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Tom Swartz: Tuning Your Postgres Database for High Write Loads from Planet PostgreSQL

Matthew Emerick

60 min read
2020-10-14 16:47:45

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As a database grows and scales up from a proof of concept to a full-fledged production instance, there are always a variety of growing pains that database administrators and systems administrators will run into.

Very often, the engineers on the Crunchy Data support team help support enterprise projects which start out as small, proof of concept systems, and are then promoted to large scale production uses. As these systems receive increased traffic load beyond their original proof-of-concept sizes, one issue may be observed in the Postgres logs as the following:

LOG:  checkpoints are occurring too frequently (9 seconds apart)
HINT:  Consider increasing the configuration parameter "max_wal_size".
LOG:  checkpoints are occurring too frequently (2 seconds apart)
HINT:  Consider increasing the configuration parameter "max_wal_size".

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