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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4680) Show time drift between nodes when using nodetool ring
Date Mon, 07 Jan 2013 18:00:17 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13546099#comment-13546099
] 

Jonathan Ellis commented on CASSANDRA-4680:
-------------------------------------------

Can we do this w/ the existing gossip information, or do we need to add a "here's what time
it is locally" state?
                
> Show time drift between nodes when using nodetool ring
> ------------------------------------------------------
>
>                 Key: CASSANDRA-4680
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4680
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core, Tools
>            Reporter: Patrick McFadin
>            Priority: Minor
>             Fix For: 1.2.1
>
>
> From the docs:
> Server clock synchronization is more important in 1.2; replicas
> will use a coordinator-provided timestamp to determine when a
> request has timed out and is thus not worth proceeding with.
> Using a service like NTP is strongly recommended.
> Since this is now more important than ever, my proposed enhancement would be to the nodetool
command. When displaying the "ring" information, add the time drift as relative to the current
host.
> This would be a valuable tool to aid in diagnostics.

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