# tHDFSConnection

Connects to a given HDFS so that the other Hadoop components can reuse the connection it creates to communicate with this HDFS.

tHDFSConnection provides connection to the Hadoop distributed file system (HDFS) of interest at runtime.

For more technologies supported by Talend, see [Talend components](https://help.qlik.com/talend/r/en-US/7.3/components/hdfs).

### In this section

* [tHDFSConnection Standard properties](https://help.qlik.com/talend/en-US/components/7.3/hdfs/thdfsconnection-standard-properties)

**Related concepts**

[Checking the existence of a file in HDFS](https://help.qlik.com/talend/en-US/components/7.3/hdfs/thdfsexist-thdfsconnection-tmsgbox-thdfsconnection-tmsgbox-checking-existence-of-file-in-hdfs-standard-component-bigdata-in-this)

[Iterating on a HDFS directory](https://help.qlik.com/talend/en-US/components/7.3/hdfs/thdfslist-thdfsget-thdfsconnection-iterating-on-hdfs-directory-standard-component-bigdata-this)