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test: allow controlling etcd log level

Browse Source 
When running an integration test that measures performance, like for example
test/integration/scheduler_perf, running etcd with debug level output is
undesirable because it creates additional load on the system and isn't
realistic.

The default is still "debug", but ETCD_LOGLEVEL=warn can be used to override
that.
This commit is contained in:
Patrick Ohly 2022-01-20 12:06:22 +01:00
parent 1f341ee7b5
commit 259a8ad0b7
2 changed files with 10 additions and 6 deletions
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8
hack/lib/etcd.sh
View File

@ -19,6 +19,10 @@
ETCD_VERSION=${ETCD_VERSION:-3.5.1}
ETCD_HOST=${ETCD_HOST:-127.0.0.1}
ETCD_PORT=${ETCD_PORT:-2379}
# This is intentionally not called ETCD_LOG_LEVEL:
# etcd checks that and compains when it is set in addition
# to the command line argument, even when both have the same value.
ETCD_LOGLEVEL=${ETCD_LOGLEVEL:-debug}
export KUBE_INTEGRATION_ETCD_URL="http://${ETCD_HOST}:${ETCD_PORT}"
kube::etcd::validate() {
@ -82,8 +86,8 @@ kube::etcd::start() {
else
ETCD_LOGFILE=${ETCD_LOGFILE:-"/dev/null"}
fi
kube::log::info "etcd --advertise-client-urls ${KUBE_INTEGRATION_ETCD_URL} --data-dir ${ETCD_DIR} --listen-client-urls http://${ETCD_HOST}:${ETCD_PORT} --log-level=debug > \"${ETCD_LOGFILE}\" 2>/dev/null"
etcd --advertise-client-urls "${KUBE_INTEGRATION_ETCD_URL}" --data-dir "${ETCD_DIR}" --listen-client-urls "${KUBE_INTEGRATION_ETCD_URL}" --log-level=debug 2> "${ETCD_LOGFILE}" >/dev/null &
kube::log::info "etcd --advertise-client-urls ${KUBE_INTEGRATION_ETCD_URL} --data-dir ${ETCD_DIR} --listen-client-urls http://${ETCD_HOST}:${ETCD_PORT} --log-level=${ETCD_LOGLEVEL} > \"${ETCD_LOGFILE}\" 2>/dev/null"
etcd --advertise-client-urls "${KUBE_INTEGRATION_ETCD_URL}" --data-dir "${ETCD_DIR}" --listen-client-urls "${KUBE_INTEGRATION_ETCD_URL}" --log-level="${ETCD_LOGLEVEL}" 2> "${ETCD_LOGFILE}" >/dev/null &
ETCD_PID=$!
echo "Waiting for etcd to come up."

8
test/integration/scheduler_perf/README.md
View File

@ -36,14 +36,14 @@ How To Run
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=true -logtostderr=true -run=." KUBE_TIMEOUT="--timeout=60m" SHORT="--short=false"
make test-integration WHAT=./test/integration/scheduler_perf ETCD_LOGLEVEL=warn KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=true -logtostderr=true -run=." KUBE_TIMEOUT="--timeout=60m" SHORT="--short=false"
```
## Benchmark tests
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling"
make test-integration WHAT=./test/integration/scheduler_perf ETCD_LOGLEVEL=warn KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling"
```
The benchmark suite runs all the tests specified under config/performance-config.yaml.
@ -58,14 +58,14 @@ Otherwise, the golang benchmark framework will try to run a test more than once
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling/SchedulingBasic/5000Nodes/5000InitPods/1000PodsToSchedule"
make test-integration WHAT=./test/integration/scheduler_perf ETCD_LOGLEVEL=warn KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling/SchedulingBasic/5000Nodes/5000InitPods/1000PodsToSchedule"
```
To produce a cpu profile:
```shell
# In Kubernetes root path
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TIMEOUT="-timeout=3600s" KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling -cpuprofile ~/cpu-profile.out"
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TIMEOUT="-timeout=3600s" ETCD_LOGLEVEL=warn KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling -cpuprofile ~/cpu-profile.out"
```
### How to configure benchmark tests