Backups via WebHDFS: Support for Kerberos authentication
Details
| Detail name | Value |
|---|---|
| Changelog Number | 2105 |
| Type | New Feature |
| Status | Resolved |
| Fix Versions | EXASOL 6.0.0 |
| Resolution Date | 2017-03-16 |
Backups via WebHDFS: Support for Kerberos authentication
We will support Kerberos authentication for creating database backups via WebHDFS.
Therefore, a user will have to provide a delegation token to the options of the appropriate remote archive volume. This delegation token can be retrieved as follows:
kinit {principal}
curl -s --negotiate -u : http://myserver:50070/webhdfs/v1/?op=GETDELEGATIONTOKEN | grep -Po 'urlString":"\K[^"]*'
To provide this token to the remote archive volume, add the following to its field "Options":
delegation_token={token}
Please remember that the token validity will cease after a certain amount of time, depending from the Hadoop system configuration. Thus, it must be refreshed regularly.
