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From "Lokesh Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12521) Ozone: SCM should read all Container info into memory when booting up
Date Tue, 17 Oct 2017 07:04:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lokesh Jain updated HDFS-12521:
-------------------------------
    Attachment: HDFS-12521-HDFS-7240.002.patch

v2 patch fixes the compile and checkstyle issues. 
We are referring ContainerMapping instance as scmContainerManager in StorageContainerManager
class. I think it would be more appropriate to use scmContainerMapping or something better
as there already exists a class named ContainerManagerImpl.


> Ozone: SCM should read all Container info into memory when booting up
> ---------------------------------------------------------------------
>
>                 Key: HDFS-12521
>                 URL: https://issues.apache.org/jira/browse/HDFS-12521
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Anu Engineer
>            Assignee: Lokesh Jain
>              Labels: ozoneMerge
>         Attachments: HDFS-12521-HDFS-7240.001.patch, HDFS-12521-HDFS-7240.002.patch
>
>
> When SCM boots up it should read all containers into memory. This is a performance optimization
that allows delays on SCM side. This JIRA tracks that issue.



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