记忆正在泄漏Docker中的Postgres

Question

我为公司服务进行负载测试。 撰写版本：Docker撰写版本v2.4.1 我对DB的组合：

version: '3.4'
x-check: &default-healthcheck
  healthcheck:
    test: [ "CMD", "/data/.prepare" ]
    interval: 30s
    timeout: 30s

services:
  postgres-api:
    image: postgres:11
    container_name: 'load-POSTGRES-API'
    restart: unless-stopped
    environment:
      - POSTGRES_USER=test
      - POSTGRES_PASSWORD=test
    command: [
      "postgres",
      "-c",
      "log_statement=all",
      "-c",
      "log_destination=stderr",
      "-c",
      "max_connections=50",
      "-c",
      "shared_buffers=1GB",
      "-c",
      "effective_cache_size=4GB",
      "-c",
      "work_mem=16MB",
      "-c",
      "maintenance_work_mem=512MB",
      "-c",
      "random_page_cost=1.1",
      "-c",
      "temp_file_limit=10GB",
      "-c",
      "log_min_duration_statement=200ms",
      "-c",
      "idle_in_transaction_session_timeout=10s",
      "-c",
      "lock_timeout=1s",
      "-c",
      "statement_timeout=60s",
      "-c",
      "shared_preload_libraries=pg_stat_statements",
      "-c",
      "pg_stat_statements.max=10000",
      "-c",
      "pg_stat_statements.track=all"
    ]
    ports:
      - "${EXT_IP}:${POSTGRES_EXPOSE_API}"
    volumes:
      - ./postgres-l3/data:/data:rw
    deploy:
      resources:
        limits:
          cpus: '1'
          memory: 4G
        reservations:
          memory: 256M
    <<: *default-healthcheck

分配的内存持续5-10分钟（取决于负载），然后发生溢出，服务不会连接到数据库，我观察到错误：

"message":"the database system is in recovery mode"

连接丢失了，清除了数据库内存和数据库内存开始迅速融化。 所有桌子的大小为〜50MB。

如何解决？它的正常程度如何？