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Merge pull request #1091 from wol-win/postgres_documentation

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Update PostgreSQL Maintenance page
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Slavi Pantaleev 2021-05-26 15:01:14 +03:00 committed by GitHub
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docs/maintenance-postgres.md
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@ -108,11 +108,33 @@ These are not recommended values and they may not work well for you. This is jus
Here is an example config for a small 2 core server with 4GB of RAM and SSD storage:
```
matrix_postgres_process_extra_arguments: [
"-c 'shared_buffers=128MB'",
"-c 'effective_cache_size=2304MB'",
"-c 'effective_io_concurrency=100'",
"-c 'random_page_cost=2.0'",
"-c 'min_wal_size=500MB'",
"-c shared_buffers=128MB",
"-c effective_cache_size=2304MB",
"-c effective_io_concurrency=100",
"-c random_page_cost=2.0",
"-c min_wal_size=500MB",
]
```
Here is an example config for a 4 core server with 8GB of RAM on a Virtual Private Server (VPS); the paramters have been configured using https://pgtune.leopard.in.ua with the following setup: PostgreSQL version 12, OS Type: Linux, DB Type: Mixed type of application, Data Storage: SSD storage:
```
matrix_postgres_process_extra_arguments: [
"-c max_connections=100",
"-c shared_buffers=2GB",
"-c effective_cache_size=6GB",
"-c maintenance_work_mem=512MB",
"-c checkpoint_completion_target=0.9",
"-c wal_buffers=16MB",
"-c default_statistics_target=100",
"-c random_page_cost=1.1",
"-c effective_io_concurrency=200",
"-c work_mem=5242kB",
"-c min_wal_size=1GB",
"-c max_wal_size=4GB",
"-c max_worker_processes=4",
"-c max_parallel_workers_per_gather=2",
"-c max_parallel_workers=4",
"-c max_parallel_maintenance_workers=2",
]
```