[HDFS-1537] Add a metrics for tracking the number of reported corrupt replicas

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: namenode
• Assignee: Hairong Kuang
• Reporter: Hairong Kuang
• Created: 14/Dec/10 21:59
• Updated: 10/Mar/15 01:46

Description

We have a cluster, some of its datanodes' disks are corrupt. But it tooks us a few days to be aware of the problem. Adding a metrics that keeps track of the number of reported corrupt replicas would allow us to have an alert when unusual number of corrupt replicas are reported.