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Can't locate lib/mtr_process.pl in @INC on Ubuntu 18.04.1 #885

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spetrunia opened this issue Oct 15, 2018 · 1 comment
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Can't locate lib/mtr_process.pl in @INC on Ubuntu 18.04.1 #885

spetrunia opened this issue Oct 15, 2018 · 1 comment
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An attempt to run mysql-test-run on Ubuntu 18.04.1 produces this error:

Can't locate lib/mtr_process.pl in @inc (@inc contains: lib /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at ./mtr line 105.

This is because mysql-test-run.pl has this

use lib "lib";
...
require "lib/mtr_process.pl";

Older versions of Perl have "." (current directory) in their @INC by default. Newer Perl version do not have "." in in @INC, and so one gets the error.
@spetrunia spetrunia self-assigned this Oct 15, 2018
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spetrunia commented Oct 15, 2018 •
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MariaDB's solution to this was to use

require "mtr_process.pl";

instead, see MariaDB/server@f77bd5f

MySQL 8.0 has this:

push @INC, ".";

which also fixes the problem

spetrunia added a commit to spetrunia/mysql-5.6 that referenced this issue Oct 15, 2018
@spetrunia
Issue facebook#885: Can't locate lib/mtr_process.pl in @inc on Ubuntu…
737de39 
… 18.04.1

Add "." to @inc array like upstream does.
abhinav04sharma pushed a commit to abhinav04sharma/mysql-5.6 that referenced this issue Nov 29, 2018
@trosten
Bug#25604587 BACKPORT BUG#24947217 TO 5.6 AND 5.7
4848c36 
Summary:
Change is needed in MySQL 5.6 and 5.7 as well.

Should resolve facebook#885.

Test Plan: mtr

Reviewers: mung, rtm

Reviewed By: mung

Subscribers: butterflybot, aubertg, webscalesql-eng@fb.com

Differential Revision: https://phabricator.intern.facebook.com/D10407251

Tags: perl, aubertg

Signature: 10407251:1539714602:3fcc6db698efb7bc8e895daa5661edab30edf0f9
@hustjieke hustjieke mentioned this issue Jun 21, 2022
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