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dolphinScheduler 使用java dolphin conservation trust

编程语言2024-04-26 22:38:41

Table of Contents

任务总体存储

Shell节点

SQL节点

存储过程节点

SPARK节点

MapReduce(MR)节点

Python节点

Flink节点

HTTP节点

子流程节点

依赖(DEPENDENT)节点

任务总体存储

在调度平台所创建的所有任务都保存在t_ds_process_definition 表中.

该数据库表结构如下表所示:

序号	字段	类型	注释
1	id	int	主键
2	name	varchar	流程定义名称
3	version	int	流程定义版本
4	release_state	tinyint	流程定义的发布状态：0 未上线 1已上线
5	project_id	int	项目id
6	user_id	int	流程定义所属用户id
7	process_definition_json	longtext	流程定义json串
8	description	text	流程定义描述
9	global_params	text	全局参数
10	flag	tinyint	流程是否可用：0 不可用，1 可用
11	locations	text	节点坐标信息
12	connects	text	节点连线信息
13	receivers	text	收件人
14	receivers_cc	text	抄送人
15	create_time	datetime	创建时间
16	timeout	int	超时时间
17	tenant_id	int	租户id
18	update_time	datetime	更新时间

其中process_definition_json 字段为核心字段, 定义了 DAG 图中的任务信息.该数据以JSON 的方式进行存储.

公共的数据结构如下表.

序号	字段	类型	注释
1	globalParams	Array	全局参数
2	tasks	Array	流程中的任务集合 [各个类型的结构请参考如下章节]
3	tenantId	int	租户id
4	timeout	int	超时时间

数据示例

`{ "globalParams":[ { "prop":"golbal_bizdate", "direct":"IN", "type":"VARCHAR", "value":"${system.biz.date}" } ], "tasks":[ Object{...} ], "tenantId":-1, "timeout":0 }`

Shell节点

Shell节点，在worker执行的时候，会生成一个临时Shell脚本，使用租户同名的linux用户执行这个脚本.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: SHELL
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		resourceList	引用资源文件
6		localParams	本地变量
7		rawScript	Shell脚本
8	description		描述
9	runFlag		运行标识
10	dependence		任务依赖	与params互斥
11	maxRetryTimes		最大重试次数
12	retryInterval		重试间隔
13	timeout		超时控制
14	taskInstancePriority		任务优先级
15	workerGroupId		Worker 分组
16	preTasks		前置任务

数据示例:

{ "type":"SHELL", "id":"tasks-17761", "name":"shell-task", "params":{ "resourceList":[ { "res":"spark-examples_2.11-2.4.4.jar" }, { "res":"hadoop-mapreduce-examples-2.7.4.jar" } ], "localParams":[ { "prop":"local_param", "direct":"IN", "type":"VARCHAR", "value":"global_bizdate" } ], "rawScript":"echo "this is a shell task : ${local_param}"" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"SHELL",
    "id":"tasks-17761",
    "name":"shell-task",
    "params":{
        "resourceList":[
            {
                "res":"spark-examples_2.11-2.4.4.jar"
            },
            {
                "res":"hadoop-mapreduce-examples-2.7.4.jar"
            }
        ],
        "localParams":[
            {
                "prop":"local_param",
                "direct":"IN",
                "type":"VARCHAR",
                "value":"global_bizdate"
            }
        ],
        "rawScript":"echo "this is a shell task : ${local_param}""
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
    ]
}

SQL节点

通过 SQL对指定的数据源进行数据查询、更新操作.

节点定义结构如下。

序号	参数名		描述	备注
1	type		类型	值: SQL
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		type	数据库类型
6		datasource	数据源
7		sql	Sql脚本
8		udfs	Udf 函数
9		sqlType	SQL 类型	0 查询 1 非查询
10		title	邮件标题
11		receivers	邮件接收人
12		receiversCc	邮件抄送人
13		showType	接收类型	TABLE 表格 ATTACHMENT附件
14		localParams	本地变量
15		connParams	连接参数
16		preStatements	前置 SQL
17		postStatements	后置 SQL
18	description		描述
19	runFlag		运行标识
20	dependence		任务依赖	与params互斥
21	maxRetryTimes		最大重试次数
22	retryInterval		重试间隔
23	timeout		超时控制
24	taskInstancePriority		任务优先级
25	workerGroupId		Worker 分组
26	preTasks		前置任务

数据示例:

{ "type":"SQL", "id":"tasks-17811", "name":"SQL节点", "params":{ "type":"MYSQL", "datasource":2, "sql":"show databases;", "udfs":"", "sqlType":"0", "title":"SQL节点", "receivers":"zhangboyi_mx@163.com", "receiversCc":"", "showType":"TABLE,ATTACHMENT", "localParams":[ ], "connParams":"", "preStatements":[ "select user();" ], "postStatements":[ "select database();" ] }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"SQL",
    "id":"tasks-17811",
    "name":"SQL节点",
    "params":{
        "type":"MYSQL",
        "datasource":2,
        "sql":"show databases;",
        "udfs":"",
        "sqlType":"0",
        "title":"SQL节点",
        "receivers":"zhangboyi_mx@163.com",
        "receiversCc":"",
        "showType":"TABLE,ATTACHMENT",
        "localParams":[
 
        ],
        "connParams":"",
        "preStatements":[
            "select user();"
        ],
        "postStatements":[
            "select database();"
        ]
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

存储过程节点

根据选择的数据源，执行存储过程.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: PROCEDURE
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		type	数据库类型
6		datasource	数据源 ID
7		method	方法名
8		localParams	存储过程参数
9	description		描述
10	runFlag		运行标识
11	dependence		任务依赖	与params互斥
12	maxRetryTimes		最大重试次数
13	retryInterval		重试间隔
14	timeout		超时控制
15	taskInstancePriority		任务优先级
16	workerGroupId		Worker 分组
17	preTasks		前置任务

数据示例:

"type":"PROCEDURE", "id":"tasks-33589", "name":"存储过程节点", "params":{ "type":"MYSQL", "datasource":2, "method":"add", "localParams":[ { "prop":"in_paramer", "direct":"IN", "type":"VARCHAR", "value":"" }, { "prop":"out_paramer", "direct":"OUT", "type":"VARCHAR", "value":"" } ] }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

SPARK节点

通过SPARK节点，可以直接直接执行SPARK程序，对于spark节点，worker会使用spark-submit方式提交任务.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: SPARK
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		mainClass	运行主类
6		mainJar	程序 jar 包
7		deployMode	部署模式
8		resourceList	引用资源文件
9		localParams	本地变量
10		driverCores	driver核数
11		driverMemory	driver 内存数
12		numExecutors	executor数量
13		executorMemory	executor内存
14		executorCores	executor核数
15		mainArgs	主参数
16		others	其他参数
17		programType	程序类型
18		sparkVersion	Spark 版本
19	description		描述
20	runFlag		运行标识
21	dependence		任务依赖	与params互斥
22	maxRetryTimes		最大重试次数
23	retryInterval		重试间隔
24	timeout		超时控制
25	taskInstancePriority		任务优先级
26	workerGroupId		Worker 分组
27	preTasks		前置任务

数据示例:

{ "type":"SPARK", "id":"tasks-46459", "name":"SPARK节点", "params":{ "mainClass":"org.apache.spark.examples.SparkPi", "mainJar":{ "res":"spark-examples_2.11-2.4.4.jar" }, "deployMode":"cluster", "resourceList":[ { "res":"spark-examples_2.11-2.4.4.jar" } ], "localParams":[ ], "driverCores":1, "driverMemory":"512M", "numExecutors":2, "executorMemory":"2G", "executorCores":2, "mainArgs":"10", "others":"", "programType":"SCALA", "sparkVersion":"SPARK2" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"SPARK",
    "id":"tasks-46459",
    "name":"SPARK节点",
    "params":{
        "mainClass":"org.apache.spark.examples.SparkPi",
        "mainJar":{
            "res":"spark-examples_2.11-2.4.4.jar"
        },
        "deployMode":"cluster",
        "resourceList":[
            {
                "res":"spark-examples_2.11-2.4.4.jar"
            }
        ],
        "localParams":[
 
        ],
        "driverCores":1,
        "driverMemory":"512M",
        "numExecutors":2,
        "executorMemory":"2G",
        "executorCores":2,
        "mainArgs":"10",
        "others":"",
        "programType":"SCALA",
        "sparkVersion":"SPARK2"
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

MapReduce(MR)节点

使用MR节点，可以直接执行MR程序。对于mr节点，worker会使用hadoop jar方式提交任务.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: MR
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		mainClass	运行主类
6		mainJar	程序 jar 包
7		resourceList	引用资源文件
8		mainArgs	主参数
9		others	其他参数
10		programType	程序类型
11	description		描述
12	runFlag		运行标识
13	dependence		任务依赖	与params互斥
14	maxRetryTimes		最大重试次数
15	retryInterval		重试间隔
16	timeout		超时控制
17	taskInstancePriority		任务优先级
18	workerGroupId		Worker 分组
19	preTasks		前置任务

数据示例:

{ "type":"MR", "id":"tasks-70322", "name":"MapReduce(MR)节点", "params":{ "mainClass":"wordcount", "mainJar":{ "res":"hadoop-mapreduce-examples-2.7.4.jar" }, "resourceList":[ { "res":"hadoop-mapreduce-examples-2.7.4.jar" } ], "localParams":[ ], "mainArgs":"/wordcount/input /wordcount/output/result", "others":"", "programType":"JAVA" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

Python节点

使用Python节点，可以直接执行python脚本，对于python节点，worker会使用python **方式提交任务.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: PYTHON
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		resourceList	引用资源文件
6		localParams	本地变量
7		rawScript	Python脚本
8	description		描述
9	runFlag		运行标识
10	dependence		任务依赖	与params互斥
11	maxRetryTimes		最大重试次数
12	retryInterval		重试间隔
13	timeout		超时控制
14	taskInstancePriority		任务优先级
15	workerGroupId		Worker 分组
16	preTasks		前置任务

数据示例:

`{ "type":"PYTHON", "id":"tasks-23887", "name":" Python节点", "params":{ "resourceList":[ { "res":"hadoop-mapreduce-examples-2.7.4.jar" }, { "res":"spark-examples_2.11-2.4.4.jar" } ], "localParams":[ ], "rawScript":"print("this is python task ..")" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }`

{
    "type":"PYTHON",
    "id":"tasks-23887",
    "name":" Python节点",
    "params":{
        "resourceList":[
            {
                "res":"hadoop-mapreduce-examples-2.7.4.jar"
            },
            {
                "res":"spark-examples_2.11-2.4.4.jar"
            }
        ],
        "localParams":[
 
        ],
        "rawScript":"print("this is python task ..")"
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

Flink节点

根据配置调用 Flink 请求.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: FLINK
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		mainClass	运行主类
6		mainJar	程序 jar 包
7		deployMode	部署模式
8		resourceList	引用资源文件
9		localParams	本地变量
10		slot	Slot数量
11		taskManager	taskManager数量
12		taskManagerMemory	taskManager内存
13		jobManagerMemory	jobManager内存
14		executorCores	executor核数
15		mainArgs	主参数
16		others	其他参数
17		programType	程序类型
18		sparkVersion	Spark 版本
19	description		描述
20	runFlag		运行标识
21	dependence		任务依赖	与params互斥
22	maxRetryTimes		最大重试次数
23	retryInterval		重试间隔
24	timeout		超时控制
25	taskInstancePriority		任务优先级
26	workerGroupId		Worker 分组
27	preTasks		前置任务

数据示例:

{ "type":"FLINK", "id":"tasks-84250", "name":"Flink节点", "params":{ "mainClass":"org.apache.spark.examples.SparkPi", "mainJar":{ "res":"spark-examples_2.11-2.4.4.jar" }, "deployMode":"cluster", "resourceList":[ ], "localParams":[ ], "slot":1, "taskManager":"2", "jobManagerMemory":"1G", "taskManagerMemory":"2G", "executorCores":2, "mainArgs":"10", "others":"", "programType":"SCALA" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"FLINK",
    "id":"tasks-84250",
    "name":"Flink节点",
    "params":{
        "mainClass":"org.apache.spark.examples.SparkPi",
        "mainJar":{
            "res":"spark-examples_2.11-2.4.4.jar"
        },
        "deployMode":"cluster",
        "resourceList":[
 
        ],
        "localParams":[
 
        ],
        "slot":1,
        "taskManager":"2",
        "jobManagerMemory":"1G",
        "taskManagerMemory":"2G",
        "executorCores":2,
        "mainArgs":"10",
        "others":"",
        "programType":"SCALA"
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

HTTP节点

根据配置调用 HTTP 请求.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: HTTP
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		localParams	本地变量
6		httpParams	请求参数
7		url	url 地址
8		httpMethod	请求方式
9		httpCheckCondition	检查条件
10		condition	检查内容
11	description		描述
12	runFlag		运行标识
13	dependence		任务依赖	与params互斥
14	maxRetryTimes		最大重试次数
15	retryInterval		重试间隔
16	timeout		超时控制
17	taskInstancePriority		任务优先级
18	workerGroupId		Worker 分组
19	preTasks		前置任务

数据示例:

{ "type":"HTTP", "id":"tasks-31113", "name":"http节点", "params":{ "localParams":[ ], "httpParams":[ { "prop":"id", "httpParametersType":"PARAMETER", "value":"GRESFWW" } ], "url":"http://www.ysstech.com/", "httpMethod":"GET", "httpCheckCondition":"STATUS_CODE_DEFAULT", "condition":"" }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"HTTP",
    "id":"tasks-31113",
    "name":"http节点",
    "params":{
        "localParams":[
 
        ],
        "httpParams":[
            {
                "prop":"id",
                "httpParametersType":"PARAMETER",
                "value":"GRESFWW"
            }
        ],
        "url":"http://www.ysstech.com/",
        "httpMethod":"GET",
        "httpCheckCondition":"STATUS_CODE_DEFAULT",
        "condition":""
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

子流程节点

子流程节点，就是把外部的某个工作流定义当做一个任务节点去执行.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: SUB_PROCESS
2	id		任务编码
3	name		名称
4	params		自定义参数	Json 格式
5		processDefinitionId	流程定义 ID
6	description		描述
7	runFlag		运行标识
8	dependence		任务依赖	与params互斥
9	maxRetryTimes		最大重试次数
10	retryInterval		重试间隔
11	timeout		超时控制
12	taskInstancePriority		任务优先级
13	workerGroupId		Worker 分组
14	preTasks		前置任务
15
16

数据示例:

`{ "type":"SUB_PROCESS", "id":"tasks-22568", "name":"子流程节点-task", "params":{ "processDefinitionId":2 }, "description":"", "runFlag":"NORMAL", "dependence":{ }, "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }`

{
    "type":"SUB_PROCESS",
    "id":"tasks-22568",
    "name":"子流程节点-task",
    "params":{
        "processDefinitionId":2
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
 
    },
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

依赖(DEPENDENT)节点

依赖节点，就是依赖检查节点。比如A流程依赖昨天的B流程执行成功，依赖节点会去检查B流程在昨天是否有执行成功的实例.

节点定义结构如下:

序号	参数名		描述	备注
1	type		类型	值: DEPENDENT
2	id		任务编码
3	name		名称
4	params		自定义参数
5	description		描述
6	runFlag		运行标识
7	dependence		任务依赖	与params互斥
8		relation	关系
9		dependTaskList	依赖任务清单
10	maxRetryTimes		最大重试次数
11	retryInterval		重试间隔
12	timeout		超时控制
13	taskInstancePriority		任务优先级
14	workerGroupId		Worker 分组
15	preTasks		前置任务

数据示例:

{ "type":"DEPENDENT", "id":"tasks-3383", "name":" 依赖(DEPENDENT)节点", "params":{ }, "description":"", "runFlag":"NORMAL", "dependence":{ "relation":"AND", "dependTaskList":[ { "relation":"AND", "dependItemList":[ { "projectId":2, "definitionId":3, "definitionList":[ { "value":3, "label":"子流程节点" }, { "value":2, "label":"shell-task" } ], "depTasks":"ALL", "cycle":"day", "dateValue":"today" } ] } ] }, "maxRetryTimes":"0", "retryInterval":"1", "timeout":{ "strategy":"", "interval":null, "enable":false }, "taskInstancePriority":"MEDIUM", "workerGroupId":-1, "preTasks":[ ] }

{
    "type":"DEPENDENT",
    "id":"tasks-3383",
    "name":" 依赖(DEPENDENT)节点",
    "params":{
 
    },
    "description":"",
    "runFlag":"NORMAL",
    "dependence":{
        "relation":"AND",
        "dependTaskList":[
            {
                "relation":"AND",
                "dependItemList":[
                    {
                        "projectId":2,
                        "definitionId":3,
                        "definitionList":[
                            {
                                "value":3,
                                "label":"子流程节点"
                            },
                            {
                                "value":2,
                                "label":"shell-task"
                            }
                        ],
                        "depTasks":"ALL",
                        "cycle":"day",
                        "dateValue":"today"
                    }
                ]
            }
        ]
    },
    "maxRetryTimes":"0",
    "retryInterval":"1",
    "timeout":{
        "strategy":"",
        "interval":null,
        "enable":false
    },
    "taskInstancePriority":"MEDIUM",
    "workerGroupId":-1,
    "preTasks":[
 
    ]
}

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任务总体存储

Shell节点

SQL节点

存储过程节点

SPARK节点

MapReduce(MR)节点

Python节点

Flink节点

HTTP节点

子流程节点

依赖(DEPENDENT)节点

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