Fatal error checksumming table test.member: I need a master_status argument

I want to check the consistency of a Galera Cluster, but when I run pt-table-checksum I get errors like:

Fatal error checksumming table test.member: I need a master_status argument at /usr/bin/pt-table-checksum line 5500.

How to prevent this error? Can I just ignore it, or are the consistency results now invalid?

$ PTDEBUG=1 pt-table-checksum --recursion-method dsn=h=127.0.0.1,D=percona,t=dsns --ask-pass --ignore-databases=mysql,percona

Debian GNU/Linux 9.4 (stretch)
mariadb-server 10.1.26-0+deb9u1
galera-3 25.3.19-2
percona-toolkit 3.0.12-1.stretch

I’ve attached the debug log.

Thanks, Mark

pt-checksum-log.txt (90.1 KB)

Bug is listed here: https://jira.percona.com/browse/PT-1630