wujimin created SCB-1150:
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Summary: improve how to find problem when error happened
Key: SCB-1150
URL: https://issues.apache.org/jira/browse/SCB-1150
Project: Apache ServiceComb
Issue Type: Task
Components: Java-Chassis
Reporter: wujimin
when invocation timeout or isolated or other scenes, it's very difficult to
find the problem, we must improve related ability
we can create projects in "integration test" to build business like: 3rd ->
edge -> A -> B, and enhance fault injection to support inject error or timeout
on:
* consumer handler request
* http client filter beforeSendRequest
* http server filter afterReceiveRequest
* producer handler request
* producer business method
* producer handler response
* http server filter beforeSendResponse
* http client filter afterReceiveResponse
* consumer handler response
that means there are 21 places will inject faults.
when fault happened in any place, we should be able to find problem from log.
this is a big and very important task, feel free to create subtasks, eg:
* create rule for filter or handler, when execute an action caused lost
invocation context in threadLocal, it's develop's duty to restore context in
threadLocal, that makes we can log invocation id and traceId by MDC mechanism
* enhance fault injection
* provide a way to view discovery tree status
* provide a way to view isolation status
* when timeout happened, how to find problem
* when error happened, how to find problem
* when isolation happened, how to find problem
* ......
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