Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Fix review comments; Check all returned error values using two helpers Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Simplify use of helpers Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Satisfy linter Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>	4 years ago
Bryan Boreham	4b9f248e85	unit tests: make all Labels sorted alphabetically (#10532 ) "Labels is a sorted set of labels. Order has to be guaranteed upon instantiation." says the comment, so fix all the tests that break this rule. For `BenchmarkLabelValuesWithMatchers()` and `BenchmarkHeadLabelValuesWithMatchers()` the amount of work done changes significantly if you put the labels in order, because all series refs get neatly partitioned by the `tens` label, so I renamed the labels to maintain the previous behaviour. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	4 years ago
Paschalis Tsilias	40c1efe8bc	tsdb/agent: Ignore duplicate exemplars (#10595 ) * tsdb/agent: Ignore duplicate exemplars Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Make each exemplar unique in TestCommit Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Re-Trigger CI for Windows and UI-related steps Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Change test comment to properly re-trigger pipeline Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com> * Defer Close() calls for test agent and segment reader Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>	4 years ago
Robert Fratto	286dfc70b7	tsdb/agent: port grafana/agent#676 (#10587 ) * tsdb/agent: port grafana/agent#676 grafana/agent#676 fixed an issue where a loading a WAL with multiple segments may result in ref ID collision. The starting ref ID for new series should be set to the highest ref ID across all series records from all WAL segments. This fixes an issue where the starting ref ID was incorrectly set to the highest ref ID found in the newest segment, which may not have any ref IDs at all if no series records have been appended to it yet. Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: update terminology (s/ref ID/nextRef) Signed-off-by: Robert Fratto <robertfratto@gmail.com>	4 years ago
chavacava	0b41fd6e71	Fix data races in WAL replay (#10571 ) Signed-off-by: chavacava <salvadorcavadini+github@gmail.com>	4 years ago
Łukasz Mierzwa	da23c4649a	Enable misspell check in golangci-lint (#10393 ) Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	4 years ago
cui fliter	c9b56d1a49	all: fix some typos (#10389 ) Signed-off-by: cuishuang <imcusg@gmail.com>	4 years ago
Robert Fratto	b71a6dbbd1	tsdb/agent: Fix deadlock from simultaneous GC and write (#10166 ) * tsdb/agent: Fix deadlock from simultaneous GC and write This commit fixes a potential deadlock where storing in-memory series references could deadlock with a WAL GC cycle. Signed-off-by: Robert Fratto <robertfratto@gmail.com> * add missing license header Signed-off-by: Robert Fratto <robertfratto@gmail.com> * order local imports Signed-off-by: Robert Fratto <robertfratto@gmail.com> * align deadlock testing with discovery/manager_test.go method Also prevents GCs from running concurrently, which could also cause a deadlock (even though it's currently impossible for two GCs to run concurrently). Signed-off-by: Robert Fratto <robertfratto@gmail.com>	4 years ago
Robert Fratto	4cbddb41eb	tsdb/agent: Synchronize appender code with grafana/agent main (#9664 ) * tsdb/agent: synchronize appender code with grafana/agent main This commit synchronize the appender code with grafana/agent main. This includes adding support for appending exemplars. Closes #9610 Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: fix build error Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: introduce some exemplar tests, refactor tests a little Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: address review feedback - Re-use hash when creating a new series - Fix typo in exemplar append error Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: remove unused AddFast method Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: close wal reader after test Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: add out-of-order tracking, change series TS in commit Signed-off-by: Robert Fratto <robertfratto@gmail.com> * address review feedback Signed-off-by: Robert Fratto <robertfratto@gmail.com>	5 years ago
Robert Fratto	72a9f7fee9	Share TSDB locker code with agent (#9623 ) * share tsdb db locker code with agent Closes #9616 Signed-off-by: Robert Fratto <robertfratto@gmail.com> * add flag to disable lockfile for agent Signed-off-by: Robert Fratto <robertfratto@gmail.com> * use agentOnlySetting instead of PreAction Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb: address review feedback 1. Rename Locker to DirLocker 2. Move DirLocker to tsdb/tsdbutil 3. Name metric using fmt.Sprintf 4. Refine error checking in DirLocker test Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb: create test utilities to assert expected DirLocker behavior Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/tsdbutil: fix lint errors Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: fix windows test failure Use new DB variable instead of overriding the old one. Signed-off-by: Robert Fratto <robertfratto@gmail.com>	5 years ago
Mateusz Gozdek	83086aee00	tsdb/agent: use unique registry per tests So tests can run in parallel. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	5 years ago
Levi Harrison	7400e07fa9	Close DB in Agent tests (#9630 ) * Close agent db in tests Signed-off-by: Levi Harrison <git@leviharrison.dev> * Close first DB before opening second Signed-off-by: Levi Harrison <git@leviharrison.dev> * Use seperate variables for different DBs? Signed-off-by: Levi Harrison <git@leviharrison.dev> * Close remote storage Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu> * Fix closing of stuff Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Remove the build flags after a rebase Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix closing of stuff 2 Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	5 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>	5 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>	5 years ago
Mateusz Gozdek	b7bdf6fab2	Fix imports formatting According to `2829908806 (r58457095)`. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	5 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>	5 years ago
Julien Pivotto	6e1d6edb33	Exclude agent from windows tests (#9645 ) We are aware of the issue, but while we are working on it, having main tests broken is an annoyance. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	5 years ago
Robert Fratto	bc72a718c4	Initial draft of prometheus-agent (#8785 ) * Initial draft of prometheus-agent This commit introduces a new binary, prometheus-agent, based on the Grafana Agent code. It runs a WAL-only version of prometheus without the TSDB, alerting, or rule evaluations. It is intended to be used to remote_write to Prometheus or another remote_write receiver. By default, prometheus-agent will listen on port 9095 to not collide with the prometheus default of 9090. Truncation of the WAL cooperates on a best-effort case with Remote Write. Every time the WAL is truncated, the minimum timestamp of data to truncate is determined by the lowest sent timestamp of all samples across all remote_write endpoints. This gives loose guarantees that data from the WAL will not try to be removed until the maximum sample lifetime passes or remote_write starts functionining. Signed-off-by: Robert Fratto <robertfratto@gmail.com> * add tests for Prometheus agent (#22) * add tests for Prometheus agent * add tests for Prometheus agent * rearranged tests as per the review comments * update tests for Agent * changes as per code review comments Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * incremental changes to prometheus agent Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * changes as per code review comments Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * Commit feedback from code review Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com> Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Port over some comments from grafana/agent Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Rename agent.Storage to agent.DB for tsdb consistency Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Consolidate agentMode ifs in cmd/prometheus/main.go Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Document PreAction usage requirements better for agent mode flags Signed-off-by: Robert Fratto <robertfratto@gmail.com> * remove unnecessary defaultListenAddr Signed-off-by: Robert Fratto <robertfratto@gmail.com> * `go fmt ./tsdb/agent` and fix lint errors Signed-off-by: Robert Fratto <robertfratto@gmail.com> Co-authored-by: SriKrishna Paparaju <paparaju@gmail.com>	5 years ago

19 Commits (ec7929aaa8ace4f894e9ccfa9a693679427105dc)