postgres全量同步，数据过大导致错误

[evilmao]

pg全量同步测试时，发现当数据大小超过一定大小。目前在20w+时，

生产者会有如下报错

配置文件如下：

core:
  debug: False # when set True, will display sql information.
  insert_num: 2000 # how many num to submit,recommend set 20000 when production
  insert_interval: 3 # how many seconds to submit,recommend set 60 when production
  monitoring: false

redis:
  host: redis
  port: 16379
  db: 0
  password:
  prefix: synch
  sentinel: false # enable redis sentinel
  sentinel_hosts: # redis sentinel hosts
    - 127.0.0.1:5000
  sentinel_master: master
  queue_max_len: 200000 # stream max len, will delete redundant ones with FIFO

source_dbs:
  - db_type: postgres
    alias: postgres_db
    broker_type: kafka # current support redis and kafka
    host: 127.0.0.1
    port: 15433
    user: postgres
    password: Tianyan123!
    databases:
      - database: hwop01v_backup
        auto_create: true
        tables:
          - table: alarms_2021_08
            auto_full_etl: true
            clickhouse_engine: ReplacingMergeTree
            sign_column: sign
            version_column:
            partition_by:
            settings:

clickhouse:
  # shard hosts when cluster, will insert by random
  hosts:
    - 127.0.0.1:19000
  user: default
  password: 'Tianyan123!'
  cluster_name:  # enable cluster mode when not empty, and hosts must be more than one if enable.
  distributed_suffix: _all # distributed tables suffix, available in cluster

kafka:
  servers:
    - 127.0.0.1:9092
  topic_prefix: synch

劳烦帮忙看下！非常感谢！