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-rwxr-xr-xtools/run_tests/dockerize/build_and_run_docker.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/run_tests/dockerize/build_and_run_docker.sh b/tools/run_tests/dockerize/build_and_run_docker.sh
index 4ef74085f9..3f01fbc7b7 100755
--- a/tools/run_tests/dockerize/build_and_run_docker.sh
+++ b/tools/run_tests/dockerize/build_and_run_docker.sh
@@ -73,6 +73,10 @@ docker run \
# Copy output artifacts
if [ "$OUTPUT_DIR" != "" ]
then
+ # Create the artifact directory in advance to avoid a race in "docker cp" if tasks
+ # that were running in parallel finish at the same time.
+ # see https://github.com/grpc/grpc/issues/16155
+ mkdir -p "$git_root/$OUTPUT_DIR"
docker cp "$CONTAINER_NAME:/var/local/git/grpc/$OUTPUT_DIR" "$git_root" || FAILED="true"
fi