Daniel Rossos created FLINK-38915:
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Summary: Suspending Pipeline Breaks FlinkBlueGreenDeployment
Key: FLINK-38915
URL: https://issues.apache.org/jira/browse/FLINK-38915
Project: Flink
Issue Type: Improvement
Components: Kubernetes Operator
Reporter: Daniel Rossos
*Current Behaviour*
Setting "spec.template.spec.job.state" to "suspended" in
FlinkBlueGreenDeployment triggers a broken transition. The controller triggers
a blue-green transition that creates a new suspended deployment which then
fails because the new 'green' pipeline never reaches running state. This
creates a broken transition.
*Proposed Solution*
The BlueGreen deployment should properly handle these transitions to
"suspension state". The proposed method (as discussed in discussion thread
[here|https://lists.apache.org/thread/0hhct3ktws3wv9psrgyro0kdy8g1hjnq]) is as
follows:
State changes to "spec.template.spec.job.state" trigger in-place suspension of
the active child. While suspended, all blue-green transitions are ignored until
spec is set back to running. Once running again, spins up new deployment with
any accumulated spec changes and resumes normal blue-green operations.
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