orchestrator部署

场景：

用于管理MySQL高可用

下载jq包
每台orchestrator集群机器上都进行下载。

powershell 复制代码

# wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# rpm -ivh epel-release-latest-7.noarch.rpm
# yum repolist ###检查是否已经添加到源列表
# yum install -y jq

添加域名解析

若Orchestrator启用域名作为管理，编辑/etc/hosts（不采用该方式）

注：若直接用ip管理，不启用域名管理集群，则不需要配置。需要在orchestrator配置文件里设定以下两个参数为：
后端数据库设置

Create database orchestrator;

CREATE USER 'orchestrator'@'%' IDENTIFIED BY 'orchestrator';

GRANT ALL ON orchestrator.* TO 'orchestrator'@'%';
被管理的mysql集群设置

用户授权
CREATE USER 'orchestrator'@'%' IDENTIFIED BY 'orchestrator';
GRANT SUPER, PROCESS, REPLICATION SLAVE, RELOAD ON . TO 'orchestrator'@'%';
GRANT SELECT ON mysql.slave_master_info TO 'orchestrator'@'%';

GRANT SELECT ON performance_schema.replication_group_members TO 'orchestrator'@'%';

设置report_host参数

orchestrator使用ip进行管理，MySQL配置文件需要加report_host参数。

如若出现给定主库，发现不了从库，给被管理的mysql服务配置文件添加"report_host=ip"的参数，然后重启mysql服务生效。

由主库发现从库，由参数DiscoverByShowSlaveHosts控制。如果为true，则会尝试先通过show slave hosts命令去发现从库。

从库设置了正确的report_host，show slave hosts中的host字段显示正确的IP，则直接通过show slave hosts发现从库。

从库没有设置report_host，show slave hosts中的host字段显示为空，则通过processlist发现从库。

配置文件说明

安装包有提供模板

/usr/local/orchestrator/ orchestrator-sample.conf.json ,在模板上根据具体情况进行参数填写，然后重命名orchestrator.conf.json，放到/etc目录下，

需要设置的基本参数及说明如下：

ListenAddress web界面的http端口

MySQLTopologyUser 被管理的MySQL的用户（明文）

MySQLTopologyPassword 被管理的MySQL的密码（密文）

MySQLOrchestratorHost orch后端数据库地址

MySQLOrchestratorPort orch后端数据库端口

MySQLOrchestratorDatabase orch后端数据库名

MySQLOrchestratorUser orch后端数据库用户名（明文）

MySQLOrchestratorPassword orch后端数据库密码（明文）

DefaultInstancePort 被管理MySQL的默认端口

RaftEnabled 是否开启Raft，保证orch的高可用。

RaftDataDir Raft的数据目录

BackendDB 后端数据库类型。

RaftBind Raft 的 bind地址，每台机器填自己的ip

DefaultRaftPort DefaultRaftPort

RaftNodes Raft的节点。

示例：

yaml 复制代码

{
  "Debug": true,
  "EnableSyslog": false,
  "ListenAddress": ":3000",
  "MySQLTopologyUser": "orchestrator",
  "MySQLTopologyPassword": "orch`123qwer",
  "MySQLTopologyCredentialsConfigFile": "",
  "MySQLTopologySSLPrivateKeyFile": "",
  "MySQLTopologySSLCertFile": "",
  "MySQLTopologySSLCAFile": "",
  "MySQLTopologySSLSkipVerify": true,
  "MySQLTopologyUseMutualTLS": false,
  "MySQLOrchestratorHost": "127.0.0.1",
  "MySQLOrchestratorPort": 3305,
  "MySQLOrchestratorDatabase": "orchestrator",
  "MySQLOrchestratorUser": "orchestrator",
  "MySQLOrchestratorPassword": "orchestrator",
  "MySQLOrchestratorCredentialsConfigFile": "",
  "MySQLOrchestratorSSLPrivateKeyFile": "",
  "MySQLOrchestratorSSLCertFile": "",
  "MySQLOrchestratorSSLCAFile": "",
  "MySQLOrchestratorSSLSkipVerify": true,
  "MySQLOrchestratorUseMutualTLS": false,
  "MySQLConnectTimeoutSeconds": 1,
  "DefaultInstancePort": 3305,
  "DiscoverByShowSlaveHosts": true,
  "InstancePollSeconds": 5,
  "DiscoveryIgnoreReplicaHostnameFilters": [
    "a_host_i_want_to_ignore[.]example[.]com",
    ".*[.]ignore_all_hosts_from_this_domain[.]example[.]com",
    "a_host_with_extra_port_i_want_to_ignore[.]example[.]com:3307"
  ],
  "UnseenInstanceForgetHours": 240,
  "SnapshotTopologiesIntervalHours": 0,
  "InstanceBulkOperationsWaitTimeoutSeconds": 10,
  "HostnameResolveMethod": "none",
  "MySQLHostnameResolveMethod": "",
  "SkipBinlogServerUnresolveCheck": true,
  "ExpiryHostnameResolvesMinutes": 60,
  "RejectHostnameResolvePattern": "",
  "ReasonableReplicationLagSeconds": 10,
  "ProblemIgnoreHostnameFilters": [],
  "VerifyReplicationFilters": false,
  "ReasonableMaintenanceReplicationLagSeconds": 20,
  "CandidateInstanceExpireMinutes": 60,
  "AuditLogFile": "",
  "AuditToSyslog": false,
  "RemoveTextFromHostnameDisplay": ".mydomain.com:3306",
  "ReadOnly": false,
  "AuthenticationMethod": "basic",
  "HTTPAuthUser": "orchestrator",
  "HTTPAuthPassword": "orchestrator",
  "AuthUserHeader": "",
  "PowerAuthUsers": [
    "*"
  ],
  "ClusterNameToAlias": {
    "127.0.0.1": "test suite"
  },
  "ReplicationLagQuery": "",
  "DetectClusterAliasQuery": "SELECT SUBSTRING_INDEX(@@hostname, '.', 1)",
  "DetectClusterDomainQuery": "",
  "DetectInstanceAliasQuery": "",
  "DetectPromotionRuleQuery": "",
  "DataCenterPattern": "[.]([^.]+)[.][^.]+[.]mydomain[.]com",
  "PhysicalEnvironmentPattern": "[.]([^.]+[.][^.]+)[.]mydomain[.]com",
  "PromotionIgnoreHostnameFilters": [],
  "DetectSemiSyncEnforcedQuery": "",
  "ServeAgentsHttp": false,
  "AgentsServerPort": ":3001",
  "AgentsUseSSL": false,
  "AgentsUseMutualTLS": false,
  "AgentSSLSkipVerify": false,
  "AgentSSLPrivateKeyFile": "",
  "AgentSSLCertFile": "",
  "AgentSSLCAFile": "",
  "AgentSSLValidOUs": [],
  "UseSSL": false,
  "UseMutualTLS": false,
  "SSLSkipVerify": false,
  "SSLPrivateKeyFile": "",
  "SSLCertFile": "",
  "SSLCAFile": "",
  "SSLValidOUs": [],
  "URLPrefix": "",
  "StatusEndpoint": "/api/status",
  "StatusSimpleHealth": true,
  "StatusOUVerify": false,
  "AgentPollMinutes": 60,
  "UnseenAgentForgetHours": 6,
  "StaleSeedFailMinutes": 60,
  "SeedAcceptableBytesDiff": 8192,
  "PseudoGTIDPattern": "",
  "PseudoGTIDPatternIsFixedSubstring": false,
  "PseudoGTIDMonotonicHint": "asc:",
  "DetectPseudoGTIDQuery": "",
  "BinlogEventsChunkSize": 10000,
  "SkipBinlogEventsContaining": [],
  "ReduceReplicationAnalysisCount": true,
  "FailureDetectionPeriodBlockMinutes": 1,
  "FailMasterPromotionOnLagMinutes": 0,
  "RecoveryPeriodBlockSeconds": 60,
  "RecoveryIgnoreHostnameFilters": [],
  "RecoverMasterClusterFilters": [
    "*"
  ],
  "RecoverIntermediateMasterClusterFilters": [
    "*"
  ],
  "OnFailureDetectionProcesses": [
    "echo 'Detected {failureType} on {failureCluster}. Affected replicas: {countSlaves}' >> /tmp/recovery.log"
  ],
  "PreGracefulTakeoverProcesses": [
    "echo 'Planned takeover about to take place on {failureCluster}. Master will switch to read_only' >> /tmp/recovery.log"
  ],
  "PreFailoverProcesses": [
    "echo 'Will recover from {failureType} on {failureCluster}' >> /tmp/recovery.log"
  ],
  "PostFailoverProcesses": [
    "echo '(for all types) Recovered from {failureType} on {failureCluster}. Failed: {failedHost}:{failedPort}; Successor: {successorHost}:{successorPort}' >> /tmp/recovery.log",
    "source /usr/local/orchestrator/script/orch_hook.sh {failureType} {failureClusterAlias} {failedHost} {successorHost} >> /tmp/orch_vip.log",
    "source /usr/local/orchestrator/script/dble.sh {failureType} {failureClusterAlias} {failedHost} {successorHost} >> /tmp/orch_dble.log"
 
  ],
  "PostUnsuccessfulFailoverProcesses": [],
  "PostMasterFailoverProcesses": [
    "echo 'Recovered from {failureType} on {failureCluster}. Failed: {failedHost}:{failedPort}; Promoted: {successorHost}:{successorPort}' >> /tmp/recovery.log"
  ],
  "PostIntermediateMasterFailoverProcesses": [
    "echo 'Recovered from {failureType} on {failureCluster}. Failed: {failedHost}:{failedPort}; Successor: {successorHost}:{successorPort}' >> /tmp/recovery.log"
  ],
  "PostGracefulTakeoverProcesses": [
    "echo 'Planned takeover complete' >> /tmp/recovery.log"
  ],
  "CoMasterRecoveryMustPromoteOtherCoMaster": true,
  "DetachLostSlavesAfterMasterFailover": true,
  "ApplyMySQLPromotionAfterMasterFailover": true,
  "PreventCrossDataCenterMasterFailover": false,
  "PreventCrossRegionMasterFailover": false,
  "MasterFailoverDetachReplicaMasterHost": false,
  "MasterFailoverLostInstancesDowntimeMinutes": 0,
  "PostponeReplicaRecoveryOnLagMinutes": 0,
  "OSCIgnoreHostnameFilters": [],
  "GraphiteAddr": "",
  "GraphitePath": "",
  "GraphiteConvertHostnameDotsToUnderscores": true,
 
  "RaftEnabled": true,
  "BackendDB": "mysql",
  "RaftBind": "1xx.1x.x.146",
  "RaftDataDir": "/home/data/orchestrator",
  "DefaultRaftPort": 10008,
  "RaftNodes": [
    "1xx.1x.x.146",
    "1xx.1x.x.147",
    "1xx.1x.x.148"
    ],
 
  "ConsulAddress": "",
  "ConsulAclToken": "",
  "ConsulKVStoreProvider": "consul"
}

启动服务

在每台orchestrator集群机器的orchestrator安装目录下，运行：

./orchestrator --debug --config=/etc/orchestrator.conf.json http
systemctl托管服务

解压orchestrator压缩包时，在

/usr/local/etc/systemd/system目录下会有托管文件：orchestrator.service。将其移动到/usr/lib/systemd/system/orchestrator.service。内容如下：

启动：systemctl start orchestrator
登录web界面

登录URL：1xx.1x.3.146:3000 或1xx.1x.3.147:3000 或 1xx.1x.3.148:3000