Fix transaction throttler ignoring the initial rate #12618

ejortegau · 2023-03-13T16:52:40Z

Description

This PR fixes an issue leading to the transaction throttler ignoring the initial rate parameter passed to it.

Related Issue(s)

#12549

Checklist

"Backport to:" labels have been added if this change should be back-ported
Tests were added or are not required
Did the new or modified tests pass consistently locally and on the CI
Documentation was added or is not required

Deployment Notes

N/A

This addresses the issue reported in vitessio#12549 Signed-off-by: Eduardo J. Ortega U <[email protected]>

vitess-bot · 2023-03-13T16:52:43Z

…r()` Signed-off-by: Eduardo J. Ortega U <[email protected]>

Signed-off-by: Eduardo J. Ortega U <[email protected]>

…rate Signed-off-by: Eduardo J. Ortega U. <[email protected]>

Signed-off-by: Eduardo J. Ortega U <[email protected]>

go/vt/vttablet/tabletserver/txthrottler/tx_throttler_test.go

shlomi-noach · 2023-03-16T15:40:28Z

go/vt/throttler/throttler.go

-	if maxReplicationLag < 0 {
-		return nil, fmt.Errorf("maxReplicationLag must be >= 0: %v", maxReplicationLag)
+	if maxRateModuleMaxRate < 0 {
+		return nil, fmt.Errorf("maxRate must be >= 0: %v", maxRateModuleMaxRate)
 	}


Was the maxReplicationLag sanity check removed intentionally? I believe we should keep validating that the value is non-negative?

Yes. this was removed intentionally. Instead, we call MaxReplicationLagModuleConfig.Verify() here, which already imposes stronger constraints on both target and max replication lag.

Signed-off-by: Eduardo J. Ortega U <[email protected]>

go/vt/vttablet/tabletserver/txthrottler/tx_throttler.go

Signed-off-by: Eduardo J. Ortega U <[email protected]>

shlomi-noach

LGTM

* Fix transaction throttler ignoring the initial rate This addresses the issue reported in vitessio#12549 Signed-off-by: Eduardo J. Ortega U <[email protected]> * Add missing override of max replication lag in `throttler.newThrottler()` Signed-off-by: Eduardo J. Ortega U <[email protected]> * Reorder functions to make diff easier to read Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix check for maxRate in `newThrottlerFromConfig()` Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix some CI pipeline issues Signed-off-by: Eduardo J. Ortega U <[email protected]> * Address PR comment. Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix typo Signed-off-by: Eduardo J. Ortega U <[email protected]> --------- Signed-off-by: Eduardo J. Ortega U <[email protected]> Signed-off-by: Eduardo J. Ortega U. <[email protected]>

* Add basic metrics to `vttablet` transaction throttler (vitessio#12418) * Add basic stats to vttablet tx throttler Signed-off-by: Tim Vaillancourt <[email protected]> * test new metrics Signed-off-by: Tim Vaillancourt <[email protected]> * reorder Signed-off-by: Tim Vaillancourt <[email protected]> * short names Signed-off-by: Tim Vaillancourt <[email protected]> * Add max rate Signed-off-by: Tim Vaillancourt <[email protected]> * Move NewGaugeFunc to under conditional Signed-off-by: Tim Vaillancourt <[email protected]> * Use env Signed-off-by: Tim Vaillancourt <[email protected]> * Remove env from TxThrottler struct Signed-off-by: Tim Vaillancourt <[email protected]> * Fix tests Signed-off-by: Tim Vaillancourt <[email protected]> * PR suggestion Signed-off-by: Tim Vaillancourt <[email protected]> * Fix unit test Signed-off-by: Tim Vaillancourt <[email protected]> * reorder test vars Signed-off-by: Tim Vaillancourt <[email protected]> --------- Signed-off-by: Tim Vaillancourt <[email protected]> * Fix transaction throttler ignoring the initial rate (vitessio#12618) * Fix transaction throttler ignoring the initial rate This addresses the issue reported in vitessio#12549 Signed-off-by: Eduardo J. Ortega U <[email protected]> * Add missing override of max replication lag in `throttler.newThrottler()` Signed-off-by: Eduardo J. Ortega U <[email protected]> * Reorder functions to make diff easier to read Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix check for maxRate in `newThrottlerFromConfig()` Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix some CI pipeline issues Signed-off-by: Eduardo J. Ortega U <[email protected]> * Address PR comment. Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix typo Signed-off-by: Eduardo J. Ortega U <[email protected]> --------- Signed-off-by: Eduardo J. Ortega U <[email protected]> Signed-off-by: Eduardo J. Ortega U. <[email protected]> * Cleanup panics in `txthrottler`, reorder for readability (vitessio#12901) * Cleanup tx_throttler.go Signed-off-by: Tim Vaillancourt <[email protected]> * Cleanup tx_throttler.go #2 Signed-off-by: Tim Vaillancourt <[email protected]> * Fix throttlerFactoryFunc Signed-off-by: Tim Vaillancourt <[email protected]> * Undo if-cond consolidation Signed-off-by: Tim Vaillancourt <[email protected]> * Undo struct shuffling Signed-off-by: Tim Vaillancourt <[email protected]> * prove that disabled config returns nil error Signed-off-by: Tim Vaillancourt <[email protected]> * Improve test Signed-off-by: Tim Vaillancourt <[email protected]> --------- Signed-off-by: Tim Vaillancourt <[email protected]> * Emit per workload labels for existing per table vttablet metrics (vitessio#12394) * Emit per workload labels for existing per table vttablet metrics This adds the possibility to configure vttablet (via CLI flag) to also have a workload label for existing per table metrics (query counts, query times, query errors, query rows affected, query rows returned, query error counts). Workload can be any string that makes sense for the client application. For example, API endpoint name, controller, batch job name, application name or something else. This is usefult to be able to gain observability about how the query load is distributed across different workloads. This is achieved with two new CLI flags, namely: * `enable-per-workload-table-metrics`: whether to enable or disable per workload metric collection - disabled by default to preserve the current behavior, thus making the new feature opt-in only. * `workload-label`: a string to look for in query comments to identify the workload running the current query. The workload is obtained by parsing query comments of the form: /* ... <workload_label>=<workload_name>; ... */ For example, if vttablet is started with `--enable-per-workload-table-metrics --workload-label app_name` anda query is issued with a comment like /* ... app_name=shop; ... */ then metrics will look like ``` vttablet_query_counts{plan="Select",table="dual", workload="shop"} 15479 ``` instead of ``` vttablet_query_counts{plan="Select",table="dual"} 15479 ``` Query comment parsing only takes place if `--enable-per-workload-table-metrics` is used, as to not incur parsing performance impact if the user does not want per workload metrics. Signed-off-by: Eduardo J. Ortega U <[email protected]> * make linter happy Signed-off-by: Eduardo J. Ortega U <[email protected]> * fix flags e2e test Signed-off-by: Eduardo J. Ortega U <[email protected]> * Address PR comments: * Obtain workload information on the vtgate instead of the vttablet, avoiding double parsing. * Treat workload name as a query directive. * Send workload name from vtgate to vttablet as ExecuteOptions. Additionally, annotate tabletserver's execution span with the workload name to also enrich traces with workload name data, in addition to metrics. Signed-off-by: Eduardo J. Ortega U <[email protected]> * A few fixes: 1. Rebuild some files with `make proto`. 2. Protect against nil ExecuteOptions on the tabletserver. Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix flags e2e test Signed-off-by: Eduardo J. Ortega U <[email protected]> * Address PR comments Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fixes Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix a comment Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix e2e flag test Signed-off-by: Eduardo J. Ortega U <[email protected]> * Update JS code for protobuf changes. Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix QueryEngine unit test Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix e2e flag test Signed-off-by: Eduardo J. Ortega U <[email protected]> * Fix spurious tab in comment Signed-off-by: Eduardo J. Ortega U <[email protected]> * Address PR comment Don't use dual format flag for new flags - stick with - separated ones. Signed-off-by: Eduardo J. Ortega U <[email protected]> --------- Signed-off-by: Eduardo J. Ortega U <[email protected]> * remove mistaken git add Signed-off-by: Tim Vaillancourt <[email protected]> * make vtadmin_web_proto_types Signed-off-by: Tim Vaillancourt <[email protected]> * test unit_race test on go-version: 1.18.9 Signed-off-by: Tim Vaillancourt <[email protected]> * Revert "test unit_race test on go-version: 1.18.9" This reverts commit 922e897. * CI: Misc test improvements to limit failures with various runners (vitessio#13825) Signed-off-by: Matt Lord <[email protected]> * Fix setup order to avoid races (vitessio#13871) Signed-off-by: Dirkjan Bussink <[email protected]> --------- Signed-off-by: Tim Vaillancourt <[email protected]> Signed-off-by: Eduardo J. Ortega U <[email protected]> Signed-off-by: Eduardo J. Ortega U. <[email protected]> Signed-off-by: Matt Lord <[email protected]> Signed-off-by: Dirkjan Bussink <[email protected]> Co-authored-by: Eduardo J. Ortega U <[email protected]> Co-authored-by: Matt Lord <[email protected]> Co-authored-by: Dirkjan Bussink <[email protected]>

Fix transaction throttler ignoring the initial rate

1744f05

This addresses the issue reported in vitessio#12549 Signed-off-by: Eduardo J. Ortega U <[email protected]>

vitess-bot bot added NeedsDescriptionUpdate The description is not clear or comprehensive enough, and needs work NeedsWebsiteDocsUpdate What it says labels Mar 13, 2023

ejortegau marked this pull request as ready for review March 13, 2023 16:52

ejortegau requested review from harshit-gangal, systay, shlomi-noach, rohit-nayak-ps and deepthi as code owners March 13, 2023 16:52

ejortegau added 4 commits March 13, 2023 17:54

Add missing override of max replication lag in `throttler.newThrottle…

e2cb501

…r()` Signed-off-by: Eduardo J. Ortega U <[email protected]>

Reorder functions to make diff easier to read

47ed606

Signed-off-by: Eduardo J. Ortega U <[email protected]>

Fix check for maxRate in newThrottlerFromConfig()

3fb8f96

Signed-off-by: Eduardo J. Ortega U <[email protected]>

Merge branch 'main' into ejortegau/fix_tx_throttler_ignoring_initial_…

b83fc7b

…rate Signed-off-by: Eduardo J. Ortega U. <[email protected]>

ejortegau marked this pull request as draft March 15, 2023 09:38

Fix some CI pipeline issues

e33d173

Signed-off-by: Eduardo J. Ortega U <[email protected]>

ejortegau marked this pull request as ready for review March 16, 2023 12:39

ajm188 reviewed Mar 16, 2023

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go/vt/vttablet/tabletserver/txthrottler/tx_throttler_test.go Outdated Show resolved Hide resolved

shlomi-noach reviewed Mar 16, 2023

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shlomi-noach added Type: Bug Component: TabletManager and removed NeedsDescriptionUpdate The description is not clear or comprehensive enough, and needs work NeedsWebsiteDocsUpdate What it says labels Mar 16, 2023

ejortegau requested review from shlomi-noach and removed request for deepthi, systay, harshit-gangal and rohit-nayak-ps March 20, 2023 08:43

Address PR comment.

fa04107

Signed-off-by: Eduardo J. Ortega U <[email protected]>

ejortegau removed the request for review from shlomi-noach March 20, 2023 12:41

ejortegau requested review from ajm188 and shlomi-noach and removed request for ajm188 March 20, 2023 12:41

timvaillancourt reviewed Mar 23, 2023

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go/vt/vttablet/tabletserver/txthrottler/tx_throttler.go Outdated Show resolved Hide resolved

Fix typo

3d22c19

Signed-off-by: Eduardo J. Ortega U <[email protected]>

harshit-gangal approved these changes Mar 24, 2023

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shlomi-noach approved these changes Mar 29, 2023

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shlomi-noach merged commit 39f83b9 into vitessio:main Mar 29, 2023

timvaillancourt mentioned this pull request Apr 16, 2024

slack-vitess-r15.0.5: backport required Transaction Throttler PRs slackhq/vitess#302

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timvaillancourt mentioned this pull request May 7, 2024

slack-vitess-r15.0.5: backport Transaction Throttler PRs, pt. 1 slackhq/vitess#335

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Fix transaction throttler ignoring the initial rate #12618

Fix transaction throttler ignoring the initial rate #12618

ejortegau commented Mar 13, 2023

vitess-bot bot commented Mar 13, 2023 •

edited by shlomi-noach

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shlomi-noach Mar 16, 2023 •

edited

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ejortegau Mar 20, 2023

shlomi-noach left a comment

Fix transaction throttler ignoring the initial rate #12618

Fix transaction throttler ignoring the initial rate #12618

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ejortegau commented Mar 13, 2023

Description

Related Issue(s)

Checklist

Deployment Notes

vitess-bot bot commented Mar 13, 2023 • edited by shlomi-noach Loading

Review Checklist

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If a new flag is being introduced:

If a workflow is added or modified:

Bug fixes

Non-trivial changes

New/Existing features

Backward compatibility

shlomi-noach Mar 16, 2023 • edited Loading

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vitess-bot bot commented Mar 13, 2023 •

edited by shlomi-noach

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