Here are some stats. This server has been up for about 1 day 6 hours and
has had about 500,000 session on it (HAProxy stat).
>From a top command you can see that sync_gateway has 40% of the memory
currently. The used memory will increase slowly with traffic until it is
all used up and then it crashes and restarts.
I have tried to compile and run the master build, but it starts to have a
lot of log errors about sockets disconnecting after awhile, so I went back
to using 1.0.4.
538 root 20 0 3765652 2.349g 5960 S 1.3 40.0 35:11.40
sync_gateway
1 root 20 0 33480 2808 1492 S 0.0 0.0 0:01.28 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:03.77
ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/0:0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kworker/0:0H
6 root 20 0 0 0 0 S 0.0 0.0 0:00.53
kworker/u8:0
root@sync01:~# date
Wed Apr 1 18:30:53 CDT 2015
root@sync01:~# free
total used free shared buffers cached
Mem: 6153524 2664664 3488860 216 128776 179636
-/+ buffers/cache: 2356252 3797272
Swap: 2096444 0 2096444
root@sync01:~# date
Wed Apr 1 19:00:14 CDT 2015
root@sync01:~# free
total used free shared buffers cached
Mem: 6153524 2735788 3417736 216 129692 181180
-/+ buffers/cache: 2424916 3728608
Swap: 2096444 0 2096444
root@sync01:~# date
Wed Apr 1 19:53:01 CDT 2015
root@sync01:~# free
total used free shared buffers cached
Mem: 6153524 2884424 3269100 216 131268 184148
-/+ buffers/cache: 2569008 3584516
Swap: 2096444 0 2096444
On Wednesday, April 1, 2015 at 11:12:16 AM UTC-7, Adam Fraser wrote:
>
> Hi Brett,
>
> I'd be interested in more details about your Sync Gateway usage during the
> period of your testing, to understand whether this is actually a potential
> memory "leak", versus increased memory usage in response to activity in the
> environment.
>
> I saw your earlier post (about several thousand active users eventually
> using up 6GB of RAM). Some more specifics about usage over the 12 hours
> might help understand whether the memory usage is expected or an issue.
>
> Thanks,
> Adam
>
>
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