[
https://issues.apache.org/jira/browse/HDFS-6450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15902152#comment-15902152
]
Inigo Goiri commented on HDFS-6450:
-----------------------------------
Thanks [~andrew.wang].
Most of the hedging management is done asynchronously but we still need to copy
data between threads, so I guess his concern is still valid.
The solution is much faster than a regular read but the thread management is
still there.
In any case, I think it's good practice to make it an opt-in feature.
We already rely on the config from HDFS-5776 to enable/disable it.
If we want to separate it from the regular hedged reads, we can add a separate
one for non-positional reads.
> Support non-positional hedged reads in HDFS
> -------------------------------------------
>
> Key: HDFS-6450
> URL: https://issues.apache.org/jira/browse/HDFS-6450
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.4.0
> Reporter: Colin P. McCabe
> Assignee: Liang Xie
> Attachments: HDFS-6450-like-pread.txt
>
>
> HDFS-5776 added support for hedged positional reads. We should also support
> hedged non-position reads (aka regular reads).
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
