[jira] [Resolved] (IMPALA-10962) Toolchain Python loses readline functionality on Ubuntu 20.04

["Joe McDonnell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-10962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe McDonnell resolved IMPALA-10962.
------------------------------------
    Fix Version/s: Impala 4.2.0
       Resolution: Fixed

We think this was fixed by building the toolchain on Ubuntu 20.

> Toolchain Python loses readline functionality on Ubuntu 20.04
> -------------------------------------------------------------
>
>                 Key: IMPALA-10962
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10962
>             Project: IMPALA
>          Issue Type: Bug
>    Affects Versions: Impala 4.0.0
>            Reporter: Laszlo Gaal
>            Assignee: Joe McDonnell
>            Priority: Critical
>             Fix For: Impala 4.2.0
>
>
> Toolchain Python lacks {{readline}} functionality when running on Ubuntu 20.04.
> The most visible corollary is that {{impala-shell}} loses command-line editing capabilities as well.
> This happens because the Impala project currently uses UBuntu 18 binaries when it detects a Ubuntu 20 platform (see IMPALA-10199). Toolchain Python built on Ubuntu 18 binds to {{libreadline.so.7}}, which doesn't exist on Ubuntu 20. only the {{libreadline.so.8}} is provided.
> The workaround is relatively easy; execute as {{root}}:
> {code:java}
> # cd /lib/x86_64-linux-gnu
> # ln -s libreadline.so.8 libreadline.so.7{code}
> but this is not obvious, and Impala contributors should not be forced to execute this.



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