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什么会导致 EMS 消息被丢弃?

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ontap-9
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适用于

ONTAP 9

问题解答

  • 该事件被 EMS 抑制算法抑制。
  • 事件处理系统实现了几种算法来限制事件。
  • 使用 event status show 命令获取有关禁止事件的信息

ontap91::> set diag -confirmation off; event status show -message-name security.invalid.login -ins

Node: ontap91-01
Message Name: security.invalid.login
Number of Indications: 13
Number of Drops: 11 
Last Indication Time: 6/2/2020 10:27:54
Last Suppressed Indication Time: 6/2/2020 10:27:54
Last Processed Indication Time: 6/2/2020 10:25:41
Stat Starting Time: 6/1/2020 12:42:59
60-minute Histogram: 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0
24-hour Histogram: 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0
7-day Histogram: 0, 0, 6, 7, 0, 0, 0
Is Chatter: false
Change since Last Chatter Calculation?: false
Number of Times Autosuppressed: 0
Number of Times Rate Limited: 0
Number of Times Timer Suppressed: 11 
Number of Times Duplicate Suppressed: 0
Number of Times Suppressed Since Last Time Logged: 5
Accumulated Bytes: 491
Severity: SVC_FAULT
Probability to Suppress: 0%
Number of Times Duplicate Suppressed (-30 secs): 0
Number of Times Duplicate Suppressed (30-60 secs): 0
Number of Times Duplicate Suppressed (60-90 secs): 0
Number of Times Duplicate Suppressed (90-120 secs): 0
Number of Times Duplicate Suppressed (120- secs): 0

追加信息

  • 使用 event config show 确定事件抑制算法是启用("on")还是禁用("off")。
注: suppression 参数可以同时禁用自动抑制和重复抑制,但不能禁用定时器抑制。
  • 有关抑制算法的详细信息,请参见 diag 命令 event show-suppression
    • ontap914::*> event show-suppression
      Node: ontap914-01
      Time since rotate   (t0):   489618s     Autosuppression enabled:   true
      Time to next rotate  (t1):   115182s   Past startup time  (  10m):   true
      Time scale    (ts=t1/t0):
                0.2352487040917613   Past min log size (  2048):   true

      Target max bytes    (T):  36700160   Per event chatter threshold:
                                        1520769
      Accumulated bytes    (A):   4119384
      Bytes remaining   (B=T-A):  32581072    Number of events not subject
      Predicted bytes  (P=A*ts):   969010     to autosuppression:    3012
                            Of events subject to autosuppression
      AutoSuppression probability          number suppressed:     720
          (a=max(0,(P-B)/P)):     0%    number rate limited:      0
                           number not suppressed:    8826
           Total indications:    12639   duplicates suppressed:     51
                           duplicates suppressed
                               in 30 seconds:     10
                           duplicates suppressed
                               in 60 seconds:      5
                           duplicates suppressed
                               in 90 seconds:      4
                           duplicates suppressed
                              in 120 seconds:      8
                           duplicates suppressed
                             after 120 seconds:      0
                             timer suppressed:      3
      Node: ontap914-02
      Time since rotate   (t0):   489627s     Autosuppression enabled:   true
      Time to next rotate  (t1):   115173s   Past startup time  (  10m):   true
      Time scale    (ts=t1/t0):
                0.2352259985662555   Past min log size (  2048):   true

      Target max bytes    (T):  36700160   Per event chatter threshold: 890109
      Accumulated bytes    (A):   2613303
      Bytes remaining   (B=T-A):  34087151    Number of events not subject
      Predicted bytes  (P=A*ts):   614647     to autosuppression:    2268
                            Of events subject to autosuppression
      AutoSuppression probability          number suppressed:      0
          (a=max(0,(P-B)/P)):     0%    number rate limited:      0
                           number not suppressed:    5144
           Total indications:    7488   duplicates suppressed:     61
                           duplicates suppressed
                               in 30 seconds:      2
                           duplicates suppressed
                               in 60 seconds:      3
                           duplicates suppressed
                               in 90 seconds:      5
                           duplicates suppressed
                              in 120 seconds:      2
                           duplicates suppressed
                             after 120 seconds:      0
                             timer suppressed:      3
      2 entries were displayed.

 

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