how flink stream access dynamic mapping data to avoid io operation

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP


how flink stream access dynamic mapping data to avoid io operation



I have to process a streaming log, such as


{"id":1, "name":"alice"}



each one log need to get the family address by accessing a mapping db. however, the data in db is changing.



So can i read the db in period to avoid io operation by each one log.









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