[
https://issues.apache.org/jira/browse/HDFS-11505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15899317#comment-15899317
]
Takanobu Asanuma commented on HDFS-11505:
-----------------------------------------
Hi all, thanks for the discussion.
If we don't enable any EC policies by default, I feel a little anxious that
some admins might set low-redundant EC policies to high-level directories for
large clusters. IIUC, RS(6,3) or RS(10,4) is a recommended policy for large
clusters. How about adding the notes to the EC document?
> Do not enable any erasure coding policies by default
> ----------------------------------------------------
>
> Key: HDFS-11505
> URL: https://issues.apache.org/jira/browse/HDFS-11505
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha3
> Reporter: Andrew Wang
> Assignee: Manoj Govindassamy
> Labels: hdfs-ec-3.0-must-do
>
> As discussed on HDFS-11314, administrators need to choose the correct set of
> EC policies based on cluster size and desired fault-tolerance properties.
> This means we should not enable any EC policies by default, since any default
> value could be incorrect.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
