[jira] [Resolved] (SCB-909) Add fault tolerance for service comb TCC

["Willem Jiang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SCB-909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Willem Jiang resolved SCB-909.
------------------------------
    Resolution: Fixed

Applied the patch into master branch.

> Add fault tolerance for service comb TCC
> ----------------------------------------
>
>                 Key: SCB-909
>                 URL: https://issues.apache.org/jira/browse/SCB-909
>             Project: Apache ServiceComb
>          Issue Type: New Feature
>          Components: Saga
>    Affects Versions: pack-0.3.0
>            Reporter: cherrylzhao
>            Assignee: cherrylzhao
>            Priority: Major
>             Fix For: pack-0.3.0
>
>
> TCC fault tolerance incude following point.
> # omega can switch to another available alpha when sending message failed.
> # if omega resend logic (different alpha) failed, omega can rollback local data automatically.
> # alpha do resend logic (same omega) when ACK failed, if resend failed, dirty data can left in database, this will be handled by scanner.
> # design transaction timeout mechanics, if scanner found event won't completed within expected time, sending componsate command to omega, it has different type compare with normal.



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