[Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver

2017-04-11 Thread yuliy...@cmss.chinamobile.com
hi,all why we use sha256 instead md5 in chunk based backup-driver , in the current file chunkeddriver.py, we have object_sha256['sha256s'] list to store all the sha256 value of sha_block_size data , why we do not use md5 ,md5 is faster compute than sha256,and we all use the md5 value in _bac

[Openstack] [openstack-dev][swift] MPU

2017-04-11 Thread Archana C
Hi All Dear List,  I am trying to do SLO upload of large object. The naming convention of the segmentswill include a timestamp. The scenario I tried is described below:1. Created container 2. Used CURL command to upload segments.3. Uploaded the manifest file. Result looks some what like this #

[Openstack] Ops Meetups Team Meeting Reminder

2017-04-11 Thread Melvin Hillsman
Hey everyone, Just a reminder that the meetups team will be meeting today 4/11 at 1500UTC Agenda: https://etherpad.openstack.org/p/ops-meetups-team https://www.worldtimebuddy.com/?qm=1&lid=100,1816670,2147714,4699066&h=100&date=2017-4-11&sln=15-16 https://www.worldtimebuddy.com/?qm=1&lid=100,26

Re: [Openstack] Ops Meetups Team Meeting Reminder

2017-04-11 Thread xico loco
GREAT SUCCESS !!! 2017-04-11 10:51 GMT-03:00 Melvin Hillsman : > Hey everyone, > > Just a reminder that the meetups team will be meeting today 4/11 at 1500UTC > > Agenda: https://etherpad.openstack.org/p/ops-meetups-team > > > https://www.worldtimebuddy.com/?qm=1&lid=100,1816670, > 2147714,469906

Re: [Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver

2017-04-11 Thread Muralidhar Balcha
Hi, The probability of collision with MD5 is more compared to SHA256 based message digests. Even SHA128 is not strong enough and most dedupe engines use SHA256 based message digest. Obviously if there is a collision, the incremental backup may not capture modified data which result in corrupt d

Re: [Openstack] EC2API Very Slow

2017-04-11 Thread Jay Pipes
On 04/10/2017 04:25 PM, Georgios Dimitrakakis wrote: Hello again, after some time... The "nova list" command is very fast indeed and the only problem I observer is through the EC2 API. I have found out the following bug and I believe is related to it, what do you people think? https://bugs.la

Re: [Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver

2017-04-11 Thread yang, xing
Hi, Please see the following article regarding the risks of using MD5. http://searchsecurity.techtarget.com/news/4500270165/MD5-vulnerability-renews-calls-for-faster-SHA-256-transition Thanks, Xing From: yuliy...@cmss.chinamobile.com [yuliy...@cmss.chinamobile.

Re: [Openstack] LinuxBridge Agent Error

2017-04-11 Thread Daniel Russell
This is somewhat unrelated to the original email, but more of a question of an issue I have recently come across that seems tangentially related. When run_one_command is executed and the message is sent to rootwrap via that pipe, if rootwrap errors for some reason, I get " Unserializable message

[Openstack] controller redundancy

2017-04-11 Thread Konstantin Raskoshnyi
Hi guys, I'm new to openstack. Installed mirantis os 9, If one of controllers goes down - vm machines are not accesible, I though openstack supposed to work even if one controller is alive Any thoughts? ___ Mailing list: http://lists.openstack.org/cgi-bi