Respect failed.volumes.tolerated on startup
-------------------------------------------
Key: HDFS-1849
URL: https://issues.apache.org/jira/browse/HDFS-1849
Project: Hadoop HDFS
Issue Type: Improvement
Components: data-node
Reporter: Eli Collins
Fix For: 0.23.0
The current failed.volumes.tolerated behavior is not user friendly, datanodes
can be configured to tolerate N volume failures and still offer service, but if
the cluster is restarted all the datanodes with failed volumes will not start
unless the failed volumes have been removed from the hdfs configuration files
on the respective hosts.
The failed.volumes.tolerated configuration option should be respected on
startup. The datanode should only refuse to startup if more than
failed.volumes.tolerated (HDFS-1161) have failed, or if a configured critical
volume (HDFS-1848) has failed (which is probably not an issue in practice since
dn startup probably fails eg if the root volume has gone readonly).
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
