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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/03/03 18:13:00 UTC
[jira] [Work logged] (HIVE-19231) Beeline generates garbled output
when using UnsupportedTerminal
[ https://issues.apache.org/jira/browse/HIVE-19231?focusedWorklogId=560580&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-560580 ]
ASF GitHub Bot logged work on HIVE-19231:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Mar/21 18:12
Start Date: 03/Mar/21 18:12
Worklog Time Spent: 10m
Work Description: elukey opened a new pull request #749:
URL: https://github.com/apache/bigtop/pull/749
This patch is contained in Hive 3.x, but not in the Hive 2.x branch. It
leads to subtle errors when executing Hive via Python or systemd, and
having it fixed in the 1.5 branch would allow people to rebuild their
packages if needed (we could update the docs about it).
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Issue Time Tracking
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Worklog Id: (was: 560580)
Remaining Estimate: 0h
Time Spent: 10m
> Beeline generates garbled output when using UnsupportedTerminal
> ---------------------------------------------------------------
>
> Key: HIVE-19231
> URL: https://issues.apache.org/jira/browse/HIVE-19231
> Project: Hive
> Issue Type: Bug
> Components: Beeline
> Affects Versions: 2.1.0
> Reporter: Naveen Gangam
> Assignee: Naveen Gangam
> Priority: Major
> Fix For: 3.1.0, 3.0.0
>
> Attachments: HIVE-19231.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We had a customer that was using some sort of front end that would invoke beeline commands with some query files on a node that that remote to the HS2 node.
> So beeline runs locally on this edge but connects to a remote HS2. Since the fix made in HIVE-14342, the beeline started producing garbled line in the output. Something like
> {code:java}
> ^Mnull ^Mnull^Mnull ^Mnull00-0000 All Occupations 135185230 42270
> 11-0000 Management occupations 6152650 100310{code}
>
> I havent been able to reproduce the issue locally as I do not have their system, but with some additional instrumentation I have been able to get some info regarding the beeline process.
> Essentially, such invocation causes beeline process to run with {{-Djline.terminal=jline.UnsupportedTerminal}} all the time and thus causes the issue. They can run the same beeline command directly in the shell on the same host and it does not cause this issue.
> PID S TTY TIME COMMAND
> 44107 S S ? 00:00:00 bash beeline -u ...
> PID S TTY TIME COMMAND
> 48453 S+ S pts/4 00:00:00 bash beeline -u ...
> Somehow that process wasnt attached to any local terminals. So the check made for /dev/stdin wouldnt work.
>
> Instead an additional check to check the TTY session of the process before using the UnsupportedTerminal (which really should only be used for backgrounded beeline sessions) seems to resolve the issue.
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