odps传数据到mongoDB,很多数据没有更新
Open
- Dominant language
- Java
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- 17.4k
- Forks
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Description
场景:我需要从odps传全表数据(数据有1亿条左右)到mongoDB。如果数据在mongo中已存在,则更新数据;如果数据在mongo中不存在,则插入数据。
问题:使用datax传输后,日志没有报错,传输数据量也没问题。但发现MongoDB中还有很多数据没有更新到最新数据。 然后用少量数据去测试传输,结果没有问题。
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Research direction
Start by reproducing the full-table ODPS-to-MongoDB transfer described in the issue and compare existing MongoDB records with the completed transfer. Review the transfer logs and configuration to identify why some existing records remain outdated; done means all matching records are updated while missing records are inserted.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, mongodb
- Domain
- data-engineering, databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100