[jira] [Commented] (HTRACE-27) Make Span serialization to JSON consistent across htraced and the java client

["Colin Patrick McCabe (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HTRACE-27?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14259775#comment-14259775 ] 

Colin Patrick McCabe commented on HTRACE-27:
--------------------------------------------

* Use single-letter field names for JSON fields.
* Change "start" and "stop" to "begin" and "end" (to make it obvious what "b" and "e" are)
* Make "parents" an array in the JSON.  This prepares the way for having multiple parents for a span later.  (Some follow-on work will be needed in the java code to make this happen.)
* Use hex for span IDs
* ProcessID and Description are not optional; they are always present in the JSON

> Make Span serialization to JSON consistent across htraced and the java client
> -----------------------------------------------------------------------------
>
>                 Key: HTRACE-27
>                 URL: https://issues.apache.org/jira/browse/HTRACE-27
>             Project: HTrace
>          Issue Type: Bug
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HTRACE-27.001.patch
>
>
> We need to make Span serialization to JSON consistent across htraced, the java client, and the web interface.  We should also shrink the size of the serialized data a bit, by using short tag names, and by using hexadecimal for ID fields.



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