From 1fd45fcd01d20d51c8d76b0e9ef06529688e2d6b Mon Sep 17 00:00:00 2001
From: AJ Heller <hork@google.com>
Date: Wed, 25 Oct 2023 10:38:50 -0700
Subject: [PATCH] [EventEngine] Disable Posix EventEngine Listener experiment
 (#34793)

There are a small handful of failures:

TSAN issue:
*
https://source.cloud.google.com/results/invocations/f82a4be1-a38e-4a19-b22f-295ed6f7d2d2/targets/%2F%2Ftest%2Fcore%2Fend2end:bad_server_response_test@poller%3Dpoll/log

Flakes:
*
https://source.cloud.google.com/results/invocations/a11b04d8-e0d1-4175-a7a2-6e712b9bef9b/targets/%2F%2Ftest%2Fcore%2Fend2end:cancel_with_status_test@poller%3Depoll1/tests
---
 bazel/experiments.bzl                   | 10 ++++------
 src/core/lib/experiments/experiments.cc |  2 +-
 src/core/lib/experiments/experiments.h  |  3 +--
 src/core/lib/experiments/rollouts.yaml  |  2 +-
 4 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/bazel/experiments.bzl b/bazel/experiments.bzl
index 753a7955c66..ae93553dbcf 100644
--- a/bazel/experiments.bzl
+++ b/bazel/experiments.bzl
@@ -203,6 +203,7 @@ EXPERIMENTS = {
             ],
             "core_end2end_test": [
                 "event_engine_client",
+                "event_engine_listener",
                 "promise_based_client_call",
                 "promise_based_server_call",
                 "work_serializer_dispatch",
@@ -218,6 +219,9 @@ EXPERIMENTS = {
             "event_engine_client_test": [
                 "event_engine_client",
             ],
+            "event_engine_listener_test": [
+                "event_engine_listener",
+            ],
             "flow_control_test": [
                 "multiping",
                 "peer_state_based_framing",
@@ -253,9 +257,6 @@ EXPERIMENTS = {
                 "block_excessive_requests_before_settings_ack",
                 "tarpit",
             ],
-            "core_end2end_test": [
-                "event_engine_listener",
-            ],
             "cpp_end2end_test": [
                 "chttp2_batch_requests",
                 "chttp2_offload_on_rst_stream",
@@ -265,9 +266,6 @@ EXPERIMENTS = {
                 "round_robin_delegate_to_pick_first",
                 "wrr_delegate_to_pick_first",
             ],
-            "event_engine_listener_test": [
-                "event_engine_listener",
-            ],
             "flow_control_test": [
                 "chttp2_batch_requests",
                 "chttp2_offload_on_rst_stream",
diff --git a/src/core/lib/experiments/experiments.cc b/src/core/lib/experiments/experiments.cc
index 8f7ca123ebf..0a7a70fe7d1 100644
--- a/src/core/lib/experiments/experiments.cc
+++ b/src/core/lib/experiments/experiments.cc
@@ -799,7 +799,7 @@ const ExperimentMetadata g_experiment_metadata[] = {
     {"event_engine_dns", description_event_engine_dns,
      additional_constraints_event_engine_dns, false, false},
     {"event_engine_listener", description_event_engine_listener,
-     additional_constraints_event_engine_listener, true, true},
+     additional_constraints_event_engine_listener, false, true},
     {"free_large_allocator", description_free_large_allocator,
      additional_constraints_free_large_allocator, false, true},
     {"http2_stats_fix", description_http2_stats_fix,
diff --git a/src/core/lib/experiments/experiments.h b/src/core/lib/experiments/experiments.h
index f8d644ec6ac..3b6fbd31782 100644
--- a/src/core/lib/experiments/experiments.h
+++ b/src/core/lib/experiments/experiments.h
@@ -236,8 +236,7 @@ inline bool IsClientPrivacyEnabled() { return false; }
 inline bool IsCombinerOffloadToEventEngineEnabled() { return true; }
 inline bool IsEventEngineClientEnabled() { return false; }
 inline bool IsEventEngineDnsEnabled() { return false; }
-#define GRPC_EXPERIMENT_IS_INCLUDED_EVENT_ENGINE_LISTENER
-inline bool IsEventEngineListenerEnabled() { return true; }
+inline bool IsEventEngineListenerEnabled() { return false; }
 inline bool IsFreeLargeAllocatorEnabled() { return false; }
 #define GRPC_EXPERIMENT_IS_INCLUDED_HTTP2_STATS_FIX
 inline bool IsHttp2StatsFixEnabled() { return true; }
diff --git a/src/core/lib/experiments/rollouts.yaml b/src/core/lib/experiments/rollouts.yaml
index 5aa0c8f6b34..ffc067fee6a 100644
--- a/src/core/lib/experiments/rollouts.yaml
+++ b/src/core/lib/experiments/rollouts.yaml
@@ -72,7 +72,7 @@
   default:
     # not tested on iOS at all
     ios: broken
-    posix: true
+    posix: false
     windows: true
 - name: free_large_allocator
   default: false