Ravi,
Got it thanks. I’ve kicked this off, it seems be doing OK.
I am a little concerned about a slow creep of memory
usage:
* swap (64GB) completed filled up on server_1
* general memory usage creeping up slowly over time.
$
free -m
total used free shared
buff/cache available
Mem:
128829 55596 614 53
72618 71783
Swap:
61034 61034 0
Similar issue on server_2, though lower starting
memory usage:
The “available” number is slowly going down - at
this rate, probably will go to 0 before heal is done.
We are actually running 3.8.6, I’d like to try to
pause the heal, upgrade to 3.8.7, and resume. Is this possible
heal suspend/resume possible or advisable?
The upgrade idea came from this on bugzilla (not
100% if it will help my leak):
Even without doing the upgrade, I may need to
restart glusterfs-server anyway to reset memory usage.
Thanks,
Jackie
On 12/29/2016 10:46 AM,
Jackie Tung wrote:
Thanks very much for the
advice.
Would you mind elaborating
on the "no io" recommendation? It's somewhat hard
for me to guarantee this without a long
maintenance window.
What is the consequence of
having IO at point of add-brick, and for the heal
period afterwards?
Sorry I wasn't clear. Since you're running 16
distribute legs (16x2), a lot of self-heals would be
running and there is a chance that clients might
experience slowness due to the self-heals. Other than
that it should be fine.
Thanks,
Ravi
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