Hi hdfs-dev, With ten +1's (eight binding and two non-binding), the vote passed. Once the latest merge patch has passed Jenkins, I will merge the HDFS-5535 branch to trunk. Thanks everyone!
Tsz-Wo On Tuesday, February 25, 2014 1:41 PM, Tsz Wo Sze <szets...@yahoo.com> wrote: Hi hdfs-dev, > > >We propose merging the HDFS-5535 branch to trunk. > > >HDFS Rolling Upgrade is a feature to allow upgrading individual HDFS daemons. >In Hadoop v2, HDFS supports highly-available (HA) namenode services and wire >compatibility. These two capabilities make it feasible to upgrade HDFS without >incurring HDFS downtime. We make such improvement in the HDFS-5535 branch. > > >The HDFS-5535 branch is ready to be merged to trunk. As this being written, >there are 48 subtasks in HDFS-5535; 44 subtasks are already completed. The >core developments including feature development, unit tests and user doc, are >already done. The merge patch posted a few ago already passed Jenkins. I >will post a updated patch to trigger Jenkins again for the latest code base. > > >The remaining JIRAs are: > > >HDFS-3225: Revist upgrade snapshots, roll back, finalize to enable rolling >upgrades (assigned to Sanjay) >HDFS-6000: Avoid saving namespace when starting rolling upgrade (assigned to >Jing) >HDFS-6013: add rollingUpgrade information to latest UI (assigned to Vinay) >HDFS-6016: Update datanode replacement policy to make writes more robust >(assigned to Kihwal) > > >HDFS-6000 will be committed soon. All other issues are further improvements >which can be done after merge. > > >The other remaining works are: >- Revise the design doc >- Post a test plan (Haohui is working on it.) >- Execute the manual tests (Haohui and Fengdong will work on it.) > > >The work was a collective effort of Nathan Roberts, Sanjay Radia, Suresh >Srinivas, Kihwal Lee, Jing Zhao, Arpit Agarwal, Brandon Li, Haohui Mai, >Vinayakumar B, Fengdong Yu, Chris Nauroth and Tsz-Wo Nicholas Sze, who have >proposed the design, worked on the code, reviewed patches, tested the features >and authored documentation. We thank everyone that who has gave us valuable >comments and feedback on the feature. > > >The vote runs for 7 days. Here is my +1 on the merge. > > >Thanks. >Tsz-Wo > >
