Do I need more memory for my new Confluence server ?

lqkomrad · 11-27-2017, 12:54 AM

Yesterday, I create a virtual machine to run Confluence for my personal ( ie I'm the only user ) Wiki. The system is very sluggish and I think that I might need to allocate it 1-2GB more RAM.

Code:

free -m
              total        used        free      shared  buff/cache   available
Mem:           1839        1635          73          12         129          34
Swap:          2047        1391         656

Code:

top - 23:39:18 up 19:59,  2 users,  load average: 7.96, 8.17, 5.18
Tasks: 294 total,   1 running, 293 sleeping,   0 stopped,   0 zombie
%Cpu(s):  1.0 us,  1.1 sy,  0.0 ni, 28.4 id, 69.4 wa,  0.0 hi,  0.1 si,  0.0 st
KiB Mem :  1883748 total,    67160 free,  1698936 used,   117652 buff/cache
KiB Swap:  2097148 total,   686840 free,  1410308 used.    19672 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                        
 1648 conflue+  20   0 4007620 1.080g      0 S   2.3 60.1   7:33.51 java                           
   31 root      20   0       0      0      0 S   1.6  0.0   0:34.41 kswapd0                        
 2034 conflue+  20   0 3764828  94108    424 S   1.0  5.0   6:22.59 java

Specs:
Centos 7 64bit
2 CPU cores
2GB RAM
30GB hard drive

Thoughts? I plan on reading up on sar, htop, and other tools for analysis. In the meantime, I'd appreciate any advice from the community.

lqkomrad · 11-27-2017, 01:05 AM

I added 1GB for a total of ~3GB ( 3096MB ) . The new free -m looks a lot better.

Quote:

-sh-4.2$ free -m
total used free shared buff/cache available
Mem: 2805 2299 111 22 394 233
Swap: 2047 0 2047

pan64 · 11-27-2017, 01:33 AM

if swap was in use you need definitely add more RAM.
If that was a VM you can easily try that.
probably would be better to run confluence in docker instead of VM.