Ext proc client flow control - #12956

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kannanjgithub wants to merge 17 commits into

grpc:masterfrom

kannanjgithub:ext-proc-client-flow-control

Commits on Jul 20, 2026

xds: bypass sidecar readiness for non-GRPC responses & fix draining conformance
kannanjgithub
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7c6740f
Application level flow control on ext_proc client interceptor.
kannanjgithub
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5713e3f
Make givenObservabilityModeFalse_whenExtProcBusy_thenAppRequestsAreBuffered use response processing mode GRPC so that buffered requests are actually sent to ext_proc instead of directly upstream in…
kannanjgithub
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4e01052
Merge branch 'ext-proc-draining-skip-queueing-or-saving-headers-when-send-mode-is-off' into ext-proc-client-flow-control
kannanjgithub
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4a63430
Added the unit test givenResponseBodyModeNone_whenExtProcBusy_thenAppRequestsAreNotBuffered to verify that when response_body_mode is NONE (and observability mode is disabled), request(int) calls a…
kannanjgithub
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f631bd7
Reordered flow control tests.
kannanjgithub
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98e258a
Add more tests.
kannanjgithub
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5855bc8

Commits on Jul 21, 2026

Evaluate flow control violations based on the window size before applying the current message size, rather than after.
kannanjgithub
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dc0370c

Commits on Jul 22, 2026

xds: Fix ext_proc client flow control to gate window updates by transport readiness
kannanjgithub
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ceef8df

Commits on Jul 27, 2026

xds: implement upstream flow control queuing and draining in ext_proc client interceptor
kannanjgithub
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e34bc57

Commits on Jul 28, 2026

Test coverage and remove redundant branches.
kannanjgithub
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33d2df9

Commits on Jul 29, 2026

Commits on Jul 30, 2026

Merge remote-tracking branch 'origin/master' into ext-proc-client-flow-control
kannanjgithub
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1f25ba6
Merge.
kannanjgithub
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1a0d210
Revert nit changes causing diffs.
kannanjgithub
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98ec5be

Commits on Aug 5, 2026

nit.
kannanjgithub
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d434041