网络工程 - Cisco Kron Job 开始越来越晚 - 吾爱随笔录

我使用 Kron 工作为我们的制造工厂敲响了警钟。该应用程序有效，但作业开始晚了 35 秒以上。问题似乎越来越严重，几天前是 35 秒，现在是 47 秒。我对 Kron 进行了完整的调试，但它并没有真正了解它启动晚的原因。我可以使用哪些有用的调试来解决这个问题？

时钟同步：

CMERouter#sh clock
06:14:53.057 CDT Thu Apr 29 2021

CMERouter#sh ntp status
Clock is synchronized, stratum 3, reference is 171.66.97.126
nominal freq is 250.0000 Hz, actual freq is 249.9885 Hz, precision is 2**24
reference time is E4350DE9.22295565 (05:50:17.133 CDT Thu Apr 29 2021)
clock offset is 0.0020 msec, root delay is 0.05 msec
root dispersion is 0.05 msec, peer dispersion is 0.01 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000045786 s/s
system poll interval is 1024, last update was 1486 sec ago.
CMERouter#

这个工作：

kron occurrence ShiftChange1 at 6:00 recurring
policy-list ShiftChange

kron policy-list ShiftChange
 cli csim start 7777
!

这是 Kron Job 调试的开始：

Apr 29 06:00:47.394 CDT: Major 1, Minor 0
Apr 29 06:00:47.394 CDT: Timer Event ShiftChange1
Apr 29 06:00:47.394 CDT: Kron delay for next ShiftChange1 86400000
Apr 29 06:00:47.394 CDT: Call parse_cmd 'csim start 7777'
Apr 29 06:00:47.402 CDT: csim: called number = 7777, loop count = 1 ping count = 0

Apr 29 06:00:47.402 CDT: csimSetupPeer peer type(2), destPat(7777), matched(4), target()
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/ccCallSetupRequest:  Destination=, Calling IE Present=FALSE, Mode=0, Outgoing Dial-peer=7777, Params=0x47C5482C, Progress Indication=NULL(0)
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/ccCheckClipClir: In: Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed)
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/ccCheckClipClir:
   Out: Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed)
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/ccCallSetupRequest:
   Destination Pattern=7777, Called Number=7777, Digit Strip=FALSE
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/ccCallSetupRequest:
   Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed), Called Number=7777(TON=Unknown, NPI=Unknown), Redirect Number=, Display Info=
   Account Number=, Final Destination Flag=FALSE,
   Guid=FC7E9050-A810-11EB-91C8-E1B9F2977CF7, Outgoing Dial-peer=7777
Apr 29 06:00:47.402 CDT: //-1/xxxxxxxxxxxx/CCAPI/cc_api_display_ie_subfields:
   ccCallSetupRequest:
   cisco-username=
   ----- ccCallInfo IE subfields -----
   cisco-ani=
   cisco-anitype=0
   cisco-aniplan=0
   cisco-anipi=0
   cisco-anisi=0
   dest=7777
   cisco-desttype=0
   cisco-destplan=0
   cisco-rdie=FFFFFFFF
   cisco-rdn=
   cisco-lastrdn=
   cisco-rdntype=-1
   cisco-rdnplan=-1
   cisco-rdnpi=-1
   cisco-rdnsi=-1
   cisco-redirectreason=-1   fwd_final_type =0
   final_redirectNumber =
   hunt_group_timeout =0