liubao created SCB-2742:
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Summary: change IsolationDiscoveryFilter enabled by false
Key: SCB-2742
URL: https://issues.apache.org/jira/browse/SCB-2742
Project: Apache ServiceComb
Issue Type: Improvement
Components: Java-Chassis
Reporter: liubao
Assignee: liubao
Fix For: java-chassis-2.9.0
Motivations:
# In error condition, the best choice for protection is fast fail, not ensure
the invocation success. In many situations, the way we try to make the
invocation success, will cause more problems.
# For example, if one instance error goes to 50% or 50% invocations timeout,
and we isolate the instance, this will migrate invocations to other instances.
In real applications, the migration will cause other instance fail.
(Microservice instances are stateless, and one fail , the other may fail. )
# We suggest users to use
instance-isolation-consumer,instance-bulkhead-consumer to make failure fail
fast, and not isolation the instance, so that when the window is match, this
instance can be available. And we do not migrate the invocations from this
instance to others, this will not cause too many invocations to other
instances.
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