[jira] [Commented] (HBASE-3909) Add dynamic config

["stack (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-3909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13220383#comment-13220383 ] 

stack commented on HBASE-3909:
------------------------------

@Jimmy

bq. we don't have to poll fs to find changes. We can just put the lastmodifieddate of the file in ZK. Once the last modified date is changed, we can load the file again.

Why have the fs involved at all.  What would be the advantage?  Why not just put the changed configs. up in zk?  Because we could lose them (because we do not keep permanent data up in zk)?  That'd be ok I think.  If you don't move the configs to hbase-site, then its your own fault if they are lost when zk data is cleared.


                
> Add dynamic config
> ------------------
>
>                 Key: HBASE-3909
>                 URL: https://issues.apache.org/jira/browse/HBASE-3909
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.96.0
>
>
> I'm sure this issue exists already, at least as part of the discussion around making online schema edits possible, but no hard this having its own issue.  Ted started a conversation on this topic up on dev and Todd suggested we lookd at how Hadoop did it over in HADOOP-7001

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