+ ceph-devel ----- Original Message ----- > From: "Methuku Karthik" <kmeth@xxxxxxxxxxxxxx> > To: tchaikov@xxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, kchai@xxxxxxxxxx > Cc: mynaramana@xxxxxxxxx > Sent: Tuesday, March 28, 2017 4:17:52 AM > Subject: [GSoc] : ceph-mgr: Smarter Reweight-by-Utilization > > Hi Everyone, > > My name is Karthik. I am a first year graduate student in Embedded Systems > at University of Pennsylvania. I am a avid c, c++ and python programmer.I > have 4 years of work experience as Software developer at Airbus. > > I have been working as research assistant in PRECISE lab at the > University of Pennsylvania to evaluate the performance of the Xen's RTDS > scheduler. > > Currently, I am doing a course on distributed systems. As a part of that > course ,I am building a small cloud platform using gRPC (Google's high > performance , open-source RPC framework) with the following features: > > (1)Webmail service (SMTP & POP3) to send, receive and forward mails > (2)A fault-tolerant backend server that employs key-Value store similar to > Google's Bigtable. > (3)The entire Bigtable is distributed across multiple backend servers. > (4)Frontend Http server to process requests from a browser, retrieve > appropriate data from the backend server and construct the http response > for the GUI. > (5)Storage service (Similar to Google Drive) with support for navigating > the directories, folder creation and uploading and downloading any file > type. > (6)This system will be fault tolerant with quorum based causal replication > done across multiple nodes and load balancing done with dynamic > distribution of users among different groups. > > I compiled and hosted a small cluster to observe how ceph works in storing > the data and how the distribution of the data is maintained while ensuring > fault tolerance.With the help of my friend Myna (cc.ed), I could come to > speed and performed few experiments to observe how data is shuffled after > bringing down one osd or by adding one osd. > > I am currently doing literature review on crush algorithm and understanding > the Ceph Architecture. > > It would be exciting to work on project "ceph-mgr: Smarter > Reweight-by-Utilization" > > Can you point me to any resources that guide to evaluate performace of > storage system ? i think the focus of "smarter reweight-by-utilization" would be to have a better balanced distribution of data in cluster. there are a lot of related discussion recently on our mailing list. > > What kind of factors should one consider to evaluate performace of a > storage system ? latency and throughput, availability, cost, flexibility, etc. i think there are lots of factors one should consider. but it depends on the use case. > I could think of response time for reading, writing and deleting a file or > how quickly a node is configured into a cluster or how quickly cluster > heals after a node dies. > > Please suggest me some existing simple beginner bug which would give me a > chance to explore the code. > i think it's important for you to find one at http://tracker.ceph.com, or better off, to identify a bug by using Ceph. > I'm very much interested in Ceph. I want to become a Ceph contributor in > the near future. > > Thank you very much for your help! > > Best, > Karthik > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
