YaoHaishi created SCB-1308:
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             Summary: Improve instance isolation mechanism
                 Key: SCB-1308
                 URL: https://issues.apache.org/jira/browse/SCB-1308
             Project: Apache ServiceComb
          Issue Type: Improvement
          Components: Java-Chassis
    Affects Versions: java-chassis-1.2.1
            Reporter: YaoHaishi
            Assignee: YaoHaishi


Currently, when the error instance has been isolated for as long as 
singleTestTime, it can be tried until the lastVisitTime is refreshed. But if 
the error instance is still in timeout error status, it takes too long time to 
get the invocation result and get the lastVisitTime refreshed. And before the 
lastVisitTime is refreshed, there may be too many requests routed to the error 
instance, causing massive invocation errors.



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