replica: add postgres configuration files into long-running branch

codeinsights-db/conf/postgresql.conf

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+#------------------------------------------------------------------------------
+# POSTGRESQL DEFAULT CONFIGURATION
+#------------------------------------------------------------------------------
+
+# Below is PostgreSQL default configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+listen_addresses = '*'
+max_connections = 100
+shared_buffers = 128MB
+dynamic_shared_memory_type = posix
+max_wal_size = 1GB
+min_wal_size = 80MB
+log_timezone = 'UTC'
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'
+
+
+#------------------------------------------------------------------------------
+# SOURCEGRAPH RECOMMENDED OPTIONS
+#------------------------------------------------------------------------------
+
+# Below is Sourcegraph recommended Postgres configuration based on the default resource configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+shared_buffers = 509546kB
+work_mem = 3184kB
+maintenance_work_mem = 254773kB
+effective_io_concurrency = 200
+max_worker_processes = 19
+max_parallel_workers_per_gather = 4
+max_parallel_workers = 8
+wal_buffers = 15285kB
+min_wal_size = 512MB
+checkpoint_completion_target = 0.9
+random_page_cost = 1.1
+effective_cache_size = 1492MB
+default_statistics_target = 500
+autovacuum_max_workers = 10
+autovacuum_naptime = 10
+shared_preload_libraries = ''
+max_locks_per_transaction = 64
+
+
+#------------------------------------------------------------------------------
+# CUSTOMIZED OPTIONS
+#------------------------------------------------------------------------------
+
+# Add your customization here
+# Learn more: https://docs.sourcegraph.com/admin/config/postgres-conf

codeintel-db/conf/postgresql.conf

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+#------------------------------------------------------------------------------
+# POSTGRESQL DEFAULT CONFIGURATION
+#------------------------------------------------------------------------------
+
+# Below is PostgreSQL default configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+listen_addresses = '*'
+max_connections = 100
+shared_buffers = 128MB
+dynamic_shared_memory_type = posix
+max_wal_size = 1GB
+min_wal_size = 80MB
+log_timezone = 'UTC'
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'
+
+
+#------------------------------------------------------------------------------
+# SOURCEGRAPH RECOMMENDED OPTIONS
+#------------------------------------------------------------------------------
+
+# Below is Sourcegraph recommended Postgres configuration based on the default resource configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+shared_buffers = 1GB
+work_mem = 5MB
+maintenance_work_mem = 250MB
+temp_file_limit = 20GB
+bgwriter_delay = 50ms
+bgwriter_lru_maxpages = 200
+effective_io_concurrency = 200
+max_worker_processes = 4
+max_parallel_maintenance_workers = 4
+max_parallel_workers_per_gather = 2
+max_parallel_workers = 4
+wal_buffers = 16MB
+max_wal_size = 8GB
+min_wal_size = 2GB
+random_page_cost = 1.1
+effective_cache_size = 3GB
+
+
+#------------------------------------------------------------------------------
+# CUSTOMIZED OPTIONS
+#------------------------------------------------------------------------------
+
+# Add your customization here
+# Learn more: https://docs.sourcegraph.com/admin/config/postgres-conf

pgsql/conf/postgresql.conf

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+#------------------------------------------------------------------------------
+# POSTGRESQL DEFAULT CONFIGURATION
+#------------------------------------------------------------------------------
+
+# Below is PostgreSQL default configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+listen_addresses = '*'
+max_connections = 100
+shared_buffers = 128MB
+dynamic_shared_memory_type = posix
+max_wal_size = 1GB
+min_wal_size = 80MB
+log_timezone = 'UTC'
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'
+
+
+#------------------------------------------------------------------------------
+# SOURCEGRAPH RECOMMENDED OPTIONS
+#------------------------------------------------------------------------------
+
+# Below is Sourcegraph recommended Postgres configuration based on the default resource configuration.
+# You should apply your own customization in the CUSTOMIZED OPTIONS section below
+# to avoid merge conflict in the future.
+
+shared_buffers = 1GB
+work_mem = 5MB
+maintenance_work_mem = 250MB
+temp_file_limit = 20GB
+bgwriter_delay = 50ms
+bgwriter_lru_maxpages = 200
+effective_io_concurrency = 200
+max_worker_processes = 4
+max_parallel_maintenance_workers = 4
+max_parallel_workers_per_gather = 2
+max_parallel_workers = 4
+wal_buffers = 16MB
+max_wal_size = 8GB
+min_wal_size = 2GB
+random_page_cost = 1.1
+effective_cache_size = 3GB
+
+
+#------------------------------------------------------------------------------
+# CUSTOMIZED OPTIONS
+#------------------------------------------------------------------------------
+
+# Add your customization here
+# Learn more: https://docs.sourcegraph.com/admin/config/postgres-conf