feat(pubsub): add publish telemetry headers for publish attempt observability - #14338

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tonyyyycui wants to merge 50 commits into

googleapis:mainfrom

tonyyyycui:publish-telemetry-header

Commits on Jul 13, 2026

Add hedgeSettings with configurable hedgeDelay
Tony Cui
committed
61d0b60
Add HedgeTokenBucket class to allow for token operations
Tony Cui
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19afd68
Add publisher integration with HedgeSettings
Tony Cui
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49426a9
Restore original @Ignore annotations and code in PublisherImplTest
Tony Cui
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22417d1
style(pubsub): fix checkstyle violations in HedgeSettings
Tony Cui
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91706a2
style(pubsub): fix formatting and checkstyle violations in HedgeSettings and tests
Tony Cui
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bd76ede
Merge branch 'main' into publish-hedging-settings
tonyyyycui
authored
61aef08

Commits on Jul 20, 2026

Resolve git comments related to access modifiers and constraints
Tony Cui
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227f808
Add CancellationSharer and HedgedRequest helper classes
Tony Cui
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e29eab8
Integrate CancellationSharer and HedgedRequest into Publisher.java. Also add Unit tests
Tony Cui
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ed05c60
fix lint
Tony Cui
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23b8432
Modifying comment line
Tony Cui
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3a23d60

Commits on Jul 27, 2026

Modified default values, added configurable settings to refill ratio and maxtokens, updated tests.
Tony Cui
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da4307e
Removed HedgeTokenBucket.java class in favor of using an atomicinteger for hedgeTokenBucket. Also added HEDGE_TOKEN_SCALE.
Tony Cui
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336c809
Add documentation for scaling and remove unused getAttemptCount() in CancellationSharer.java
Tony Cui
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59a7a09
Added method overloading to handle OTel span for hedged publish events
Tony Cui
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79411a8
Verify that the per-RPC timeout is strictly greater than the hedging delay
Tony Cui
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e545cd6
Moved static methods in Publisher.java above the builder
Tony Cui
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8543d23
Configure empty token bucket and fix naming
Tony Cui
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3c48a1a
Change from synchronization to actual lock object for processQueue method
Tony Cui
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0929a1b

Commits on Jul 28, 2026

Add header injection for hedged publish requests
Tony Cui
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0295144
Cleanup code and fix bug with handling failure attempts in the first rpc call
Tony Cui
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c8296f5
Disable retries for failing rpcs when publish hedging
Tony Cui
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c8fd6e9

Commits on Jul 30, 2026

Change how cancellationSharer propagates cancellations for different failure codes
Tony Cui
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0b88e33
Fixing race condition in unit test setup
Tony Cui
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b6af015
Merge branch 'main' into publish-hedging-settings
tonyyyycui
authored
be69b98

Commits on Jul 31, 2026

Modify header to use an integer count instead of a bool
Tony Cui
committed
1a4644f
Merge branch 'publish-hedging-settings' of github.com:tonyyyycui/google-cloud-java into publish-hedging-settings
Tony Cui
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e87c26f
Fix lint
Tony Cui
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dd288c7

Commits on Aug 4, 2026

Modify scale factor and minimum refillRatio value. Add test annotation to publisher
Tony Cui
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8885dc2
Update scale factor, refill ratio constraints, and simplify token bucket operations
Tony Cui
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2eb687f
Rename HedgeSettings to HedgingSettings
Tony Cui
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100db18
Inline the hedging attempt count headers map creation
Tony Cui
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ba05985
Added new subsystem to loggerUtil and adjusted logging usage
Tony Cui
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97820e7
Add debugging for token bucket rate limiting
Tony Cui
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58a4f70
Add publish end (hedged) event as well
Tony Cui
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7361f15
Add synchronized locking to resolve race condition in cancellationsharer
Tony Cui
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52a7cb3

Commits on Aug 5, 2026

Clean up unused memory
Tony Cui
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5320a56
Set deadlineMs for hedged requests
Tony Cui
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747e11e
Optimize processQueue() by setting threads free earlier
Tony Cui
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73f61a2
Move hedgingSettings check
Tony Cui
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ecd4ef7

Commits on Aug 19, 2026

Fixed small bugs and renaming nits
Tony Cui
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e0a20c2
Remove redundant code
Tony Cui
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a9bd384
Import new files into librarian.yaml
Tony Cui
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ab78c53
Modfied hedging publish start and end events in OTel spans
Tony Cui
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2519a90

Commits on Aug 20, 2026

Fix lint
Tony Cui
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35bd4e6

Commits on Aug 24, 2026

Fix up comments regarding callbacks, tests, and spans
Tony Cui
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41a54ab

Commits on Sep 1, 2026

Add Math.round() to fix floats`
Tony Cui
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3785482

Commits on Sep 9, 2026

Add proto telemetry header to improve server side visibility
Tony Cui
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885792e
Fix lint
Tony Cui
committed
8eb6694