Dell Unity:uDoctor 计划任务触发高 CPU 利用率

Summary: APEX AIOps 使用的特定服务数据收集 (SDC) 插件程序可能会在 uDoctor 计划任务期间间歇性触发多个 PostgreSQL (PSQL) 查询,从而导致主存储处理器上的 CPU 利用率高约 15 分钟。此问题不会影响手动生成的服务数据收集,并在 Unity OE 版本 5.0.3 中得到解决。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

主存储处理器上的 CPU 利用率每天同时达到 90-100%,并在大约 15 分钟内保持较高水平。

Cause

APEX AIOps 团队发现了一个问题,即特定的服务数据收集 (SDC) 插件可能会间歇性触发多个 PostgreSQL (PSQL) 命令。


发生这种情况时,生成的 PSQL 查询可能会导致主存储处理器 (SP) 上的 CPU 利用率显著降低,主存储处理器负责运行 uDoctor 任务。

 

注意: 手动生成服务数据收集时不会发生此行为。此问题仅影响 uDoctor 计划任务,包括为 APEX AIOps 生成的每日日志收集。

Resolution

此问题已在 Unity OE 版本 5.0.3 中得到解决,其中包括一个代码修复,以防止受影响的 uDoctor 计划任务导致 CPU 利用率过高。


有关 Dell Unity OE 版本和发布计划的其他信息,请参阅 Dell Unity OE 矩阵 知识库文章。

Additional Information

要确认存在此问题,请从 SSH 终端在 Unisphere CLI 中运行以下命令:


/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 指标(历史):

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 指标(实时):
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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