Kai-Hsun Chen created SUBMARINE-880:
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Summary: Cannot run two experiments with the same name
Key: SUBMARINE-880
URL: https://issues.apache.org/jira/browse/SUBMARINE-880
Project: Apache Submarine
Issue Type: Bug
Components: experiment
Reporter: Kai-Hsun Chen
Assignee: Kai-Hsun Chen
Fix For: 0.6.0
We cannot run two experiments with the same name. Take
[experimentIT.java|https://github.com/apache/submarine/blob/master/submarine-test/test-e2e/src/test/java/org/apache/submarine/integration/experimentIT.java]
as an example, the frontend E2E testcase will create an experiment named
"experiment-e2e-test". If we run this testcase twice, the workbench just shows
an "experiment-e2e-test" rather than two.
The root cause is that the K8sSubmitter will create two PODs for an
"experiment-e2e-test". The names of these two PODs are
"experiment-e2e-test-ps-0" and "experiment-e2e-test-worker-0". Hence, when we
try to create the second "experiment-e2e-test", K8sSubmitter will throw an
exception due to duplicate POD names.
To reproduce the bug:
{code:java}
// Step1: Run workbench on port 8080
// Step2:
cd submarine-cloud-v2
// Step3: Create "experiment-e2e-test" twice
./hack/run_frontend_e2e.sh experimentIT
./hack/run_frontend_e2e.sh experimentIT
// Step4: Check Workbench: only an "experiment-e2e-test" exists => BUG!
{code}
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