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HDFS, mail # dev - HDFS HA Next Steps - Developers Meeting


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HDFS HA Next Steps - Developers Meeting
sanjay Radia 2012-03-12, 06:19
We will be holding a meeting for HDFS HA developers this coming Tuesday 13th at 2pm.
The agenda is to go over the next steps for Namenode HA development.

Location: Hortonworks Inc, 455 W Maude Avenue, Suite 200, Sunnyvale CA 94085
Date: Tuesday March 13th
Time: 2-4pm.

We will have room for approx 15 folks - please send me ([EMAIL PROTECTED])  an email if you are interested in attending so that I can reserve a spot  and confirm.  Minutes will be posted on HDFS-1623.
sanjay

On Feb 21, 2012, at 9:16 PM, sanjay Radia wrote:

> Hello,
> We would like organize a meeting to discuss the 2nd phase of HDFS HA development.
>
> Right now the HA branch supports HOT-Failover, except that it is manual failover. We are now moving into a phase to implement automatic failover.
> Please see HDFS-1623 for more details.
>
> Significant enhancements were completed to make HOT Failover work:
>   - Configuration changes for HA
>   - Notion of active and standby states were added to the Namenode
>   - Client-side redirection
>   - Standby processing editlogs form Active
>   - Dual block reports to Active and Standby.
>
> Engineers at  both Cloudera and Hortonworks have tested manual failover.
> Please see HDFS-1623 for more details.
>
> We would like to host a developers meeting on the week of March 5th (tentative) to plan the next phase of development.
> Details of venue/conference bridge information to follow.
>
> Tentative Agenda:
>   - Next development steps  in automatic failover
>   - Other enhancements for HA
>
>
> Sanjay