perf(pg_conf):增加、修改pg和tsdb优化的配置项

charts/values.yaml

@@ -59,25 +59,39 @@ postgresql:
     - postgres
     - scada
   parameters:
-    max_connections: 100
-    max_prepared_transactions: 150
-    # This is rather small, but as this Helm Chart may be used to spin up
-    # 1 access node and 4 data nodes on a single minikube/microk8s this is set
-    # to a conservative value
-    shared_buffers: 300MB
-    work_mem: 16MB
+    max_connections: 300
+    max_prepared_transactions: 300
+    effective_cache_size: 96272MB
+    maintenance_work_mem: 2047MB
+    max_worker_processes: 367
+    max_parallel_workers_per_gather: 32
+    max_parallel_workers: 64
+    wal_buffers: 16MB
+    shared_buffers: 32090MB
+    work_mem: 5134kB
+    default_statistics_target: 500
+    random_page_cost: 1.1
+    checkpoint_completion_target: 0.9
+    max_locks_per_transaction: 512
+    autovacuum_max_workers: 10
+    autovacuum_naptime: 10
+    effective_io_concurrency: 256
     log_connections: 'on'
     log_line_prefix: "%t [%p]: [%c-%l] %u@%d,app=%a [%e] "
     log_min_duration_statement: '1s'
     log_statement: ddl
     log_checkpoints: 'on'
     log_lock_waits: 'on'
-    # These values are set as the default data volume size
-    # is small as well.
-    min_wal_size: 256MB
-    max_wal_size: 512MB
+    max_wal_senders: 0
+    wal_level: minimal
+    fsync: false
+    min_wal_size: 512MB
+    wal_writer_delay: 1000
     temp_file_limit: 1GB
     timescaledb.passfile: '/var/lib/postgresql/.pgpass'
+    synchronous_commit: 'off'
+    timescaledb.enable_2pc: false
+    timescaledb.max_background_workers: 300
 
 # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
 nodeSelector: {}