liubao created SCB-582:
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Summary: 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
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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