Use separate disks for WAL and data#984
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One of the performance optimization technique for insertion according to Timescaledb blog is to use separate disks for WAL & data. According to blog [1], ``` Use separate disks for WAL and data ----------------------------------- While this is a more advanced optimization that isn't always needed, if your disk becomes a bottleneck, you can further increase throughput by using a separate disk (tablespace) for the database's write-ahead log (WAL) and data. ``` [1] https://www.timescale.com/blog/13-tips-to-improve-postgresql-insert-performance/
Simplified logic of wal_fast can be found here [1] which is as follows: ``` WAL_FAST=$(dirname "$DATA_DIR")/wal_fast ``` Hence, aligning with the same logic to keep things simple. This way, it will not conflict with separate WAL directory too. [1] https://github.com/anasanjaria/spilo/blob/master/postgres-appliance/scripts/basebackup.sh
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@hughcapet Could someone please review my PR as it's opened for a very long time? |
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This is a great feature? Can we give this a shot and take it from here? |
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One of the performance optimization technique for insertion according to Timescaledb blog is to use separate disks for WAL & data.
According to blog [1],
[1] https://www.timescale.com/blog/13-tips-to-improve-postgresql-insert-performance/