# Logstash error: Java::JavaLang::NoClassDefFoundError: javax/xml/bind/DatatypeConverter **URL:** \ **Category:** Logstash\ **Created:** [December 16, 2020, 10:24pm UTC](https://discuss.elastic.co/t/logstash-error-java-javax-xml-bind-datatypeconverter/258920 "2020-12-16T22:24:50Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![streible](https://avatars.discourse-cdn.com/v4/letter/s/13edae/32.png) [@streible](https://discuss.elastic.co/u/streible)\ **Post date:** [December 16, 2020, 10:24pm UTC](https://discuss.elastic.co/t/logstash-error-java-javax-xml-bind-datatypeconverter/258920/1 "2020-12-16T22:24:50Z")
Hi everyone, I'm hoping someone can lend a hand or give some guidance. I have recently installed Elasticsearch on Ubuntu 20.04 and have most everything up and running. I am working with SQL Server 2019 on a remote machine and can query the databases just fine using the mssql-tools, no problem. At the present, I have been challenged with logstash connecting to SQL Server and have gone as far as setting the JAVA\_HOME and PATH environment variables to no avail and have also copied the jar file sqljdbc32.jar to /usr/share/logstash/logstash-core/lib/jars. I am using Open JDK 8. Installation went fine and all other services work great, but this one continues to be problematic. The tutorial I have followed to get SQL data into Logstash is: > **[How To Transfer Data From MSSQL To Elasticsearch Using Logstash - Database...](https://dbtut.com/index.php/2019/06/02/how-to-transfer-data-from-mssql-to-elasticsearch-using-logstash/)** > > How To Transfer Data From MSSQL To Elasticsearch Using Logstash The configuration file for connection is very similar to the file that is illustrated in the tutorial: See this section of the tutorial: -\> Content of mssql\_dataset.conf I'm even using the Adventureworks2014 database. The only things that are different are the username, password, and IP address. As indicated before, mssql-tools can query that DB from Linux with no problem, so it's not a connectivity issue that is firewall or protocol related from an OS perspective. Any guidance would be appreciated. Thanks for any and all responses, Steve ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 13, 2021, 10:25pm UTC](https://discuss.elastic.co/t/logstash-error-java-javax-xml-bind-datatypeconverter/258920/2 "2021-01-13T22:25:05Z")
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