Can we get an updated design doc posted to the JIRA? I'm not -1 or anything, but I asked for this on the JIRA just before the merge vote started, and would like to see it posted soon.
On Mon, Mar 3, 2014 at 9:59 AM, Arpit Agarwal <aagar...@hortonworks.com>wrote: > +1 for merging the feature to trunk. > > > On Tue, Feb 25, 2014 at 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 > > -- > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity to > which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You. >
