[Bugs] [Bug 1309462] Upgrade from 3.7.6 to 3.7.8 causes massive drop in write performance. Fresh install of 3.7.8 also has low write performance

bugzilla at redhat.com bugzilla at redhat.com
Thu Feb 18 11:44:43 UTC 2016


Oleksandr Natalenko <oleksandr at natalenko.name> changed:

           What    |Removed                     |Added
                 CC|                            |oleksandr at natalenko.name

--- Comment #2 from Oleksandr Natalenko <oleksandr at natalenko.name> ---
I confirm the issue with 3.7.8 client working with replicated volume. However,
if the volume is not replicated, the issue does not rise.

Testing freshly created pure distributed volume shows 60–90 MB/s. Adding brick
for replica 2 with add-brick lowers throughput to 1–6 MB/s. Removing replica
brick with remove-brick brings throughput to 60–90 MB/s again.

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