when the data directory is empty, pg_rman init will segfault

[zhangdl688]

I execute "pg_rman -B backup_path -D data_path init", but data_path is an empty directory.
Then I have a segfault

[MoonInsung]

Dear @zhangdl688

Thank you for reporting.
Yes. I agree with this issue.

When init.c calls the get_controlfile function of the PostgreSQL core(src/common/controldata_utils.c),
if the database cluster is empty, aborted by signal6 occurs.
We need to check if there is a way to solve this problem.

Best regards.

[HIghGo-coder]

Dear @MoonInsung

Hello, the above problem still exists today, coredump error will be thrown for PostgresSQL in DEBUG mode. The reason is that the PostgresSQL has changed, and the function get_controlfile parameter has changed. I'm wondering why this isn't fixed, is there some other reason? I hope I can help you fix this.Looking forward to your reply.

Best regards.

[HIghGo-coder]

Dear@zacharyxz
You do solve the problem at init, but for other commands, similar to the backup command, the above wen'ti will still be triggered.

Best regards.
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