Creating insert_lock table
pgpool-II 3.6.2 Documentation | |||
---|---|---|---|
Prev | Up | Chapter 3. Installation of Pgpool-II | Next |
If you are not going to use the native replication mode, you can skip this section.
If you plan to use native replication mode and insert_lock, creating pgpool_catalog.insert_lock table for mutual exclusion is strongly recommended. Without this, insert_lock works so far. However in that case Pgpool-II locks against the insert target table. This behavior is same table lock conflicts with VACUUM , so INSERT processing may be thereby kept waiting for a long time.
$ cd pgpool-II-x.x.x/sql $ psql -f insert_lock.sql template1
Executing insert_lock.sql should be performed on every databases accessed via Pgpool-II . You do not need to do this for a database created after the execution of psql -f insert_lock.sql template1 , as this template database will be cloned to create new databases.