topic Re: can't read "splunkdestinationip_withrd": no such variable in All Apps and Add-ons

can't read "splunkdestinationip_withrd": no such variable

suarezry — Tue, 18 Dec 2018 20:48:53 GMT

We are running Splunk v7.2.1 on-premise with F5 LTM v11.5.4. We are seeing some F5 events in splunk (source=bigip.snmptrap and source=bigip.syslog) but we suspect that we are missing a great deal more. The following is logged in the F5:/var/log/ltm:

Dec 18 04:20:19 slot1/my-f5-ltm err scriptd[8262]: 014f0013:3: Script (/Common/analytics-iapp_splunk-send_stats1) generated this Tcl error: (script did not successfully complete: (can't read "splunkdestinationip_withrd": no such variable     while executing "string compare "$splunkdestinationip_withrd" "0" "     ("Splunk" arm line 5)     invoked from within "switch -- $format {                 "Splunk" -                 "F5 Analytics" {                     catch {exec /bin/gzip $filename$i$ext -f}         ..."     ("for" body line 4)     invoked from within "for {set i 0} {$i <= $currentfile} {incr i} {             set curl_response "fail"             set ext ""         switch -- $format {                 ..." line:2619))
Dec 18 04:20:19 slot1/my-f5-ltm err mcpd[8429]: 0107167d:3: Data publisher not found or not implemented when processing request (unknown request), tag (2901).

We do have the correct IP and port listed in "Analytics System Configuration" section and we are seeing some F5 events. Any idea how to fix these errors?

Re: can't read "splunkdestinationip_withrd": no such variable

petom — Wed, 19 Dec 2018 19:21:58 GMT

This error is related to iApp running on F5 LTM.
Would it be this one?
https://devcentral.f5.com/codeshare/f5-analytics-iapp

Try to check on F5 site.
I assume that there is missing configuration, which didn't populate splunkdestinationip_withrd variable.

Re: can't read "splunkdestinationip_withrd": no such variable

prakash007 — Wed, 19 Dec 2018 20:25:41 GMT

@suarezry : did you look at this f5 article related to that error...
https://support.f5.com/csp/article/K17398511

Re: can't read "splunkdestinationip_withrd": no such variable

richgalloway — Sat, 12 Jan 2019 20:33:13 GMT

@suarezry Is your problem resolved? If so, please accept one of the answers.

Re: can't read "splunkdestinationip_withrd": no such variable

suarezry — Mon, 14 Jan 2019 15:20:04 GMT

Sorry, this wasn't a splunk issue. I logged a case with F5 and it turned out to be an issue with the iApp. They have released v3.7.2rc5 of the iApp to address this.