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Re: [Moosefs-users] How many mfs clients can be supported by thesamemaster at the same time!!
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From: 颜. <rw...@12...> - 2011-01-15 06:41:08
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Because there is no quota function in MFS. How can we provide multitenancy function based on MFS? 2011-01-15 The last thing I want to do start a flame war, but I don't understand how you are setting up your cloud infrastructure where a 2T vm image is a good idea. My initial impression is that there is something about the deployment that would justify that kind of vm image. If you need to access large amounts of data storage from a vm, then the vm should mount the moosefs share, maintaining a virtual machine disk image of that size is bad for performance (every write translates into large scale chunk changes) If you want to use a distributed file system for a cloud infrastructure (and mooseFS is an excellent choice) then I am going to recommended that you limit the writes to the virtual machine image, and offload as much as you can to mounts of the master moosefs filesystem. In my deployments I have all storage class file access on moosefs mounts and it has greatly improved the performance of the filesystem and the virtual machines. -Tom Hatch On Fri, Jan 14, 2011 at 10:19 PM, 颜秉珩 <rw...@12...> wrote: we use MFS to create virtual block device, A block device larger than 2T is much popular nowadays! So I think 2T limitation impacts the MFS application in this area (cloud storage environment) 发件人： Michal Borychowski 发送时间： 2010-12-30 15:25:39 收件人： 'yanbh' 抄送： 'moosefs-users' 主题： Re: [Moosefs-users] How many mfs clients can be supported by thesame master at the same time!! Hi! From: yanbh [mailto:ya...@in...] Sent: Thursday, December 30, 2010 7:49 AM To: moosefs-users Subject: [Moosefs-users] How many mfs clients can be supported by the same master at the same time!! Dear all! I have some questions about MFS, as following! 1. how many mfsclient can be supported by the same master server at the same time? what about 100 client mounting the same mfs master at the same? what about the performace? [MB] 100 clients would not be a problem. Performance should also not be affected (metadata in mfs master are kept in RAM for speed). Please have a look here: http://80.48.16.122/mfs.cgi?masterport=9421&mastername=bellona_main§ions=MS for our installation. 2. we know the mfs can only support a file whose size less than 2T, this is a bad limitation, when to remove it ? any plan? [MB] Is it really a big problem for you? Can’t you divide the files to be not bigger than 2TB? For the moment removing this limiation doesn’t have big priority. whatever, Thx for the developers giving us a execlent DFS!! [MB] :) If you need any further assistance please let us know. Kind regards Micha?Borychowski MooseFS Support Manager _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Gemius S.A. ul. Woska 7, 02-672 Warszawa Budynek MARS, klatka D Tel.: +4822 874-41-00 Fax : +4822 874-41-01 Best Regards! 2010-12-30 yanbh ------------------------------------------------------------------------------ Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ moosefs-users mailing list moo...@li... https://lists.sourceforge.net/lists/listinfo/moosefs-users |
