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Recent questions tagged algorithm

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0 responses 7 views

Hello, I am trying to build new algorithm for lbaasv2 service as weighted round robin, or weighted least connect. I went through that code based of neutron-lbaas agent along with neutron-lbaas-dashboard. I was unable to the code for ...

asked Nov 1, 2017 in openstack by Suraj_Davanagere_Bas (200 points)  
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10 responses 41 views

Hi, all, I encounter some problems when using Octavia. After installing octavia with devstack, I create a load balancer named lb1 (VIP:, IP of VRRP port: for a subnet (, then a listener, a pool, and two ...

asked Oct 9, 2017 in openstack-dev by Yipei_Niu (2,060 points)   4
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5 responses 6 views

On Thu, Sep 28, 2017 at 8:38 PM, McClymont Jr, Scott <> wrote: > Hey All, > > I've got a spec up for a change I want to implement in Glance for Queens > to enhance the current checksum (md5) functionality ...

asked Sep 30, 2017 in openstack-dev by Luke_Hinds (1,500 points)   1
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0 responses 7 views

sha512_crypt is insufficient for password hashing ------------------------------------------------- ### Summary ### Use of sha512_crypt for password hashing in versions of Keystone prior to Pike, is insufficient and provides limited ...

asked Sep 17, 2017 in openstack by Luke_Hinds (1,500 points)   1
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6 responses 41 views

I'm wondering which possibilities I have to do group/host specific config file overrides. After reading [1], I'm still a little clueless. To be specific, I have this setup (expressed as Ansible inventory file): [z_compute_nodes] compute1 # ...

asked Aug 22, 2017 in openstack-dev by (3,220 points)   2 4
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25 responses 8 views

The Nova bug backlog is just over 800 open bugs, which while historically not terrible, remains too large to be collectively usable to figure out where things stand. We've had a few recent issues where we just happened to discover upgrade ...

asked Jul 26, 2017 in openstack-dev by Sean_Dague (66,200 points)   4 7 12
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62 responses 21 views

Hi everyone, Two weeks ago, as a result of a discussion at the Board+TC+UC workgroup working on "better communicating what is openstack", I started a thread[1] about moving away from big tent terminology. The thread went in a lot of ...

asked Jul 15, 2017 in openstack-dev by Thierry_Carrez (57,480 points)   3 7 12
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5 responses 23 views

[resending to include the operators list] The host_subset_size configuration option was added to the scheduler to help eliminate race conditions when two requests for a similar VM would be processed close together, since the scheduler’s ...

asked May 28, 2017 in openstack-dev by Ed_Leafe (11,720 points)   1 3 4
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0 responses 5 views

The Unified Limits session in Boston was interesting and fruitful. Here's the current summary of where I think we stand. * Current Status ** Conceptual Spec Landed ...

asked May 22, 2017 in openstack-dev by Sean_Dague (66,200 points)   4 7 12
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12 responses 78 views

Hello all, I’m modifying nova-scheduler, implementing my own scheduler; there is a way to get all the list of the scheduler hints(for example when I lunch a new Instance, add a custom Hint MY_HINT, with value 100)? I tried with def ...

asked May 4, 2017 in openstack-dev by Giuseppe_Di_Lena (340 points)   1
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15 responses 7 views

Hey everybody! Yay! (I'm sure you're all saying this, given the topic. I'll let you collect yourself from your exuberant celebration) == Background == As I'm sure you all know, we've been trying to make some hearway for a while on getting ...

asked May 4, 2017 in openstack-dev by Monty_Taylor (22,780 points)   2 4 6
0 votes
17 responses 7 views

Hi everyone, I recently got more information about the space dedicated to the "Forum" at the OpenStack Summit in Boston. We'll have three different types of spaces available. 1/ "Forum" proper There will be 3 medium-sized fishbowl rooms for ...

asked Mar 10, 2017 in openstack-dev by Thierry_Carrez (57,480 points)   3 7 12
0 votes
3 responses 3 views

One of the things that came out of the PTG was perhaps a new path forward on hierarchical limits that involves storing of limits in keystone doing counting on the projects. Members of the developer community are working through all that ...

asked Mar 8, 2017 in openstack-operators by Sean_Dague (66,200 points)   4 7 12
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0 responses 4 views

The Architecture Working Group was lucky enough to have a room allocated to us for all day Tuesday of the Pike PTG. We made good use of it to do what we are here to do: Facilitate the development of a shared architecture amongst OpenStack ...

asked Feb 28, 2017 in openstack-dev by Clint_Byrum (40,940 points)   4 5 8
0 votes
4 responses 1 view

Hi All, Following is our meeting summary: * Zainab presented her work on creating the dictionary. * Suli talked about his plan and development of Fault Genes web based database * Isaac discussed the logging research that he is doing. * The ...

asked Feb 24, 2017 in openstack-operators by Nematollah_Bidokhti (980 points)   1
0 votes
2 responses 11 views

Hi All, I was trying to understand the Ring Algorithm for Openstack Swift. I have went through official docs. I found that it uses Consistent Hashing Ring[1]. But the problem is, It doesn't mention about the features of Swift like Given 3 ...

asked Feb 10, 2017 in openstack by Sameer_Kulkarni (280 points)  
0 votes
0 responses 5 views

Dear storleters, As the deadline approaches I was thinking about the following idea: End-to-End deep learning with OpenStack Storlets Imagine that you have a huge dataset from which you could extract information using machine learning ...

asked Feb 1, 2017 in openstack-dev by (920 points)   1 1
0 votes
4 responses 5 views

Hello, We have a new build going up in our DC of Openstack Newton. We wanted to build in a shared storage solution and really liked the simplicity as well as functions of glusterFS. This would allow us to perform live migrations along with ...

asked Jan 24, 2017 in openstack by James_Fleet (340 points)   2
0 votes
1 response 3 views

Hi All, When a PUT operation is issued by Client, I have read that it goes to proxy and then Ring algorithm decides the 3(Replica Count) Nodes, to which it is transferred simultaneously. I just wanted to clarify If the proxy Node, actually ...

asked Jan 20, 2017 in openstack by Sameer_Kulkarni (280 points)  
0 votes
2 responses 33 views

We are running a 2 region Swift cluster with write affinity. I've just managed to deceive myself with the Dispersion report :-( . The last run of the populate was Early Dec, and the corresponding report happily shows 100%. All good - ...

asked Jan 13, 2017 in openstack by Mark_Kirkwood (5,760 points)   1 6 10