[HDFS-11903] Ozone: Cleaning up local storage when closing MiniOzoneCluster

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: HDFS-7240
• Component/s: ozone
• Target Version/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Mingliang Liu
• Created: 30/May/17 22:01
• Updated: 26/Apr/18 21:50
• Resolved: 31/May/17 22:03

Description

Currently we don't delete the local storage when closing MiniOzoneCluster, which will cause creating volume with the same name to fail, even in a new JVM process. Let's delete the local storage files: /tmp/ozone/metadata.db and /tmp/ozone/user.db when closing.

Please note this is not a complete solution. As the OzoneMetadataManager currently is a singleton, we are not able to create two independent MiniOzoneCluster in a single JVM. Data maybe shared unexpectedly. Let's address that in another JIRA, if needed.