Dell Unity:uDoctor 排程工作觸發高 CPU 使用率

Summary: APEX AIOps 使用的特定服務資料收集 (SDC) 附掛程式可能會在 uDoctor 排程工作期間間歇性觸發多個 PostgreSQL (PSQL) 查詢,導致主要儲存處理器上的 CPU 使用率偏高約 15 分鐘。此問題不會影響手動產生的服務資料收集,且已在 Unity OE 版本 5.0.3 中解決。

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Symptoms

主要儲存處理器的 CPU 使用率每天會同時達到 90-100%,並在高維持約 15 分鐘。

Cause

APEX AIOps 團隊已發現特定服務資料收集 (SDC) 附掛程式可能會間歇性觸發多個 PostgreSQL (PSQL) 命令的問題。


發生這種情況時,產生的 PSQL 查詢可能會導致負責執行 uDoctor 任務的主要儲存處理器 (SP) 上出現大量 CPU 使用率。

 

注意: 手動生成服務數據收集時,不會發生此行為。此問題只會影響 uDoctor 排程工作,包括為 APEX AIOps 產生的每日記錄收集。

Resolution

此問題 已在 Unity OE 版本 5.0.3 中解決,其中包括程式碼修正,可防止因受影響的 uDoctor 排程工作而導致 CPU 使用率過高。


如需 Dell Unity OE 版本和版本排程的其他資訊,請參閱 Dell Unity OE 矩陣 知識文章。

Additional Information

若要確認是否存在此問題,請從 SSH 終端機在 Unisphere CLI 中執行下列命令:


/spX/EMC/backend/log_shared/EMCSystemLogFile.log

service@spb:~# tailf 00_emc_backend_log_shared/EMCSystemLogFile.log | grep -i udoctor
" 2020-02-16 T 13:03:12 .155Z" "Array_spb@Serial_Number" "Kittyhawk_safe" "9134" "unix/spb/root" "INFO" "1:115000d" :: " Internal Information only. PSM File "udoctor" Deleted. " :: Category=System Component=psm TimeZone=UTC

"2020-02-17 T 13:03:12 .944Z" "Array_spb@Serial_Number" "Kittyhawk_safe" "9134" "unix/spb/root" "INFO" "1:115000d" :: " Internal Information only. PSM File "udoctor" Deleted. " :: Category=System Component=psm TimeZone=UTC

UEMCLI 指標 (歷史):

service@spb:~# uemcli -no /metrics/value/hist -path sp.*.cpu.summary.utilization show -interval 60 -from "2020-02-16 12:59:00" -to "2020-02-16 13:59:00"
Timestamp           |SP        |summary
                    |          |CPU
                    |          |Util %
--------------------+----------+-------
2020-02-16 13:02:00 |spa       |  13.93
                    |spb       |  66.47
2020-02-16 13:03:00 |spa       |  12.49
                    |spb       |  90.96
2020-02-16 13:04:00 |spa       |  12.94
                    |spb       |  92.63
2020-02-16 13:05:00 |spa       |  11.91
                    |spb       |  93.29
2020-02-16 13:06:00 |spa       |  5.072
                    |spb       |  92.28
2020-02-16 13:07:00 |spa       |  2.497
                    |spb       |  90.06
2020-02-16 13:08:00 |spa       |  2.452
                    |spb       |  92.38
2020-02-16 13:09:00 |spa       |  2.527
                    |spb       |  95.68
2020-02-16 13:10:00 |spa       |  2.441
                    |spb       |  98.36
2020-02-16 13:11:00 |spa       |  2.845
                    |spb       |  97.170
2020-02-16 13:12:00 |spa       |  2.466
                    |spb       |  97.096
2020-02-16 13:13:00 |spa       |  2.479
                    |spb       |  97.732
2020-02-16 13:14:00 |spa       |  2.469
                    |spb       |  98.023
2020-02-16 13:15:00 |spa       |  2.362
                    |spb       |  96.391
2020-02-16 13:16:00 |spa       |  2.697
                    |spb       |  65.053
 
UEMCLI 指標 (即時):
service@spb:~# uemcli -no /metrics/value/rt -path sp.*.cpu.summary.utilization show -interval 10
Timestamp           |SP        |summary
                    |          |CPU
                    |          |Util %
--------------------+----------+-------
2020-02-17 13:03:20 |spa       |  0.929
                    |spb       |  90.810
2020-02-17 13:03:30 |spa       |  1.928
                    |spb       |  90.980
2020-02-17 13:03:40 |spa       |  2.417
                    |spb       |  90.537
2020-02-17 13:03:50 |spa       |  1.912
                    |spb       |  91.601
2020-02-17 13:04:00 |spa       |  2.124
                    |spb       |  93.625
2020-02-17 13:04:10 |spa       |  3.828
                    |spb       |  92.191

Affected Products

Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 350F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 450F, Dell EMC Unity 500, Dell EMC Unity 500F, Dell EMC Unity 550F, Dell EMC Unity 600, Dell EMC Unity Family

Products

Dell EMC Unity 600F, Dell EMC Unity 650F, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid
Article Properties
Article Number: 000058581
Article Type: Solution
Last Modified: 17 يوليو 2026
Version:  7
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