# Logstash filter jdbc\_streaming : JDBC:AdapterNotFound: Could not load jdbc/mssql adapter: adapter class not registered in ADAPTER\_MAP\>

**URL:** <https://discuss.elastic.co/t/logstash-filter-jdbc-streaming-jdbc-could-not-load-jdbc-mssql-adapter-adapter-class-not-registered-in-adapter-map/275546>\
**Category:** Logstash\
**Created:** [June 10, 2021, 9:27am UTC](https://discuss.elastic.co/t/logstash-filter-jdbc-streaming-jdbc-could-not-load-jdbc-mssql-adapter-adapter-class-not-registered-in-adapter-map/275546 "2021-06-10T09:27:44Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\
**Post date:** [June 14, 2021, 5:45pm UTC](https://discuss.elastic.co/t/logstash-filter-jdbc-streaming-jdbc-could-not-load-jdbc-mssql-adapter-adapter-class-not-registered-in-adapter-map/275546/5 "2021-06-14T17:45:34Z")

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> [@charles97](#):
>
> `mssql adapter: adapter class not registered in ADAPTER_MAP`

this looks like defiantly something to do with driver version mismatch.  
you have to do lot of different test as I don't know your configuration. I also spend almost two days testing out different combination and searching on internet and then configuration that I posted work.

this one was the key  
jdbc\_driver\_class =\> "com.microsoft.sqlserver.jdbc.SQLServerDriver"

Curretnly i have  
ls -la /usr/share/logstash/logstash-core/lib/jars/mssql-jdbc-7.4.1.jre8.jar  
-rw-r--r-- 1 logstash logstash 1209659 Sep 17 2019 /usr/share/logstash/logstash-core/lib/jars/mssql-jdbc-7.4.1.jre8.jar

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_[View the full topic](https://discuss.elastic.co/t/logstash-filter-jdbc-streaming-jdbc-could-not-load-jdbc-mssql-adapter-adapter-class-not-registered-in-adapter-map/275546)._