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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-25401) Insert overwrite a table which location is on other cluster fail in kerberos cluster
Date Thu, 29 Jul 2021 06:44:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-25401?focusedWorklogId=631013&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-631013
]

ASF GitHub Bot logged work on HIVE-25401:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 29/Jul/21 06:43
            Start Date: 29/Jul/21 06:43
    Worklog Time Spent: 10m 
      Work Description: Neilxzn opened a new pull request #2544:
URL: https://github.com/apache/hive/pull/2544


   
   ### What changes were proposed in this pull request?
   obtaine delegation tokens for hive scratchDirs before hive submit mapreduce job.
   
   
   ### Why are the changes needed?
   https://issues.apache.org/jira/browse/HIVE-25401
   
   
   ### Does this PR introduce _any_ user-facing change?
   no
   
   ### How was this patch tested?
   no test
   


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

            Worklog Id:     (was: 631013)
    Remaining Estimate: 0h
            Time Spent: 10m

> Insert overwrite  a table which location is on other cluster fail  in kerberos cluster
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-25401
>                 URL: https://issues.apache.org/jira/browse/HIVE-25401
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 2.3.0, 3.1.2
>         Environment: hive 2.3 
> hadoop3 cluster with kerberos 
>            Reporter: Max  Xie
>            Priority: Minor
>         Attachments: image-2021-07-29-14-25-23-418.png
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> we have tow hdfs clusters with kerberos security,  it means that mapreduce task need
delegation tokens to authenticate namenode when hive on mapreduce run.
> Insert overwrite a table which location is on other cluster fail in kerberos cluster.
For example, 
>  # yarn cluster's default fs is hdfs://cluster1
>  # tb1's location is hdfs://cluster1/tb1
>  # tb2's location is hdfs://cluster2/tb2 
>  #  sql `INSERT OVERWRITE TABLE  tb2 SELECT * from tb1` run on yarn cluster will fail
>  
> reduce task error log:
> !image-2021-07-29-14-25-23-418.png!
> How to fix:
> After dig it, web found mapreduce job just obtain delegation tokens for input files in
FileInputFormat. But Hive context get extendal scratchDir base on table's location, If the
table 's location is on other cluster, the delegation token will not be obtained. 
> So we need to obtaine delegation tokens for hive scratchDirs before hive submit mapreduce
job.
>  
> How to test:
> no test
>  
>  



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