[HDFS-1848] Datanodes should shutdown when a critical volume fails

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: datanode
• Assignee: Unassigned
• Reporter: Eli Collins
• Created: 20/Apr/11 00:01
• Updated: 10/Mar/15 01:36

Description

A DN should shutdown when a critical volume (eg the volume that hosts the OS, logs, pid, tmp dir etc.) fails. The admin should be able to specify which volumes are critical, eg they might specify the volume that lives on the boot disk. A failure in one of these volumes would not be subject to the threshold (HDFS-1161) or result in host decommissioning (HDFS-1847) as the decommissioning process would likely fail.

Issue Links

• is part of: HDFS-2137 Datanode Disk Fail Inplace
• is related to: HDFS-1158 HDFS-457 increases the chances of losing blocks
• is related to: HDFS-1847 Datanodes should decomission themselves on volume failure
• is related to: YARN-2980 Move health check script related functionality to hadoop-common
• is related to: HDFS-1849 Respect failed.volumes.tolerated on startup