Synch

GitHub - long2ice/synch: Sync data from the other DB to ClickHouse(cluster)

 环境：

mysql5.7	redis >= 5.0	clickhouse21.2	postgresql	python3
binlog_format=row	XREAD	default	pg_config	synch

1：安装clickhouse

rpm下载地址：

https://repo.yandex.ru/clickhouse/rpm/stable/x86_6

安装：rpm -ivh ./*.rpm

配置：

/etc/clickhouse-server/config.xml
/etc/clickhouse-server/users.xml

服务：

systemctl start clickhouse-server

 客户端：

clickhouse-client

环境变量

异常及处理：

/usr/local/python3/bin/python3.7: error while loading shared libraries: libpython3.7m.so.1.0: cannot open shared object file: No such file or directory

升级pip

3：安装synch

安装异常：

需要安装：PostgreSQL，

yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm

yum install -y postgresql13-server

yum install postgresql-devel

psql --version

配置环境变量：

/usr/pgsql-13/bin/pg_config

export PATH=$PATH:/usr/pgsql-13/bin

安装成功：

查看synch

配置synch.yaml

core:
  debug: true # when set True, will display sql information.
  insert_num: 1 # how many num to submit,recommend set 20000 when production
  insert_interval: 1 # how many seconds to submit,recommend set 60 when production
  # enable this will auto create database `synch` in ClickHouse and insert monitor data
  monitoring: true

sentry:
  environment: development
  dsn:

redis:
  host: 127.0.0.1
  port: 6379
  db: 0
  password:
  prefix: synch
  queue_max_len: 200000 # stream max len, will delete redundant ones with FIFO

source_dbs:
  - db_type: mysql
    alias: mysql_db # must be unique
    broker_type: redis # current support redis and kafka
    server_id: 3
    host: 127.0.0.1
    port: 3306
    user: root
    password: "123456"
    # optional, auto get from `show master status` when empty
    init_binlog_file:
    # optional, auto get from `show master status` when empty
    init_binlog_pos:
    skip_dmls: alert # dmls to skip
    skip_delete_tables: # tables skip delete, format with schema.table
    skip_update_tables: # tables skip update, format with schema.table
    databases:
      - database: crm
        # optional, default true, auto create database when database in clickhouse not exists
        auto_create: true
        tables:
          - table: user_log
            # optional, default false, if your table has decimal column with nullable, there is a bug with full data etl will, see https://github.com/ClickHouse/ClickHouse/issues/7690.
            skip_decimal: false # set it true will replace decimal with string type.
            # optional, default true
            auto_full_etl: true # auto do full etl at first when table not exists
            # optional, default ReplacingMergeTree
            clickhouse_engine: ReplacingMergeTree # current support MergeTree, CollapsingMergeTree, VersionedCollapsingMergeTree, ReplacingMergeTree
            # optional
            partition_by: # Table create partitioning by, like toYYYYMM(created_at).
            # optional
            settings: # Table create settings, like index_granularity=8192
            # optional
            sign_column: sign # need when clickhouse_engine=CollapsingMergeTree and VersionedCollapsingMergeTree, no need real in source db, will auto generate in clickhouse
            # optional
            version_column: # need when clickhouse_engine=VersionedCollapsingMergeTree and ReplacingMergeTree(optional), need real in source db, usually is `updated_at` with auto update.
          - table: deptinfo
          - table: user

clickhouse:
  hosts:
    - 127.0.0.1:9000
  user: default
  password: ''
  cluster_name: #perftest_3shards_1replicas
  distributed_suffix: ###_all # distributed tables suffix, available in cluster

#kafka:
#  servers:
#    - kafka:9092
#  topic_prefix: synch

# enable this to send error report, comment or delete these if not.
mail:
  mailhost: smtp.gmail.com
  fromaddr: long2ice@gmail.com
  toaddrs:
    - long2ice@gmail.com
  user: long2ice@gmail.com
  password: "123456"
  subject: "[synch] Error logging report"

4：测试

1：create 。。 if not exists

2：生产

3：消费

5：安装supervisord守护进程

配置

[program:mysql-to-ck-produce]
process_name=%(program_name)s
command=/usr/local/python3/bin/synch -c /etc/synch.yaml --alias mysql_db produce
autostart=true
autorestart=true
redirect_stderr=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stdout_logfile_maxbytes=2048MB
stdout_logfile_backups=20
stopwaitsecs=3600

[program:mysql-to-ck-consume-crm]
process_name=%(program_name)s
command=/usr/local/python3/bin/synch -c /etc/synch.yaml --alias mysql_db consume --schema crm
autostart=true
autorestart=true
redirect_stderr=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stdout_logfile_maxbytes=2048MB
stdout_logfile_backups=20
stopwaitsecs=3600

服务：

日志：