[jira] [Commented] (SCB-706) refactor loadbalance filters logic to support invocation based filter

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SCB-706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16527433#comment-16527433 ] 

ASF GitHub Bot commented on SCB-706:
------------------------------------

liubao68 opened a new pull request #786: [SCB-706]refactor loadbalance filters logic to support invocation based filter
URL: https://github.com/apache/incubator-servicecomb-java-chassis/pull/786
 
 
   Follow this checklist to help us incorporate your contribution quickly and easily:
   
    - [ ] Make sure there is a [JIRA issue](https://issues.apache.org/jira/browse/SCB) filed for the change (usually before you start working on it).  Trivial changes like typos do not require a JIRA issue.  Your pull request should address just this issue, without pulling in other changes.
    - [ ] Each commit in the pull request should have a meaningful subject line and body.
    - [ ] Format the pull request title like `[SCB-XXX] Fixes bug in ApproximateQuantiles`, where you replace `SCB-XXX` with the appropriate JIRA issue.
    - [ ] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
    - [ ] Run `mvn clean install` to make sure basic checks pass. A more thorough check will be performed on your pull request automatically.
    - [ ] If this contribution is large, please file an Apache [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.pdf).
   
   ---
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> refactor loadbalance filters logic to support invocation based filter
> ---------------------------------------------------------------------
>
>                 Key: SCB-706
>                 URL: https://issues.apache.org/jira/browse/SCB-706
>             Project: Apache ServiceComb
>          Issue Type: Improvement
>            Reporter: liubao
>            Assignee: liubao
>            Priority: Major
>
> Why we do this?
>  # When implement invocation based filter, e.g. darklaunch deployment, we need to filter servers based on invocation parameters. But now, we create a Loadbalaner instance for each service, and Robin filter interface can not pass Invocation to it. Before refactor, we doing this by ThreadLocal and cache Invocation, and use in filter implementation. This is error prone and users can't handle this complixity
>  # We have other improvements, e.g. SCB-700, we can do server status check, and add a filter a choose from active servers. We need to consider filter orders and other feature, current implementation not satisfy this.
>  # We want to make loadbalance code handy by remove some compatible fixes. 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)