ETL异构数据源Datax_使用数据分片提升同步速度_05

悠悠 2022-10-09 03:04 251阅读 0赞

### 文章目录 ###

*   *   *   *   *   *  1. 构建json，添加数据分片
                     *  2. Mysql数据清除
                     *  3. 数据分片前后对比

###### 1. 构建json，添加数据分片 ######

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70]

{ 
        "job": { 
            "setting": { 
                "speed": { 
                    "channel": 3
                },
                "errorLimit": { 
                    "record": 0,
                    "percentage": 0.02
                }
            },
            "content": [
                { 
                    "reader": { 
                        "name": "oraclereader",
                        "parameter": { 
                            "column": [
                                "IDNO",
                                "COL1",
                                "COL2",
                                "COL3",
                                "DT",
                                "COL5",
                                "COL6",
                                "COL7",
                                "COL8",
                                "COL9",
                                "COL10"
                            ],
                            splitPk:"IDNO",
                            "connection": [
                                { 
                                    "jdbcUrl": [
                                        "jdbc:oracle:thin:@192.xxx.xxx.xxx:1521:orcl"
                                    ],
                                    "table": [
                                        "TEST.OTBS1"
                                    ]
                                }
                            ],
                            "username": "username",
                            "password": "password"
                        }
                    },
                    "writer": { 
                        "name": "mysqlwriter",
                        "parameter": { 
                            "column": [
                                "IDNO",
                                "COL1",
                                "COL2",
                                "COL3",
                                "DT",
                                "COL5",
                                "COL6",
                                "COL7",
                                "COL8",
                                "COL9",
                                "COL10"
                            ],
                            "connection": [
                                { 
                                    "jdbcUrl": "jdbc:mysql://127.0.0.1:3306/datax?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT&nullCatalogMeansCurrent=true",
                                    "table": [
                                        "otbs1"
                                    ]
                                }
                            ],
                            "username": "root",
                            "password": "123456"
                        }
                    }
                }
            ]
        }
    }

###### 2. Mysql数据清除 ######

清除mysql otbs1表数据

truncate table otbs1;

###### 3. 数据分片前后对比 ######

数据分片前

2021-06-23 12:28:12.390 [job-0] INFO  StandAloneJobContainerCommunicator - Total 1048576 records, 69143488 bytes | Speed 1.65MB/s, 26214 records/s | Error 0 records, 0 bytes |  All Task WaitWriterTime 26.038s |  All Task WaitReaderTime 8.483s | Percentage 100.00%
    2021-06-23 12:28:12.402 [job-0] INFO  JobContainer - 
    任务启动时刻                    : 2021-06-23 12:27:31
    任务结束时刻                    : 2021-06-23 12:28:12
    任务总计耗时                    :                 41s
    任务平均流量                    :            1.65MB/s
    记录写入速度                    :          26214rec/s
    读出记录总数                    :             1048576
    读写失败总数                    :                   0
    
    
    channel并发3个未生效

数据分片后

2021-06-23 12:59:01.629 [job-0] INFO  JobContainer - 
    任务启动时刻                    : 2021-06-23 12:58:29
    任务结束时刻                    : 2021-06-23 12:59:01
    任务总计耗时                    :                 31s
    任务平均流量                    :            2.20MB/s
    记录写入速度                    :          34952rec/s
    读出记录总数                    :             1048576
    读写失败总数                    :                   0

速度相比数据分片前提升了10s

同步日志，相比数据分片前做了数据分片处理，并发3个channel处理16个任务。  
channel并发3个未生效  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 1]

2021-06-23 12:58:31.020 [job-0] INFO  JobContainer - jobContainer starts to do prepare ...
    2021-06-23 12:58:31.020 [job-0] INFO  JobContainer - DataX Reader.Job [oraclereader] do prepare work .
    2021-06-23 12:58:31.020 [job-0] INFO  JobContainer - DataX Writer.Job [mysqlwriter] do prepare work .
    2021-06-23 12:58:31.021 [job-0] INFO  JobContainer - jobContainer starts to do split ...
    2021-06-23 12:58:31.021 [job-0] INFO  JobContainer - Job set Channel-Number to 3 channels.
    2021-06-23 12:58:31.113 [job-0] INFO  SingleTableSplitUtil - split pk [sql=SELECT * FROM ( SELECT IDNO FROM DBTEST.OTBS1 SAMPLE (0.1)  WHERE (IDNO IS NOT NULL)  ORDER BY DBMS_RANDOM.VALUE) WHERE ROWNUM <= 15 ORDER by IDNO ASC] is running... 
    2021-06-23 12:58:31.389 [job-0] INFO  SingleTableSplitUtil - After split(), allQuerySql=[
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (42075 <= IDNO AND IDNO < 77408) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (77408 <= IDNO AND IDNO < 187833) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (187833 <= IDNO AND IDNO < 263631) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (263631 <= IDNO AND IDNO < 349253) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (349253 <= IDNO AND IDNO < 364994) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (364994 <= IDNO AND IDNO < 434398) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (434398 <= IDNO AND IDNO < 437250) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (437250 <= IDNO AND IDNO < 516705) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (516705 <= IDNO AND IDNO < 555961) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (555961 <= IDNO AND IDNO < 578695) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (578695 <= IDNO AND IDNO < 638120) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (638120 <= IDNO AND IDNO < 655685) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (655685 <= IDNO AND IDNO < 859873) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  (859873 <= IDNO AND IDNO <= 962533) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  ((IDNO < 42075) OR (962533 < IDNO)) 
    select IDNO,COL1,COL2,COL3,DT,COL5,COL6,COL7,COL8,COL9,COL10 from TEST.OTBS1  where  IDNO IS NULL
    ].
    2021-06-23 12:58:31.390 [job-0] INFO  JobContainer - DataX Reader.Job [oraclereader] splits to [16] tasks.
    2021-06-23 12:58:31.394 [job-0] INFO  JobContainer - DataX Writer.Job [mysqlwriter] splits to [16] tasks.
    2021-06-23 12:58:31.431 [job-0] INFO  JobContainer - jobContainer starts to do schedule ...
    2021-06-23 12:58:31.460 [job-0] INFO  JobContainer - Scheduler starts [1] taskGroups.
    2021-06-23 12:58:31.463 [job-0] INFO  JobContainer - Running by standalone Mode.
    2021-06-23 12:58:31.487 [taskGroup-0] INFO  TaskGroupContainer - taskGroupId=[0] start [3] channels for [16] tasks.
    2021-06-23 12:58:31.508 [taskGroup-0] INFO  Channel - Channel set byte_speed_limit to -1, No bps activated.
    2021-06-23 12:58:31.508 [taskGroup-0] INFO  Channel - Channel set record_speed_limit to -1, No tps activated.

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70]: /images/20221005/15a25412548a4a30bdcfdf541a2ee7c0.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 1]: /images/20221005/3238b093e8ed4c17b81e6fea704e8652.png