|
|
-
HDFS HA Status and Next Stepssanjay Radia 2012-02-22, 05:16
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 |