February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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How to do it...
For this recipe, we will need two PostgreSQL servers: pg1 and pg2, where pg1 is the currently active node. Follow these steps as the root user on the system indicated to permanently remove pg2 from the DRBD cluster:
- Execute this command on both pg1 and pg2 to disconnect DRBD:
drbdadm disconnect pg
- Invalidate the data on the remote node with drbdadm on pg1:
drbdadm invalidate-remote pg
- Invalidate the data on the current node with drbdadm on pg2:
drbdadm invalidate pg
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