Re: Bandwidth and latency requirements

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It was simple emulation of network packets on the port of the server node using tc tool tc qdisc add dev <port> root netem delay <time>ms. The files were created using dd tool (in-built in linux) and mkdir. Post the IO's we verified with no pending heals.


Thanks & Regards
  

On Thu, Sep 28, 2017 at 2:06 PM, Arman Khalatyan <arm2arm@xxxxxxxxx> wrote:
Interesting table Karan!,
Could you please tell us how you did  the benchmark? fio or iozone orsimilar?

thanks
Arman.

On Wed, Sep 27, 2017 at 1:20 PM, Karan Sandha <ksandha@xxxxxxxxxx> wrote:
Hi Collin,

During our arbiter latency testing for completion of ops we found the below results:-  an arbiter node in another data centre and both the data bricks in the same data centre,

1) File-size 1 KB (10000 files ) 
2) mkdir   


Latency

5ms

10ms

20ms

50ms

100ms

200ms

Ops

Create

755 secs

1410 secs

2717 secs

5874 secs

12908 sec

26113 sec

Mkdir

922 secs

1725 secs

3325 secs

8127 secs

16160 sec

30079 sec

 

Thanks & Regards

On Mon, Sep 25, 2017 at 5:40 AM, Colin Coe <colin.coe@xxxxxxxxx> wrote:
Hi all

I've googled but can't find an answer to my question.

I have two data centers.  Currently, I have a replica (count of 2 plus arbiter) in one data center but is used by both.

I want to change this to be a distributed replica across the two data centers.

There is a 20Mbps pipe and approx 22 ms latency. Is this sufficient?  

I really don't want to do the geo-replication in its current form.

Thanks

CC

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--

KARAN SANDHA

ASSOCIATE QUALITY ENGINEER

Red Hat Bangalore

ksandha@xxxxxxxxxx    M: 9888009555     IM: Karan on @irc


_______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://lists.gluster.org/mailman/listinfo/gluster-users




--

KARAN SANDHA

ASSOCIATE QUALITY ENGINEER

Red Hat Bangalore

ksandha@xxxxxxxxxx    M: 9888009555     IM: Karan on @irc

_______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://lists.gluster.org/mailman/listinfo/gluster-users

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