hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4988) Datanode must support all the volumes as individual storages
Date Fri, 12 Jul 2013 22:07:48 GMT
Suresh Srinivas created HDFS-4988:

             Summary: Datanode must support all the volumes as individual storages
                 Key: HDFS-4988
                 URL: https://issues.apache.org/jira/browse/HDFS-4988
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Suresh Srinivas

Currently all the volumes on datanode is reported as a single storage. This change proposes
reporting them as individual storage. This requires:
# A unique storage ID for each storage
#* This needs to be generated during formatting
# There should be an option to allow existing disks to be reported as single storage unit
for backward compatibility.
# A functionality is also needed to split the existing all volumes as single storage unit
to to individual storage units.
# Configuration must allow for each storage unit a storage type attribute.
# Block reports must be sent on a per storage basis. In some cases (such memory tier) block
reports may need to be sent more frequently. That means block reporting period must be on
a per storage type basis.

My proposal is for new clusters to configure volumes by default as separate storage unit.
Lets discuss.

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

View raw message