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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3767) Prevent spurious tracing spans from Hadoop being written in Phoenix Trace tables
Date Mon, 22 May 2017 22:53:04 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16020342#comment-16020342
] 

Hadoop QA commented on PHOENIX-3767:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12869347/PHOENIX-3767.003.patch
  against master branch at commit e27fae93191d9540574765065900a23bda90905f.
  ATTACHMENT ID: 12869347

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 4 new or modified
tests.

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-PHOENIX-Build/887//console

This message is automatically generated.

> Prevent spurious tracing spans from Hadoop being written in Phoenix Trace tables
> --------------------------------------------------------------------------------
>
>                 Key: PHOENIX-3767
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3767
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Karan Mehta
>            Assignee: Karan Mehta
>         Attachments: PHOENIX-3767.001.patch, PHOENIX-3767.002.patch, PHOENIX-3767.003.patch
>
>
> PHOENIX-3752 is the JIRA to remove Hadoop Metrics-2 system from the Phoenix Framework,
whose task is to deliver the received HTrace spans to the phoenix table. When replacing this
system with a simple one as discussed on this JIRA, one of the current test {{testClientServerIndexingTracing()}}
triggers a bug in Hadoop (HDFS-11583), which causes spurious {{writeTo}} spans being generated
from {{DataStreamer}} class. 
> Since Phoenix implements its {{SpanReceiver}} to receive the HTrace spans, all these
spans are redirected over here, which eventually get persisted into Phoenix tables with the
system developed in PHOENIX-3752. The information is useless and might use up unnecessary
space. 
> This JIRA is to add a patch to ignore those spans and prevent them from being written
to Phoenix tables. 



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