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Tungsten Replicator 4 同步数据从mysql

Tungsten Replicator 4 同步数据从mysql

作者: 负二贷 | 来源:发表于2017-12-06 14:53 被阅读0次

    基于https://my.oschina.net/wanglin123/blog/524123这篇文章修改,升级下软件版本

    一 规划主机:

    192.168.20.146 #mysql主机 (事先安装好,mysql5.7 )
    192.168.20.140 #mongodb主机 (事先安装好,mongodb3.4.10)
    

    二 前置条件:(147和140)

    1 创建tungsten用户

    [root@localhost ~] useradd tungsten
    [root@localhost ~] passwd tungsten
    

    2 将tungsten账户添加到 mysql 用户组里

    146主机:
    [root@localhost ~] sudo usermod -G mysql tungsten
    
    140主机
    [root@localhost ~] sudo usermod -G mongod tungsten
    

    3 修改sudoers权限,并且让 tungsten 用户使用 sudo 命令时免密码

    [root@localhost ~] chmod 740 /etc/sudoers
    [root@localhost ~] vi /etc/sudoers
    添加如下一行:
    tungsten        ALL=(ALL)       NOPASSWD: ALL
    

    4 切换到 tungsten 用户下

    [root@localhost ~] su - tungsten
    

    5 切换到 tungsten 用户后,创建密钥对。默认在/home/tungsten/.ssh 目录下

    [tungsten@localhost ~] ssh-keygen -t rsa
    

    6 修改 limit 文件

    [tungsten@localhost ~] vi /etc/security/limits.conf
    
    #添加下面一行:
    * - nofile 65535
    

    注:这种方式需要重启才能生效,使用如下方式修改ulimit,则可以即时生效:

    [tungsten@localhost ~] ulimit -n65535
    

    7 检查修改是否成功

    [tungsten@localhost ~] ulimit -n 
    65535
    

    8 配置hosts

    [tungsten@localhost ~] sudo vi /etc/hosts
    127.0.0.1 localhost
    192.168.20.140 node2
    192.168.20.147 mongo
    

    9 测试主机

    [tungsten@localhost ~] uname -n
    node2
    

    10 测试ip地址

    [tungsten@localhost ~] hostname --ip-address
    

    11 防火墙设置

    [tungsten@localhost ~] iptables -A INPUT -i lo -m state --state NEW -j ACCEPT
    

    12 把生成的公钥和私钥拷贝到 tungsten用户的主目录下 。默认就在用户主目录

    [tungsten@localhost ~] cp .ssh/id_rsa.pub .ssh/id_rsa /home/tungsten/.ssh
    13 把公钥放到 .ssh/authorized_keys文件中,146 的公钥放到 140,140 的公钥放到 146

    [tungsten@localhost ~] cat .ssh/id_rsa.pub >> .ssh/authorized_keys
    

    14 修改权限

    [tungsten@localhost ~] chmod 700 ~/.ssh
    [tungsten@localhost ~] chmod 600 ~/.ssh/*
    

    15 测试主机间ssh

    [tungsten@localhost ~] ssh tungsten@node2
    

    16 修改mysql配置,注意,binlog-fomat 必须 是 row 格式的,如果该mysql 是 slave,则需要在 my.cnf 里 加上 log-slave-updates=TRUE,否则,slave 的变化信息都在 relay-relay-bin.0000*.log 文件中

    [tungsten@localhost ~] vi /etc/my.cnf
    
    server-id = 128
    open_files_limit = 65535
    log-bin = mysql-bin
    sync_binlog = 1
    max_allowed_packet = 52m
    default-storage-engine = InnoDB
    innodb_flush_log_at_trx_commit = 2
    binlog-format = row
    binlog-row-image = full
    

    17 登录mysql,创建用于 tungsten 复制的 mysql 用户

    [tungsten@localhost ~] /usr/bin/mysql
    
    mysql> grant all privileges on *.* to tungsten_alpha@'%' identified by 'ts' with grant option;
    mysql> flush privileges;
    

    三 安装服务:

    安装服务之前请先安装ruby环境:

    yum install -y ruby rubygems ruby-devel puppet
    

    上面这句shell从官网的PDF里面拷贝出来的直接下载运行的,发现了puppet在这当中有什么用我没发现,大家可以不按照官网手册来,但是要安装ruby的基础环境,这里提供下官网手册地址:

    https://docs.continuent.com/tungsten-replicator-4.0.pdf

    1 创建 tungsten-replication 软件主目录

    [tungsten@localhost ~] sudo mkdir -p /opt/continuent/software
    [tungsten@localhost ~] sudo chown -R tungsten /opt/continuent
    [tungsten@localhost ~] sudo chmod 700 /opt/continuent
    

    2 把下载好的 tungsten-replicator-oss-4.0.1-123.tar.gz 包上传到 software 目录

    [tungsten@localhost ~] cd /opt/continuent/software
    [tungsten@node2 software] ll 
    [tungsten@node2 software] tungsten-replicator-oss-4.0.1-123.tar.gz
    [tungsten@node2 software] tar -zxvf tungsten-replicator-oss-4.0.1-123.tar.gz
    [tungsten@node2 software] cd tungsten-replicator-oss-4.0.1-123
    [tungsten@node2 tungsten-replicator-oss-4.0.1-123]
    

    146主机(mysql)上:

    [tungsten@host1 tungsten-replicator-oss-4.0.1-123] ./tools/tpm install alpha \
        --info \
        --master=192.168.20.140 \
        --datasource-mysql-conf=/etc/my.cnf \
        --enable-heterogenous-master=true \
        --replication-user=tungsten_alpha \
        --replication-password=ts \
        --install-directory=/opt/continuent/alpha \
        --start-and-report
    

    140主机(mongo)上:

    [tungsten@mongo tungsten-replicator-oss-4.0.1-123]./tools/tpm install alpha \
        --info \
        --datasource-type=mongodb \
        --master=192.168.20.146 \
        --members=192.168.20.140 \
        --enable-heterogenous-slave=true \
        --topology=master-slave \
        --install-directory=/opt/continuent/alpha \
        --start-and-report
    

    3 如果两个主机的 state 都是 online 说明 两个主机的 tungsten-replicator 都正常运行了,通过下面的命令查看 tungsten 状态

    [tungsten@mongo tungsten-replicator-oss-4.0.1-123] /opt/continuent/alpha/tungsten/tungsten-replicator/bin/trepctl status
    
    Processing status command...
    NAME                     VALUE
    ----                     -----
    appliedLastEventId     : node2-bin.000008:0000000042692378;-1
    appliedLastSeqno       : 8582
    appliedLatency         : 0.488
    autoRecoveryEnabled    : false
    autoRecoveryTotal      : 0
    channels               : 1
    clusterName            : alpha
    currentEventId         : NONE
    currentTimeMillis      : 1512541556477
    dataServerHost         : 192.168.20.140
    extensions             : 
    host                   : 192.168.20.140
    latestEpochNumber      : 0
    masterConnectUri       : thl://192.168.20.146:2112/
    masterListenUri        : null
    maximumStoredSeqNo     : 8582
    minimumStoredSeqNo     : 0
    offlineRequests        : NONE
    pendingError           : NONE
    pendingErrorCode       : NONE
    pendingErrorEventId    : NONE
    pendingErrorSeqno      : -1
    pendingExceptionMessage: NONE
    pipelineSource         : thl://192.168.20.146:2112/
    relativeLatency        : 42.461
    resourcePrecedence     : 99
    rmiPort                : 10000
    role                   : slave
    seqnoType              : java.lang.Long
    serviceName            : alpha
    serviceType            : local
    simpleServiceName      : alpha
    siteName               : default
    sourceId               : 192.168.20.140
    state                  : ONLINE
    timeInStateSeconds     : 1211739.234
    timezone               : GMT
    transitioningTo        : 
    uptimeSeconds          : 1211740.107
    useSSLConnection       : false
    version                : Tungsten Replicator 4.0.1 build 123
    Finished status command...
    

    4 上一步我们通过 状态命令可以看到 140 tungsten 默认抓取 mysql 的 tungsten_alpha 库,该库的命名规则是 tungsten_服务名,比如,我们 install 的时候发布的服务名字为 alpha,那么安装完成后,mysql 中会自动创建一个 名称 为 tungsten_alpha的库

    5 因为业务需要,我们需要同步自己已有的库,通过下面命令来指定具体的库

    [tungsten@mongo tungsten-replicator-oss-4.0.1-123] ./tools/tpm update alpha --dataservice-schema=huobi
    

    注:alpha 是install时指定的 dataservice 名称
    6 又因为业务需要,我们可能只同步指定的库的 某些表的数据,非不是全部表,做如下配置:

    ON Mysql (146主机上)

    [tungsten@node2 tungsten-replicator-oss-4.0.1-123] ./tools/tpm update huobi \
        --repl-svc-extractor-filters=replicate \
        --property=replicator.filter.replicate.do=huobi.table1,huobi.table2,huobi.table3
    

    注:mysql端,即数据抓取端,使用 repl-svc-extractor-filters 过滤器
    On Mongo(140主机上)

    [tungsten@host2 tungsten-replicator-oss-4.0.1-123] ./tools/tpm update huobi \
        --repl-svc-applier-filters=replicate \
        --property=replicator.filter.replicate.do=huobi.table1,huobi.table2,huobi.table3
    

    注:mongo端,即数据重入端,使用 repl-svc-applier-filters 过滤器
    7 关于tungsten 工具的使用可以通过命令查看

    [tungsten@node2 tungsten-replicator-oss-4.0.1-123] ./tools/tpm -h
    
    Usage: tpm help [commands,config-file,template-file] [general-options] [command-options]
    ...........
    ...........
    ----------------------------------------------------------------------------------------------------
    Commands:
    configure                     Update the data service settings in the global configuration
    delete-service                Delete a replication service from this host
    diag                          Package diagnostic information from the cluster to the current machine
    diff                          Output the manual changes that have been made to configuration files.
    dump                          Display the 'tpm configure' commands required to recreate the configuration
    firewall                      Print firewall information for the listed dataservices
    help                          Display a list of all commands available in tpm
    install                       Install Tungsten with the current configuration and any options specified at runtime.
    mysql                         Open a terminal to the DBMS
    promote                       Take a previously prepared directory and make it active.  You should run the prepare command prior to running promote.
    query                         Get information about the configuration, topology and version of this directory
    reset                         Reset the cluster on each host
    reset-thl                     Reset the THL on each host
    update
                                  Updates an existing installation of Tungsten. If not arguments are specified, the local configuration is used to install. If you specify --user, --hosts and --directory; this command will get the
                                  current configuration from each host and continue.
    validate                      Validate Tungsten with the current configuration and any options specified at runtime before installing.
    validate-update               Validate before updating an existing Tungsten installation
    

    8 在使用tungsten同步数据时,如果因为tungsten-replicator服务挂掉,那么tungsten服务重启的时候回从挂断点的地方继续开始同步。而针对master的tungsten服务,如果想指定binlog的位点,可以如下:

    [tungsten@node2 tungsten-replicator-oss-4.0.1-123] ./tungsten-replicator/bin/trepctl offline
    [tungsten@node2 tungsten-replicator-oss-4.0.1-123] ./tungsten-replicator/bin/trepctl online -from-event mysql-bin.000006:1029
    

    9 同步成功以后可以看到你的DB下游根据每张表建立的集合,我无法上传图,哈哈,,请原谅下

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