The pool manager keeps terminating function pod periodically even there are traffic to the function. The root cause is that executor, poolmgr, newdeploy manage their own functionServiceCache separately. And when router taps a function, executor updates the access time of the function service entry in its own cache without notifying executor types to do the update as well. Hence, the access time of function service entry in poolmanager cache never gets updated. Due to the access time never gets updated, the idle pod reaper in poolmanager then thinks the function pod is in idle state and recycle it. This PR removes the cache in executor itself, and when router tries to tap a function, executor will call executor type to tap the function and update access time.
Test Framework
Prerequisite tools
- GNU parallel >= 20161222
If you want to run test on Mac, you also need to install GNU tools for command compatibility. With Homebrew, you can get them by:
brew install coreutils findutils gnu-sed
Run a single test
cd $REPO/test
# run 'tests/test_node_hello_http.sh'
./tests/test_node_hello_http.sh
# if you want to preserve the resources that created by test for debug
export TEST_NOCLEANUP=yes
./tests/test_node_hello_http.sh
# run 'tests/test_environments/test_go_env.sh' with custom images
export GO_RUNTIME_IMAGE=my.docker.repo/go-env:test
./tests/test_environments/test_go_env.sh
Run tests in parallel
NOTE: Some tests will consume lots of resources and cause the test fail.
Example: Run tests with 4 concurrent jobs.
cd $REPO/test
export JOBS=4
./run_test.sh \
tests/test_backend_poolmgr.sh \
tests/test_node_hello_http.sh \
tests/test_pass.sh \
tests/test_specs/test_spec.sh
# The test output will be available in logs/
cat logs/test_backend_poolmgr.sh.log
# The summary report will be saved to logs/_recap
cat logs/_recap