Open Stack

Hi,
     It seems that John has helped a lot. I just share 2 blogs that I 
think is related with your issue.

https://swiftstack.com/blog/2012/04/09/swift-capacity-management/
https://swiftstack.com/blog/2013/12/20/upgrade-openstack-swift-no-downtime/

-- Jonathan Lu

On 2014/12/17 4:06, Amit Anand wrote:
> Thanks again John. Out of curiosity, is it possible to see what is 
> where? Lets say I have uploaded a video and wanted to see where the 
> three copies like out of the 4 nodes I have?
>
> And you guys dont have a free version of Swiftstack available per 
> chance do you :-)
>
>
>
>
> On Tue, Dec 16, 2014 at 12:48 PM, John Dickinson <me at not.mn 
> <mailto:me at not.mn>> wrote:
>
>     Assuming your regions are pretty close to the same size, that's
>     exactly what you'll get with 3 replicas across 2 regions. Some
>     data will have 2 replicas in region 1 and one in region 2. Other
>     data will have 1 in region 1 and 2 in region 2.
>
>     --John
>
>
>
>
>     > On Dec 16, 2014, at 9:39 AM, Amit Anand <aanand at viimed.com
>     <mailto:aanand at viimed.com>> wrote:
>     >
>     > Ok cool Ill wait it out see what happens. So now I have another
>     stupid question - after all is said and done, how many copies of
>     my data will I have?! What I am aiming for is something like 2
>     regions and 3 replicas ie, 2 copies of the data in region one and
>     one copy in region 2.
>     >
>     > On Tue, Dec 16, 2014 at 12:35 PM, John Dickinson <me at not.mn
>     <mailto:me at not.mn>> wrote:
>     > That's normal. See the "...or none can be due to
>     min_part_hours". Swift is refusing to move more data until the
>     stuff likely currently in flight has settled. See
>     https://swiftstack.com/blog/2012/04/09/swift-capacity-management/
>     >
>     > --John
>     >
>     >
>     >
>     >
>     >
>     >
>     > > On Dec 16, 2014, at 9:09 AM, Amit Anand <aanand at viimed.com
>     <mailto:aanand at viimed.com>> wrote:
>     > >
>     > > Hi John thank you!
>     > >
>     > > So I went ahead and added two more storage nodes to the
>     existing rings (object, account, container) and tried to rebalance
>     on the controller I got this:
>     > >
>     > > [root at controller swift]# swift-ring-builder object.builder
>     rebalance
>     > > Reassigned 1024 (100.00%) partitions. Balance is now 38.80.
>     > >
>     -------------------------------------------------------------------------------
>     > > NOTE: Balance of 38.80 indicates you should push this
>     > >       ring, wait at least 1 hours, and rebalance/repush.
>     > >
>     -------------------------------------------------------------------------------
>     > >
>     > >
>     > > For all three. So while waiting, I went ahead and added the
>     *.gz files and swift.conf to the new nodes and started the Object
>     Storage Services on the both the new storage nodes.... Now I am
>     seeing this after I try to rebalance after waiting about an hour:
>     > >
>     > > [root at controller swift]# swift-ring-builder object.builder
>     rebalance
>     > > No partitions could be reassigned.
>     > > Either none need to be or none can be due to min_part_hours [1].
>     > >
>     > > Devices 4,5,6,7 are the new ones I added in region 2.
>     > >
>     > >
>     > > [root at controller swift]#  swift-ring-builder object.builder
>     > > object.builder, build version 9
>     > > 1024 partitions, 3.000000 replicas, 2 regions, 2 zones, 8
>     devices, 38.80 balance
>     > > The minimum number of hours before a partition can be
>     reassigned is 1
>     > > Devices:    id  region  zone      ip address port  replication
>     ip  replication port      name weight partitions balance meta
>     > >              0       1     1       10.7.5.51 6000     
>      10.7.5.51              6000      sda3 100.00       501   30.47
>     > >              1       1     1       10.7.5.51 6000     
>      10.7.5.51              6000      sda4 100.00       533   38.80
>     > >              2       1     1       10.7.5.52 6000     
>      10.7.5.52              6000      sda3 100.00       512   33.33
>     > >              3       1     1       10.7.5.52 6000     
>      10.7.5.52              6000      sda4 100.00       502   30.73
>     > >              4       2     1       10.7.5.53 6000     
>      10.7.5.53              6000      sda3 100.00       256  -33.33
>     > >              5       2     1       10.7.5.53 6000     
>      10.7.5.53              6000      sda4 100.00       256  -33.33
>     > >              6       2     1       10.7.5.54 6000     
>      10.7.5.54              6000      sda3 100.00       256  -33.33
>     > >              7       2     1       10.7.5.54 6000     
>      10.7.5.54              6000      sda4 100.00       256  -33.33
>     > >
>     > >
>     > >
>     > > All three have -33.33 (container, object, account)  for their
>     balance. Is this normal or did do something incorrect? It doesnt
>     seem to be replicating the data to the new nodes (or at least it
>     looks like it stopped?)  but I am not sure. Would appreciate any
>     insight. Thanks!
>     > >
>     > > Amit
>     > >
>     > >
>     > >
>     > >
>     > > On Mon, Dec 15, 2014 at 1:49 PM, John Dickinson <me at not.mn
>     <mailto:me at not.mn>> wrote:
>     > > Sounds like you're looking for a global cluster. You don't
>     need multiple rings for this. Swift can support this. When you add
>     a new device to a ring, you add it in a different region, and
>     Swift takes care of it for you.
>     > >
>     > > Here's some more information:
>     > >
>     > >
>     http://docs.openstack.org/developer/swift/admin_guide.html#geographically-distributed-clusters
>     > > https://www.youtube.com/watch?v=mcaTwhP_rPE
>     > > https://www.youtube.com/watch?v=LpmBRqevuVU
>     > >
>     > > https://swiftstack.com/blog/2013/07/02/swift-1-9-0-release/
>     > >
>     https://swiftstack.com/blog/2012/09/16/globally-distributed-openstack-swift-cluster/
>     > >
>     https://www.swiftstack.com/docs/admin/cluster_management/regions.html
>     > >
>     > >
>     > >
>     > > --John
>     > >
>     > >
>     > >
>     > >
>     > >
>     > > > On Dec 15, 2014, at 10:15 AM, Amit Anand <aanand at viimed.com
>     <mailto:aanand at viimed.com>> wrote:
>     > > >
>     > > > Hi all,
>     > > >
>     > > > I was wondering if anyone knew of any good blog posts and
>     videos that could show/explain what I am trying to do. I have Juno
>     setup and it working great (thanks to everyone on heres help)!
>     Now, I would like to add two more Object Store nodes, but as a
>     separate "datacenter" as it were and replicate between my existing
>     ring and the new one. Now, Im not sure exactly what to do for the
>     account/container/object rings and how to get them to replicate
>     (so if one goes down the other will still continue to serve data).
>     I am also going to try and add another storage node just as a
>     backup for existing data. Would anyone have any good links to send
>     me I would appreciate it!
>     > > >
>     > > > Thanks!
>     > > > Amit Anand
>     > > > _______________________________________________
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>     > >
>     > >
>     >
>     >
>
>
>
>
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