+1 for merging. -----Original Message----- From: Brandon Li [mailto:bran...@hortonworks.com] Sent: 26 February 2014 05:42 To: hdfs-dev@hadoop.apache.org Subject: Re: [VOTE] Merge HDFS-5535 Rolling Upgrade Improvement
+1 for merging it to trunk. On Tue, Feb 25, 2014 at 3:23 PM, Azuryy Yu <azury...@gmail.com> wrote: > +1 for merging. > On Feb 26, 2014 5:42 AM, "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.
