Jonathan Tripathy wrote on 01.11.2010 21:12:
>>
>> 9.0 has streaming replication and "Hot Standby"
>>
>> http://www.postgresql.org/docs/current/static/hot-standby.html
>> http://www.postgresql.org/docs/current/static/warm-standby.html#STREAMING-REPLICATION
>>
>>
> But does that not only allow "read-only" things to work on the standby?
>
But you didn't ask for read/write on the standby, only for a standby that can take of the master once the master fails:
"must support INSERTS and UPDATES as well (once the master has failed)"
That's exactly what the hot standby does: As long as it is in standby mode it's read-only.
Once the failover has happened the standby is the new master and will allow read/write access.
Thomas