Corrupted fields problem

[dunyaelbasan]

I have a problem on this search below for last 25 days:

index=syslog Reason="Interface physical link is down" OR Reason="Interface physical link is up" NOT mainIfname="Vlanif*" "nw_ra_a98c_01.34_krtti"

Normally field7 values are like these ones:

Region field7 Date mainIfname Reason count
ASYA nw_ra_m02f_01.34pndkdv may 9 GigabitEthernet0/3/6 Interface physical link is up 3
ASYA nw_ra_m02f_01.34pldtwr may 9 GigabitEthernet0/3/24 Interface physical link is up 2

But recently they wee like this:

00:00:00.599 nw_ra_a98c_01.34_krtti
00:00:03.078 nw_ra_a98c_01.34_krtti

I think problem may be related to:

It started to happen after the disk free alarm. (-Cri- Swap reservation, bottleneck situation, current value: 95.00% exceeds configured threshold: 90.00%. : 07:17 17/02/20)
Especially This is not about disk, it's about swap space, the application finishes memory and then goes to swap use. There was memory increase before, but obviously it was insufficient, it is switching to swap again.
I need to understand: ''Why they use so many resources?''

[richgalloway]

It's not clear what problem you're asking about. Is the problem with a Splunk search, your Ethernet interfaces, disk space, swap space, or memory use?

[dunyaelbasan]

Especially my purpose is trying to fix irrelevant values on my search results at field 7 side.
I've attached 2 screen shots for clarification.

[richgalloway]

Please share some sample events (not just field7) and the props.conf settings for the sourcetype.

[dunyaelbasan]

I've attached the xample events, one from the normal situation, and one from the problematic situation.

https://drive.google.com/drive/folders/1IaswXnbWTORN0ES0NzL0ceDAHr4iIyS6?usp=sharing

inside of props.conf:

TRANSFORMS-ddos_routing = ddos_routing

TRANSFORMS-ddos_sourcetype_cloud = ddos_cloud

TRANSFORMS-ddos_sourcetype_host = ddos_host

TRANSFORMS-ddos_sourcetype_tms = ddos_tms

TRANSFORMS-ddos_sourcetype_profiled = ddos_profiled

TRANSFORMS-access_routing = access_routing

TRANSFORMS-access_sourcetype_switch = access_switch

TRANSFORMS-access_sourcetype_gpon = access_gpon

TRANSFORMS-access_sourcetype_router = access_router