ETL异构数据源Datax_使用数据分片提升同步速度_05
文章目录
- 构建json，添加数据分片
- Mysql数据清除
- 数据分片前后对比
1. 构建json，添加数据分片
{"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 : 0channel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
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.
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