NWUI 无法获取控制面板监视的最新计数，并显示 monitoring.get.error

Summary: NetWorker Web 用户界面 (NWUI) 用于管理 NetWorker 数据区。NWUI 控制面板选项卡显示错误“无法获取控制面板的最新计数。monitoring.get.error“，并且不显示策略、工作流和作的详细信息（成功、失败、正在运行、待处理）。

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Symptoms

NWUI 控制台显示：

Failed to fetch latest counts for Dashboard
monitoring.get.error

NWUI 控制台

Linux：而 /nsr/authc/logs/nwui.log 显示：
Windows：而 C:\Program Files\EMC NetWorker\nsr\authc-server\tomcat\logs\nwui.log 显示：

HH:MM:SS [https-jsse-nio-9090-exec-7] ERROR c.e.n.c.n.i.MonitoringApi - Error in fetching count of activities based on status from Monitoring Service. java.net.ConnectException: Connection refused: connect
HH:MM:SS [https-jsse-nio-9090-exec-3] ERROR c.e.n.c.n.i.MonitoringApi - Error in fetching count of activities based on status from Monitoring Service.

Linux：而 /nsr/nwui/monitoring/app/logs/monitoring-app.log 显示：
Windows：而 C:\Program Files\EMC NetWorker\nwui\monitoring\app\logs\monitoring-app.log 显示：

YYYY-MM-DD HH:MM:SS [StartupInfoLogger] [main] INFO  com.dell.emc.nw.monitoring.NwMonitoringApplication - Started NwMonitoringApplication in 22.145 seconds (JVM running for 25.477)
YYYY-MM-DD HH:MM:SS [DirectJDKLog] [https-jsse-nio-9095-exec-6] INFO  org.apache.coyote.http11.Http11Processor - Error parsing HTTP request header
 Note: further occurrences of HTTP request parsing errors will be logged at DEBUG level.
java.lang.IllegalArgumentException: Request header is too large
	at org.apache.coyote.http11.Http11InputBuffer.parseHeaders(Http11InputBuffer.java:614) ~[tomcat-embed-core-9.0.48.jar!/:?]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:292) [tomcat-embed-core-9.0.48.jar!/:?]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.48.jar!/:?]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) [tomcat-embed-core-9.0.48.jar!/:?]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) [tomcat-embed-core-9.0.48.jar!/:?]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.48.jar!/:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_321]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_321]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.48.jar!/:?]
	at java.lang.Thread.run(Thread.java:750) [?:1.8.0_321]

Cause

HTTP 标头大小的默认 monitoring-app.properties 设置为 8 KB。默认 HTTP 标头可能不足以容纳具有大型 Active Directory 用户或组设置的所有标头。

Resolution

增加 NetWorker 服务器上的 monitoring-app.properties HTTP 标头大小设置。

  • 停止 "NetWorker Management Web UI Server" 服务：
Linux： 
sudo systemctl stop nwui
Windows： 
net stop nwui
  • 打开 monitoring-app.properties 文本编辑器中的文件：
Linux：  
sudo vi /nsr/nwui/monitoring/app/conf/monitoring-app.properties
Windows： 
notepad C:\Program Files\EMC NetWorker\nwui\monitoring\app\conf\monitoring-app.properties
  • 为 添加新行 server.max-http-header-size 值为 32 KB 的选项
server.max-http-header-size=32KB
  • 将更改保存到 monitoring-app.properties 文件中定义。
  • 启动 "NetWorker Management Web UI Server" 服务：
Linux： 
sudo systemctl start nwui
Windows： 
net start nwui
Article Properties
Article Number: 000201656
Article Type: Solution
Last Modified: 18 Nov 2025
Version:  2
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