[jira] [Work logged] (HADOOP-15566) Support OpenTelemetry

Mon, 08 Nov 2021 02:23:08 -0800 


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https://issues.apache.org/jira/browse/HADOOP-15566?focusedWorklogId=678406&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-678406
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ASF GitHub Bot logged work on HADOOP-15566:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 08/Nov/21 10:22
            Start Date: 08/Nov/21 10:22
    Worklog Time Spent: 10m 
      Work Description: ArkenKiran commented on pull request #3445:
URL: https://github.com/apache/hadoop/pull/3445#issuecomment-963008044


   @ndimiduk Thanks for sharing your approach. I was able to generate the 
traces for hbase. I could see the hadoop components only in few paths. Please 
let me know the next steps for HADOOP-15566
   Hbase meta  scan block cache miss. 
   
![meta-scan-block-cache-miss](https://user-images.githubusercontent.com/1924534/140724417-6964d94d-3497-4d9c-b215-3fc14d6c69fa.png)
   Hbase meta scan block cache hit
   
![meta-scan-block-cache-hit](https://user-images.githubusercontent.com/1924534/140724491-e050a128-8ecd-4a49-b1e2-50677fc5c200.png)
   hbase put 
   
![hbase-put](https://user-images.githubusercontent.com/1924534/140724661-a7b8647c-d51a-4ac8-9ece-ffd8ca170328.png)
   hbase scan
   
![hbase-scan](https://user-images.githubusercontent.com/1924534/140724868-f02d0aef-7e75-4e27-ab44-f4876a1ab1f1.png)
   hadoop shell ls 
   
![hadoop-shell-ls](https://user-images.githubusercontent.com/1924534/140725036-fadfdc8e-0398-4adb-86c9-892521ea9e14.png)
   hadoop shell mkdir
   
![hadoop-shell-mkdir](https://user-images.githubusercontent.com/1924534/140725120-bbe70088-0311-449d-83b0-85256e0db5a8.png)
   
   
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 678406)
    Time Spent: 6.5h  (was: 6h 20m)

> Support OpenTelemetry
> ---------------------
>
>                 Key: HADOOP-15566
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15566
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: metrics, tracing
>    Affects Versions: 3.1.0
>            Reporter: Todd Lipcon
>            Assignee: Siyao Meng
>            Priority: Major
>              Labels: pull-request-available, security
>         Attachments: HADOOP-15566-WIP.1.patch, HADOOP-15566.000.WIP.patch, 
> OpenTelemetry Support Scope Doc v2.pdf, OpenTracing Support Scope Doc.pdf, 
> Screen Shot 2018-06-29 at 11.59.16 AM.png, ss-trace-s3a.png
>
>          Time Spent: 6.5h
>  Remaining Estimate: 0h
>
> The HTrace incubator project has voted to retire itself and won't be making 
> further releases. The Hadoop project currently has various hooks with HTrace. 
> It seems in some cases (eg HDFS-13702) these hooks have had measurable 
> performance overhead. Given these two factors, I think we should consider 
> removing the HTrace integration. If there is someone willing to do the work, 
> replacing it with OpenTracing might be a better choice since there is an 
> active community.



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