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This article introduces the relevant knowledge of "the method of solr synchronizing mysql". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

First, create a database and table

Here you create a table with test data, and notice that there is a field to record the update time update_date

Second, modify the configuration file

We first introduce full synchronization, then incremental synchronization.

My solr version is 7.5, and new_core is the core I created. Open solrconfig.xml and add the following configuration

Data-config.xml

Then create a data-config.xml under the current conf directory

DeltaQuery: incremental index query primary key ID

DeltaImportQuery: incremental index query imported data

DeletedPkQuery: this operation value queries the ID (enable_flag=0 data) of the pseudo-deleted data in the database.

After configuration, open the database to modify the value and update_date of one of the records

Update ho_front_message set content='xxxx', update_date=now () where id='xxx'

Import incremental data and check delta-import

Query again to see if the incremental data is correct.

To delete data is to enable_flag=0 a piece of data and then operate the incremental import.

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