Cool Runlin. I'm pretty happy you folks finally benefit from Hadoop 3 and HDFS Erasure Coding feature now. Guess you could have an Apache blog introducing this great work?
-kai ------------------------------------------------------------------ 发件人：Runlin zhang <[email protected]> 发送时间：2019年12月12日(星期四) 02:14 收件人：Weiwei Yang <[email protected]> 抄 送：Eric Badger <[email protected]>; Hui Fei <[email protected]>; yarn-dev <[email protected]>; Hdfs-dev <[email protected]>; mapreduce-dev <[email protected]>; submarine-dev <[email protected]> 主 题：Re: [Announcement] DiDi HDFS successfully upgraded from 2.7.2 to 3.2.0 Yes, we also plan to upgrade YARN, and we expect to complete the upgrade in Q3-Q4 of 2020 Weiwei Yang <[email protected]> 于2019年12月10日周二 上午10:24写道： > Awesome! You guys rock!! > Any plan to upgrade YARN to latest version too? > > -- > Weiwei > On Dec 9, 2019, 5:20 PM -0800, Hui Fei <[email protected]>, wrote: > > Hi Eric, > > It's Rolling Upgrade without downtime. We have a cluster with thousands of > nodes and 5 namespace, it takes 1 month to do the upgrade. Upgrading > Service includes JournalNode, NameNode, ZKFC and DataNode. > Related issues of rolling upgrade > are HDFS-13596，HDFS-14396，HDFS-14831，HDFS-14509. > Watching HDFS-13671 about performance. > > Thanks! > > Eric Badger <[email protected]> 于2019年12月9日周一 上午11:54写道： > > Hi Runlin, > > Awesome to hear that you've been able to upgrade! Do you mind sharing some > thoughts on your experience with the upgrade? Did you take a cluster > downtime to do the upgrade? How long did the upgrade take? Did you find any > incompatibilities or issues during or after the upgrade? Do you know if > your performance is better, worse, or similar? > > Feel free to answer as many or as few of these as you would like. > > Thanks! > > Eric > > On Sun, Dec 8, 2019 at 9:14 PM Runlin zhang <[email protected]> wrote: > > Hi Folks, > > This is Runlin Zhang from DiDi. I'm glad to announce that our HDFS > > has > > just been successfully upgraded from 2.7.2 to 3.2.0， Our cluster has > > nearly > > 10,000 nodes，Now the cluster services are stable and we are using new > features, such as EC, that bring huge benefits！ Here I want to thank my > colleagues for their efforts, Fei Hui, Hu Haiyang, Wang Hongbing, Zhu > Linhai, Wu Tong; And thanks to the community. > > It is also highly recommended that you upgrade the version to 3.2.1, > > If > > you have any problems in the upgrade, you can also communicate and > > discuss > > with me. > > > Thanks > Runlin Zhang > > >
