[Postgres-xc-developers] pgxc_ctl C version in progress

[Koichi S. <koi...@gm...>]

Hello,

I'm pleased to publish C version of pgxc_ctl in progress in
https://github.com/postgres-xc/postgres-xc/tree/pgxc_ctl/contrib/pgxc_ctl

This needs much more improvement but it just works fine for basic
configuration, without slave, so far.   Good features to this version
are:

1. Maintains configuration file in bash.
2. More flexible environment, including log.
3. If possible, shell scripts including scp and ssh will be done in
parallel.   C version is quite faster than bash version mainly for
this reason.
4. Log is improved much.   Now more than one pgxc_ctl session can
write to the same log and the log will be controlled by advisory lock
so that log lines will not be messed up by another pgxc_ctl session.
5. Utilities to clean up gtm (unregister failed node) is now
integrated into pgxc_ctl.   pgxc_monitor was also integrate so that
pgxc_ctl can run without any other modules in contrib.

Because original bash version was more than 5k lines, C version is
even bigger.   I think I should maintain bash version as well for
people to learn what to do in various XC cluster operation.   Further,
now Abbas is implementing node addition/removal which should
be supported by pgxc_ctl as well.

Sorry, no document is available so far.   It is very similar to bash
version but be a bit different.

After I do necessary work, I'd like to add this to contrib.

Regards;
----------
Koichi Suzuki