Laszlo Gaal created IMPALA-10962:
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Summary: 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
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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