[jira] [Commented] (HBASE-22120) Replace HTrace with OpenTracing

["Wei-Chiu Chuang (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-22120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17025513#comment-17025513 ] 

Wei-Chiu Chuang commented on HBASE-22120:
-----------------------------------------

Started a thread to discuss a feature branch for this.

> Replace HTrace with OpenTracing
> -------------------------------
>
>                 Key: HBASE-22120
>                 URL: https://issues.apache.org/jira/browse/HBASE-22120
>             Project: HBase
>          Issue Type: New Feature
>          Components: tracing
>    Affects Versions: 3.0.0
>            Reporter: Sergey Shelukhin
>            Assignee: Wei-Chiu Chuang
>            Priority: Major
>
> h2. Deprecate HTrace usage in HBase
>  * HBase 1.x (branch-1)
>  * Declare HTrace (htrace 3.x) deprecated in the user doc.
>  * HBase 2.x (branch-2)
>  * Declare HTrace deprecated in the user doc. Furthermore, state that it is known not working.
>  * Either fix the trace context propagation bug in HBase 2.x, or backport OpenTracing support from the master branch. I am inclined to the latter.
>  * HBase 3.x (master branch)
>  * Remove HTrace entirely.
>  * Add OpenTracing APIs. Potentially backport to HBase 2.4.
>  * Replace OpenTracing API with OpenTelemetry when the latter stabilizes.
> h1. Milestones
>  # Doc -- deprecation notice
>  # Replace existing HTrace code with OpenTracing code in the master branch (3.x) 
>  # Java (a [poc|https://github.com/jojochuang/hbase/tree/HBASE-22120] is currently under way)
>  # HBase shell and scripts (Ruby, shell script)
>  # Doc 
>  # Add new trace instrumentation code for new features not instrumented by the existing HTace code.
>  # Propagate the traces to other systems such as HDFS and MapReduce.
>  # Support other OpenTracing tracers.



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