Harsh J created HDFS-5189:
-----------------------------
Summary: Rename the "CorruptBlocks" metric to "CorruptReplicas"
Key: HDFS-5189
URL: https://issues.apache.org/jira/browse/HDFS-5189
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 2.1.0-beta
Reporter: Harsh J
Assignee: Harsh J
Priority: Minor
The NameNode increments a "CorruptBlocks" metric even if only one of the block's
replicas is reported corrupt (genuine checksum fail, or even if a
replica has a bad genstamp). In cases where this is incremented, fsck
still reports a healthy state.
This is confusing to users and causes false alarm as they feel this is to be
monitored (instead of MissingBlocks). The metric is truly trying to report only
corrupt replicas, not whole blocks, and ought to be renamed.
FWIW, the "dfsadmin -report" reports a proper string of "Blocks with corrupt
replicas:" when printing this count.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
