hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6783) Fix HDFS CacheReplicationMonitor rescan logic
Date Sun, 03 Aug 2014 01:50:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yi Liu updated HDFS-6783:
-------------------------

    Attachment: HDFS-6783.006.patch

Thanks [~cmccabe], I agree with the logic in the new patch. One small nit: initial value of
{{neededScanCount}} should be 0, right? We don’t need to trigger a {{needsRescan}} at initial
state, I update it in the new version.

> Fix HDFS CacheReplicationMonitor rescan logic
> ---------------------------------------------
>
>                 Key: HDFS-6783
>                 URL: https://issues.apache.org/jira/browse/HDFS-6783
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: caching
>    Affects Versions: 3.0.0
>            Reporter: Yi Liu
>            Assignee: Yi Liu
>         Attachments: HDFS-6783.001.patch, HDFS-6783.002.patch, HDFS-6783.003.patch, HDFS-6783.004.patch,
HDFS-6783.005.patch, HDFS-6783.006.patch
>
>
> In monitor thread, needsRescan is set to false before real scan starts, so 
> for {{waitForRescanIfNeeded}} will return for the first condition:
> {code}
> if (!needsRescan) {
>   return;
> }
> {code}



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message