Обсуждение: Way to get timeline

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Way to get timeline

От
Vladimir Borodin
Дата:
Hi all.

What is the best way to get current timeline of host? Right now I can imagine two variants:

1. Do checkpoint and read it from control file.
2. Do something like "SELECT substr(pg_xlogfile_name(pg_current_xlog_location()), 1, 8)".

Both variants seem to be a bit tricky. Is there a way better?

Thanks.

--
May the force be with you…

Re: [GENERAL] Way to get timeline

От
Миша Тюрин
Дата:


hi!

from master:

pg_xlogfile_name -- right!

from standby:
using replication prtotocol (example from version 92)

psql -h "$host" -F' ' -c 'IDENTIFY_SYSTEM' 'dbname=replication replication=true'


-- misha

Понедельник, 20 июля 2015, 11:13 +03:00 от Vladimir Borodin <root@simply.name>:

Hi all.

What is the best way to get current timeline of host? Right now I can imagine two variants:

1. Do checkpoint and read it from control file.
2. Do something like "SELECT substr(pg_xlogfile_name(pg_current_xlog_location()), 1, 8)".

Both variants seem to be a bit tricky. Is there a way better?

Thanks.

--
May the force be with you…