[HDDS-2579] Ozone client should refresh pipeline info if reads from all Datanodes fail.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: Ozone Client
• Labels: pull-request-available
• Assignee: Aravindan Vijayan
• Reporter: Aravindan Vijayan
• Created: 20/Nov/19 04:41
• Updated: 09/Jan/20 18:04
• Resolved: 09/Jan/20 18:04

Description

Currently, if the client reads from all Datanodes in the pipleine fail, the read fails altogether. There may be a case when the container is moved to a new pipeline by the time client reads. In this case, the client should request for a refresh pipeline from OM, and read it again if the new pipeline returned from OM is different.

This behavior is consistent with that of HDFS.
cc msingh / shashikant / hanishakoneru

Issue Links

• links to: GitHub Pull Request #372
• links to: Github Pull Request #372