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https://issues.apache.org/jira/browse/SCB-582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16479902#comment-16479902
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ASF GitHub Bot commented on SCB-582:
------------------------------------
WillemJiang commented on a change in pull request #704: [SCB-582]Provide a way
to protect instance removal
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/704#discussion_r189132762
##########
File path: demo/demo-pojo/pojo-client/src/main/resources/microservice.yaml
##########
@@ -23,6 +23,12 @@ servicecomb:
service:
registry:
address: http://127.0.0.1:30100
+ instance:
+ healthCheck:
+ interval: 2
+ watch: false
+ empty:
Review comment:
Please update document if there is new option introduced.
Is there any other empty related options?
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> Provide a way to protection for instance removal
> ------------------------------------------------
>
> Key: SCB-582
> URL: https://issues.apache.org/jira/browse/SCB-582
> Project: Apache ServiceComb
> Issue Type: New Feature
> Components: Java-Chassis
> Reporter: liubao
> Assignee: liubao
> Priority: Major
> Fix For: java-chassis-1.0.0-m2
>
>
> In some applications, each microservice have fixed instances and rarely
> change. But for some reason, heartbeat to service center is not stable. In
> this scenario, instances will get lost and result in invocation failure.
>
> To deal with this problem, we need to provide a way to protect instance
> removal. That's when there is instance removal, we first check(ping)the
> instance to see if it is reachable. If it's reachable, we don't remove it.
>
> Since this protection is not fit for docker applications or scenarios where
> instances are constantly removed and added, and resources(hosts ,ip, port)
> are reused, this feature is an optional feature and users can open it when
> necessary.
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