smalenfant opened a new issue #2250: MonitorConfigPoller panic: runtime error: invalid memory address or nil pointer dereference URL: https://github.com/apache/incubator-trafficcontrol/issues/2250 Traffic Monitor crash and exited. I don't have much details except that procNetDev was not returning from astats json output. From traffic_monitor.log: ``` ERROR: cache.go:325: 2018-04-16T17:08:34.339643848Z: precomputeAstats psp6cdedge03 handle precomputing outbytes 'procNetDev empty' ERROR: stat.go:87: 2018-04-16T17:08:34.351132976Z: stat poll getting vitals for psp6cdedge03: Error parsing procnetdev: no fields found ERROR: cache.go:325: 2018-04-16T17:08:42.098836427Z: precomputeAstats psp6cdedge03 handle precomputing outbytes 'procNetDev empty' ERROR: stat.go:87: 2018-04-16T17:08:42.10609049Z: stat poll getting vitals for psp6cdedge03: Error parsing procnetdev: no fields found ERROR: asm_amd64.s:2197: 2018-04-18T01:31:26.283370864Z: MonitorConfigPoller: getting monitor config map: Get https://cdn1cdcms0001.coxlab.net/api/1.2/cdns/cdn1/configs/monitoring.json: net/http: request canceled (Client.Timeout exceeded while awaiting headers) <nil> ERROR: asm_amd64.s:514: 2018-04-28T05:30:01.733534769Z: MonitorConfigPoller panic: runtime error: invalid memory address or nil pointer dereference ```
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