79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
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defaults = {
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'backups': {
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'paths': {
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'/var/lib/postgresql',
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},
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},
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'bash_functions': {
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'pg_query_mon': "watch -n 2 \"echo \\\"SELECT pid, age(clock_timestamp(), query_start), usename, query FROM pg_stat_activity WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' ORDER BY query_start desc;\\\" | psql postgres\""
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},
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'postgresql': {
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'max_connections': 100,
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'autovacuum_max_workers': 3,
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'maintenance_work_mem': 64,
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'work_mem': 4,
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'shared_buffers': 128,
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'temp_buffers': 8,
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'slow_query_log_sec': 0,
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},
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}
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@metadata_reactor.provides(
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'apt/repos/postgresql',
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'postgresql/version',
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)
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def default_postgresql_version_for_debian(metadata):
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# <https://packages.debian.org/search?keywords=postgresql>
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versions_in_debian = {
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'11': '13', # bullseye
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}
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os = str(node.os_version[0])
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version_to_be_installed = metadata.get('postgresql/version', versions_in_debian[os])
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if version_to_be_installed != versions_in_debian[os]:
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return {
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'apt': {
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'repos': {
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'postgresql': {
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'items': {
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'deb https://apt.postgresql.org/pub/repos/apt/ {os_release}-pgdg main',
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},
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},
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},
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},
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'postgresql': {
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'version': version_to_be_installed,
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},
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}
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return {
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'postgresql': {
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'version': version_to_be_installed,
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},
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}
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@metadata_reactor.provides(
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'postgresql/effective_io_concurrency',
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'postgresql/max_worker_processes',
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'postgresql/max_parallel_workers',
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'postgresql/max_parallel_workers_per_gather',
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)
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def worker_processes(metadata):
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return {
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'postgresql': {
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# This is the amount of parallel I/O Operations the
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# postgresql process is allowed to do on disk. We set
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# this to max_connections by default.
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'effective_io_concurrency': metadata.get('postgresql/max_connections'),
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# Try to request one worker process per 10 configured
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# connections. The default is 8 for both of these values.
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'max_worker_processes': int(metadata.get('postgresql/max_connections')/10),
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'max_parallel_workers': int(metadata.get('postgresql/max_connections')/10),
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# default 2
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'max_parallel_workers_per_gather': max(int(metadata.get('postgresql/max_connections')/100), 2),
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},
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}
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