On Fri, Apr 26, 2013 at 7:32 AM, Charles Plessy <[email protected]> wrote: > Le Thu, Apr 25, 2013 at 05:26:34PM +0800, harryxiyou a écrit : >> >> 1, I have launched and maintained sub-project HLFS(Hadoop Distributed >> Log-Structured Based Log-Structured File System) of Cloudxy >> (http://code.google.com/p/cloudxy/ in Chinese >> http://code.google.com/p/cloudxy/wiki/WHAT_IS_CLOUDXY in English). >> >> I have also developed HLFS drivers for QEMU, Libvirt, Openstack and >> they all work well for HLFS. I am submitting HLFS driver patches to >> these communities. Maybe i will let HLFS support Cloudsim ;-). >> >> 2, Past open source contributions. >> Maintain Couldxy: http://code.google.com/p/cloudxy/ >> Patch for Libvirt: >> http://libvirt.org/git/?p=libvirt.git&a=search&h=HEAD&st=commit&s=Harry+Wei >> Patches for Linux Kernel: >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?id=refs%2Ftags%2Fv3.9-rc7&qt=author&q=Harry+Wei >> Some other trivial patches for Sheepdog or others are not listed here >> >> 3, My basic infos are here http://houjiaoshe.com/~harry/ > > Dear Harry,
Dear Charles, Sorry to reply so late :-/ > > thank you for your interest in bioinformatics and Debian. > > I have posted on the debian-cloud mailing list an explanation on the bottom-up > aspect of the project: the precise goal is to be defined together. This is > quite challenging (especially that the deadline is on May 3rd), but this way > we > can make project that wouldn't have been thought about by biologists or > computer scientists alone. > > https://lists.debian.org/debian-cloud/2013/04/msg00006.html > > You have a strong bacground in computer science, so please as many questions > as > you need to better see where your skills can solve commont problems we have in > bioinformatics. I have listed some of them in the email cited above. Please > use the debian-cloud or debian-med mailing lists so that you can have more > answers than just mine. > > I had a look at Cloudxy. Forgive me if I misunderstood, but is it a system > that would deduplicate common contents between images that are very similar ? No, it wouldn't. Following are some basic infos about HLBS. We have launched and developed a new block storage system, HLBS, which is Hadoop Distributed File System Based Log-Structured Block System. HLBS is a sub-project of Cloudxy (http://code.google.com/p/cloudxy/ in Chinese http://code.google.com/p/cloudxy/wiki/WHAT_IS_CLOUDXY in English). My brother(Kang hua, [email protected]) and me(http://houjiaoshe.com/~harry/) have been developing HLBS for more than two years. We know that HDFS can just write once and read many times and this feature is not suitable for back-end storage system so we base on HDFS then realize a new LBS(Log-Structure Block Storage System) with the concepts of LFS(Log-Structured File System). HLBS design ideas are here: http://code.google.com/p/cloudxy/wiki/HlfsDesign Now, HLBS has many features like following. 1, Support Snapshots -- http://code.google.com/p/cloudxy/wiki/HlfsSnapshotDesign 2, Support Cache -- http://code.google.com/p/cloudxy/wiki/HLFS_CACHE_DESIGN 3, Support Block Compression -- http://code.google.com/p/cloudxy/wiki/About_block_Compression 4, Support Segment clean(simple Garbage Collection) -- http://code.google.com/p/cloudxy/wiki/SEG_CLEAN_USAGE ... Actually, we also support for many famous software, like NBD(Network Block Device), QEMU, Libvirt, Openstack, iSCSI, etc. The patches are here http://cloudxy.googlecode.com/svn/branches/hlfs/features/multi-file/patches/ . I am now submitting these patches to communities. > One recurrent problem in bioinformatics is that each project is tied with the > version numbers of the programs they used at the beginning (most > bioinformatics > software are not as strong as more core application when it comes to stable > APIs, etc.) But there may be even more interesting things together. > > Let's continue this discussion on a public mailing list. I have cc'ed this topic to debian-cloud. My understanding is like this. HLBS could be an image that storage bioinformatics datas, which we can deploy HLBS in Debian. -- Thanks Harry Wei -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/cad+1egpptuqgehrnyamel68cryf4qyxrescytq4ldhikoge...@mail.gmail.com
