hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5869) When rolling upgrade is in progress, NN should only create checkpoint right before the upgrade marker
Date Wed, 05 Feb 2014 06:18:10 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HDFS-5869:
-----------------------------------------

    Attachment: h5869_20140205.patch

h5869_20140205.patch: updates the test and removes checkRollingUpgrade in startCheckpoint.

On a second thought, we should only disallow save namespace but allow checkpoint.  Otherwise,
the edit log may become huge.

> When rolling upgrade is in progress, NN should only create checkpoint right before the
upgrade marker
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5869
>                 URL: https://issues.apache.org/jira/browse/HDFS-5869
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h5869_20140204.patch, h5869_20140204b.patch, h5869_20140205.patch
>
>
> - When starting rolling upgrade, NN should create a checkpoint before it writes the upgrade
marker edit log transaction.
> - When rolling upgrade is in progress, NN should reject saveNamespace rpc calls. Further,
if NN restarts, it should create a checkpoint only right before the upgrade marker.



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message