Swap consumption greater than 50% in MAG

[Esilva]

Hi,

My customer has:

# cat /etc/*release

SUSE Linux Enterprise Server 11 (x86_64)
VERSION = 11
PATCHLEVEL = 4
NetIQ Access Manager - Access Gateway Appliance 4.4.2.0-78 (x86_64)


# swapon -s

Filename Type Size Used Priority
/dev/sda1 partition 8384508 4544116 -1

# free
total used free shared buffers cached
Mem: 8062712 7374000 688712 2036 185004 846684
-/+ buffers/cache: 6342312 1720400
Swap: 8384508 4544116 3840392


It is evidenced that the server reports a consumption of swap memory greater than 50%

Is this behavior normal?

Otherwise, how can we improve performance?

TIA

[aburgemeister]

On 03/20/2019 11:24 AM, esilva wrote:
>
> Hi,
>
> # swapon -s
>
> Filename Type Size Used
> Priority
> /dev/sda1 partition 8384508 4544116
> -1
>
> # free
> total used free shared buffers
> cached
> Mem: 8062712 7374000 688712 2036 185004
> 846684
> -/+ buffers/cache: 6342312 1720400
> Swap: 8384508 4544116 3840392
>
> Is this behavior normal?
>
> Otherwise, how can we improve performance?

Improve what performance? Are logins slow, or page requests slow, or
other aspects of what the MAG does slow? If slow, how is that measured?

It looks like your system is using a lot o memory, but it is only at the
minimum requirements level (8 GiB RAM) so maybe that should be increased
if there is a problem. Using swap is not necessarily bad, but it can be a
limitation if it is used in situations where RAM should be used instead.
If that is happening, then performance may be impacted, but describing
that impact would be a good start. Also, the following commands may give
some useful information:

uptime

ps aux | grep java
ps aux | grep http

--
Good luck.

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