May 2018
Intermediate to advanced
576 pages
30h 25m
English
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition
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How to do it…
There are four main things to check, which are as follows:
- Make sure you run VACUUM on system tables, or enable autovacuum to do this for you.
- Monitor running queries to see how many temporary files are active and how large they are.
- Tune the memory parameters. Think about increasing the temp_buffers parameter, but be careful not to over-allocate memory by doing so.
- Separate the temp table's I/O. In a query-intensive system, you may find that reads/writes to temporary files exceed reads/writes on permanent data tables and indexes. In this case, you should create new tablespace(s) on separate disks, and ensure that the temp_tablespaces parameter is configured to use the additional tablespace(s).
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