[ https://issues.apache.org/jira/browse/FLINK-27329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525020#comment-17525020 ]
Biao Geng commented on FLINK-27329: ----------------------------------- cc [~wangyang0918] I can take this ticket~ > Add default value of replica of JM pod and remove declaring it in example > yamls > ------------------------------------------------------------------------------- > > Key: FLINK-27329 > URL: https://issues.apache.org/jira/browse/FLINK-27329 > Project: Flink > Issue Type: Improvement > Components: Kubernetes Operator > Reporter: Biao Geng > Priority: Major > > Currently, we do not explicitly set the default value of `replica` in > `JobManagerSpec`. As a result, Java sets the default value to be zero. > Besides, in our examples, we explicitly declare `replica` in `JobManagerSpec` > to be 1. > After a deeper look when debugging the exception thrown in FLINK-27310, we > find it would be better to set the default value to 1 for `replica` fields > and remove the declaration in examples due to following reasons: > 1. A normal Session or Application cluster should have at least one JM. The > current default value, zero, does not follow the common case. > 2. One JM can work for k8s HA mode as well and if users really want to launch > a standby JM for faster recorvery, they can declare the `replica` field in > the yaml file. In examples, we just use the new default valu(i.e. 1) should > be fine. -- This message was sent by Atlassian Jira (v8.20.7#820007)