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Home > Archive > Slony1 PostgreSQL Replication > January 2006 > Check for "which node is current master?"
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| Author |
Check for "which node is current master?"
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| Ujwal S. Setlur 2006-01-31, 8:25 pm |
| Hi,
My application needs to figure out which node is
currently the master, i.e. writable. Is there an easy
check for that? My app's interface to the db is C
through libpq.
Thanks,
Ujwal
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| Christopher Browne 2006-01-31, 8:25 pm |
| Ujwal S. Setlur wrote:
>Hi,
>
>My application needs to figure out which node is
>currently the master, i.e. writable. Is there an easy
>check for that? My app's interface to the db is C
>through libpq.
>
>
Nodes are just nodes; they have no inherent "master" or "slave" role.
You can check to see which node is the origin for a given replication
set; that would involve looking in _clusterschema.sl_set where set_id =
some set you care about.
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