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https://issues.apache.org/jira/browse/HIVE-14342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15410183#comment-15410183
 ] 

Naveen Gangam commented on HIVE-14342:
--------------------------------------

Thanks Mohit. I ran the following test on bash 4.1.2 (tried both conditions, 
the second condition for Bash 4.2+ does not seem to work as expected).
The prompt variable does not seem to be set in any scenario. I ran the test 
both in background and foreground and the result is the same. Running from a 
remote node results in the same.

{code}
# cat test.sh 
#!/usr/bin/env bash

if [ -z $PS1 ] # no prompt?
#if [ -v PS1 ]   # On Bash 4.2+ ...
then
  echo "non-interactive3"
else
  echo "interactive3"
fi
# ./test.sh 
non-interactive3
# ./test.sh &
[1] 5715
# non-interactive3

[1]+  Done                    ./test.sh
{code}

>From a remote node
{code}
ngangam-MBP-2:~ ngangam$ ssh -l root <remoteHost.domain.com> "/root/test.sh"
root@<remoteHost.domain.com>'s password: 
non-interactive3
{code}

In the link above, further down on the page, there is a sample using exactly 
what the patch is, "-p /dev/stdin". Do you know any other means that might 
work? Thanks

> Beeline output is garbled when executed from a remote shell
> -----------------------------------------------------------
>
>                 Key: HIVE-14342
>                 URL: https://issues.apache.org/jira/browse/HIVE-14342
>             Project: Hive
>          Issue Type: Bug
>          Components: Beeline
>    Affects Versions: 2.0.0
>            Reporter: Naveen Gangam
>            Assignee: Naveen Gangam
>         Attachments: HIVE-14342.2.patch, HIVE-14342.patch, HIVE-14342.patch
>
>
> {code}
> use default;
> create table clitest (key int, name String, value String);
> insert into table clitest values 
> (1,"TRUE","1"),(2,"TRUE","1"),(3,"TRUE","1"),(4,"TRUE","1"),(5,"FALSE","0"),(6,"FALSE","0"),(7,"FALSE","0");
> {code}
> then run a select query
> {code} 
> # cat /tmp/select.sql 
> set hive.execution.engine=mr;
> select key,name,value 
> from clitest 
> where value="1" limit 1;
> {code}
> Then run beeline via a remote shell, for example
> {code}
> $ ssh -l root <remotehost.domain.com> "sudo -u hive beeline -u 
> jdbc:hive2://localhost:10000 -n hive -p hive --silent=true 
> --outputformat=csv2 -f /tmp/select.sql" 
> root@<remoteHost.domain.com>'s password: 
> 16/07/12 14:59:22 WARN mapreduce.TableMapReduceUtil: The hbase-prefix-tree 
> module jar containing PrefixTreeCodec is not present.  Continuing without it.
> nullkey,name,value                                     
> 1,TRUE,1
> null                                                   
> $
> {code}
> In older releases that the output is as follows
> {code}
> $ ssh -l root <remoteHost.domain.com> "sudo -u hive beeline -u 
> jdbc:hive2://localhost:10000 -n hive -p hive --silent=true 
> --outputformat=csv2 -f /tmp/run.sql" 
> Are you sure you want to continue connecting (yes/no)? yes
> root@<remoteHost.domain.com>'s password: 
> 16/07/12 14:57:55 WARN mapreduce.TableMapReduceUtil: The hbase-prefix-tree 
> module jar containing PrefixTreeCodec is not present.  Continuing without it.
> key,name,value
> 1,TRUE,1
> $
> {code}
> The output contains nulls instead of blank lines. This is due to the use of 
> -Djline.terminal=jline.UnsupportedTerminal introduced in HIVE-6758 to be able 
> to run beeline as a background process. But this is the unfortunate side 
> effect of that fix.
> Running beeline in background also produces garbled output.
> {code}
> # beeline -u "jdbc:hive2://localhost:10000" -n hive -p hive --silent=true 
> --outputformat=csv2 --showHeader=false -f /tmp/run.sql 2>&1 > 
> /tmp/beeline.txt &
> # cat /tmp/beeline.txt 
> null1,TRUE,1                                           
> #
> {code}
> So I think the use of jline.UnsupportedTerminal should be documented but not 
> used automatically by beeline under the covers.



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