python scripts core dump with non-default locale

[tarzanek]

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Installation details
Scylla version (or git commit hash): 4.2.rc4-0.20200907.bf0c493c28
Cluster size: 3
OS (RHEL/CentOS/Ubuntu/AWS AMI): Centos 7

Hardware details (for performance issues) Delete if unneeded
Platform (physical/VM/cloud instance type/docker):
Hardware: sockets= cores= hyperthreading= memory=
Disks: (SSD/HDD, count)

[scylla@scylla ~]$  sudo /usr/lib/scylla/node_exporter_install --help
usage: node_exporter_install [-h] [-F]

Download and install prometheus node_exporter

optional arguments:
  -h, --help   show this help message and exit
  -F, --force  Force re-installation when node_exporter is already installed
[scylla@scylla ~]$ scylla --version
4.2.rc4-0.20200907.bf0c493c28
[scylla@scylla ~]$ locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
[scylla@scylla ~]$ export LC_ALL=en_US
[scylla@scylla ~]$ locale
LANG=en_US.UTF-8
LC_CTYPE="en_US"
LC_NUMERIC="en_US"
LC_TIME="en_US"
LC_COLLATE="en_US"
LC_MONETARY="en_US"
LC_MESSAGES="en_US"
LC_PAPER="en_US"
LC_NAME="en_US"
LC_ADDRESS="en_US"
LC_TELEPHONE="en_US"
LC_MEASUREMENT="en_US"
LC_IDENTIFICATION="en_US"
LC_ALL=en_US
[scylla@scylla ~]$  sudo /usr/lib/scylla/node_exporter_install --help
Segmentation fault

[tarzanek]

I suppose the same problem happens for any other relocatable python scripts

[tarzanek]

quick workaround is of course
export LC_ALL=en_US.UTF-8

[avikivity]

Yes, we should just put that into the thunk.

[avikivity]

Backported to 4.0, 4.1, 4.2.