gyfora commented on a change in pull request #131:
URL:
https://github.com/apache/flink-kubernetes-operator/pull/131#discussion_r840789333
##########
File path:
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/config/Mode.java
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@@ -19,13 +19,33 @@
package org.apache.flink.kubernetes.operator.config;
import org.apache.flink.kubernetes.operator.crd.FlinkDeployment;
+import org.apache.flink.kubernetes.operator.crd.spec.FlinkDeploymentSpec;
/** The mode of {@link FlinkDeployment}. */
public enum Mode {
APPLICATION,
SESSION;
+ /**
+ * Return the mode of the given FlinkDeployment for Observer and
Reconciler. Note, switching
+ * mode for an existing deployment is not allowed.
+ *
+ * @param flinkApp given FlinkDeployment
+ * @return Mode
+ */
public static Mode getMode(FlinkDeployment flinkApp) {
- return flinkApp.getSpec().getJob() != null ? APPLICATION : SESSION;
+ // Try to use lastReconciledSpec if it exists.
+ // The mode derived from last-reconciled spec or current spec should
be same.
+ // If they are different, observation phase will use last-reconciled
spec and validation
+ // phase will fail.
+ FlinkDeploymentSpec lastReconciledSpec =
+
flinkApp.getStatus().getReconciliationStatus().getLastReconciledSpec();
+ return lastReconciledSpec == null
+ ? getMode(flinkApp.getSpec())
+ : getMode(flinkApp.getSpec());
Review comment:
no worries, we have code review for a reason :)
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