humingcheng created SCB-1742:
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Summary: Optimize Aggregator and etcd's service discovery cache
mechanism
Key: SCB-1742
URL: https://issues.apache.org/jira/browse/SCB-1742
Project: Apache ServiceComb
Issue Type: Improvement
Components: Service-Center
Reporter: humingcheng
Assignee: humingcheng
We only use the cache and not call the backend directly when using Aggregator
for service discovery, as Aggregator does not guarantee accuracy when querying
the backend.
For etcd, If the backend is unavailable, the cache content is returned instead
of a backend error.
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