什么会导致 EMS 消息被丢弃？

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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

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.