Rahul Shrivastava created HADOOP-14348:
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Summary: Need HDFS Health scripts for monitoring datanode
Key: HADOOP-14348
URL: https://issues.apache.org/jira/browse/HADOOP-14348
Project: Hadoop Common
Issue Type: Bug
Components: scripts
Reporter: Rahul Shrivastava
Sick machines cause issues, that HDFS will not automatically remediate that.
Upon a bad health, the DN should either stop sending block reports, simply
shut itself down, or indicate the problem in some other way.
We need a script to achieve this for DN.
MapReduceV1 had something, see
https://issues.apache.org/jira/browse/MAPREDUCE-211 . Hadoop-common moved into
hadoop-yarn-project for Hadoop v2, meaning we have a solution for YARN but are
lacking what we need in HDFS.
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