Event ID - 1001

Event Id1001
SourceASP.NET 1.1.4322.0
Descriptionaspnet_wp.exe [PID: 4412] was recycled because memory consumption exceeded the 297 MB (60 percent of available RAM).
Event InformationCAUSE:
This problem occurs because the default value for the maxRequestLength parameter in the <httpRuntime> section of the Machine.config file is 4096 (4 megabytes). As a result, files that are larger than this value are not uploaded by default.
RESOLUTION:
To resolve this problem, use one of the following methods:
1. In the Machine.config file, change the maxRequestLength attribute of the <httpRuntime> configuration section to a larger value. This change affects the whole computer.
2. In the Web.config file, override the value of maxRequestLength for the application. For example, the following entry in Web.config allows files that are less than or equal to 8 megabytes (MB) to be uploaded:<httpRuntime maxRequestLength="8192" />

The following information from a Newsgroup post may help:

This error is caused because there could be a long period of inactivity (user inactivity). You would gain if physical memory is increased to attain a good level of performance.
In general can take help from PERFMON(SYSMON) to capture counters for H/w to assess the usage.
For more information click on the link given below to a Microsoft article.
Reference LinksPRB: Cannot Upload Large Files When You Use the HtmlInputFile Server Control

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