On 09/06/2017 05:48 AM, Serkan Çoban wrote:
Hi, Just do some ingestion tests to 40 node 16+4EC 19PB single volume. 100 clients are writing each has 5 threads total 500 threads. With 3.10.5 each server has 800MB/s network traffic, cluster total is 32GB/s With 3.12.0 each server has 200MB/s network traffic, cluster total is 8GB/s I did not change any volume options in both configs.
I just performed some *basic* IOZone tests on a 6 x (4+2) disperse volume and compared this against 3.10.5 and 3.12.0. The tests are no where near your capacity, but I do not see anything alarming in the results. (4 server, 4 clients, 4 worker thread per client)
I do notice a 6% drop in Sequential and random write performance, and gains in the sequential and random reads.
I need to improve the test to do larger files and for a longer duration, hence not reporting any numbers as yet.
Tests were against 3.10.5 and then a down server upgrade to 3.12.0 and remounting on the clients (after the versions were upgraded there as well).
I guess your test can be characterized as a sequential write workload (ingestion of data). What is the average file size being ingested? I can mimic something equivalent to that to look at this further.
I would like to ensure there are no evident performance regressions as you report.
Shyam _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
