[
https://issues.apache.org/jira/browse/HDFS-11975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106737#comment-16106737
]
SammiChen commented on HDFS-11975:
----------------------------------
Hi [~luhuichun], I have several suggestions,
1. {{setErasureCodingPolicy}} in NameNodeRpcServer.java, suggest lower the log
level to debug or trace. Log level "info" will produce too much daily logs
2. new test added into testErasureCodingConf.xml, after set the default ec
policy, it's better to get the ec policy on the directory, to make sure it's
the expected ec policy
3. except testErasureCodingConf.xml, it's also recommended to add unit test in
{{TestErasureCodingPolicies}}
4. the default ec policy should register itself to
{{ErasureCodingPolicyManager}}, so that it will be enabled from
{{ErasureCodingPolicyManager}} point of view
> Provide a system-default EC policy
> ----------------------------------
>
> Key: HDFS-11975
> URL: https://issues.apache.org/jira/browse/HDFS-11975
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha3
> Reporter: Lei (Eddy) Xu
> Assignee: luhuichun
> Attachments: HDFS-11975-001.patch, HDFS-11975-002.patch,
> HDFS-11975-003.patch, HDFS-11975-004.patch, HDFS-11975-005.patch,
> HDFS-11975-006.patch, HDFS-11975-007.patch, HDFS-11975-008.patch
>
>
> From the usability point of view, it'd be nice to be able to specify a
> system-wide EC policy, i.e., in {{hdfs-site.xml}}. For most of users / admin
> / downstream projects, it is not necessary to know the tradeoffs of the EC
> policy, considering that it requires the knowledge of EC, the actual physical
> topology of the clusters, and many other factors (i.e., network, cluster size
> and etc).
>
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
