Maximum value of maxRequestLength?

Question

If we are using IIS 7 and .Net Framework 4, what will be the maximum value of maxRequestLength?

score 92 · Answer 1 · answered Nov 09 '11 at 07:44

92

Maximum is 2097151, If you try set more error occurred.

answered Nov 09 '11 at 07:44

Petr

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I'm confused. The accepted answer is 2147483647, but this answer which is up-voted a lot more says 2097151. Which is it? – Homer Jan 08 '16 at 21:27
7

@Homer one is bytes and the other is kilobytes. The value is specified in kB so you should use 2097151 – Ramón May 02 '16 at 23:06
@Homer the accepted answer only states the maximum value of the int type, where as IIS accepts this as the maximum value. – ywm Jul 06 '16 at 10:39

score 77 · Answer 2 · edited Sep 04 '19 at 18:41

77

These two settings worked for me to upload 1GB mp4 videos.

<system.web>
    <httpRuntime maxRequestLength="2097152" requestLengthDiskThreshold="2097152" executionTimeout="240"/>
</system.web>
<system.webServer>
    <security>
        <requestFiltering>
            <requestLimits maxAllowedContentLength="2147483648" />
        </requestFiltering>
    </security>
</system.webServer>

edited Sep 04 '19 at 18:41

Stefano Oliva

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answered Jan 05 '15 at 12:54

JJ_Coder4Hire

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If I am not wrong the maxRequestLength is in bytes. So the max value should be also 2147483648 – Sanchitos Aug 16 '19 at 01:45
You saved my day. Thanks a lot. This solution has resolved "System.OutOfMemory" issue. – Abbas Panjwani Nov 25 '19 at 11:02
3

@Sanchitos. The maxRequestLength is in KB. – batpox Jul 20 '20 at 19:05

Waleed Al-Balooshi · Accepted Answer · 2010-12-28T18:34:58.360

51

As per MSDN the default value is 4096 KB (4 MB).

UPDATE

As for the Maximum, since it is an int data type, then theoretically you can go up to 2,147,483,647. Also I wanted to make sure that you are aware that IIS 7 uses maxAllowedContentLength for specifying file upload size. By default it is set to 30000000 around 30MB and being an uint, it should theoretically allow a max of 4,294,967,295

edited Dec 28 '10 at 18:34

answered Dec 28 '10 at 18:21

Waleed Al-Balooshi

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He's asking for the max, not the default. – Anthony Pegram Dec 28 '10 at 18:22
@Anthony thanks for the correction, I didn't notice the maximum part :) – Waleed Al-Balooshi Dec 28 '10 at 18:36
Works great for IIS 8.0 as well if anyone runs into this! – Nathan May 02 '17 at 22:17

score 7 · Answer 4 · answered Dec 28 '10 at 18:23

7

2,147,483,647 bytes, since the value is a signed integer (Int32). That's probably more than you'll need.

answered Dec 28 '10 at 18:23

Mark

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Equivalent of your value would be 2,097,152 (kB), which is *out of range* by 1. The maximum value is 2,097,151 (kB) i.e. 2,147,482,624 bytes. – Peter Ivan Jan 10 '13 at 12:47
3

Int32.MaxValue is 2,147,483,647. I didn't make this number up. If you doubt me, open up PowerShell and type `[int]::maxvalue` and see what you get. – Mark Jan 10 '13 at 16:36
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Have you tried to set `maxRequestLength` to 2,147,483,647 or 2,097,152? You'll get a Configuration Error. That's why your answer is incorrect and I comment on it. `[int]::maxvalue` is not in an allowed range. – Peter Ivan Jan 11 '13 at 07:12
I've test maxRequestLength = 2147483648 and did not receive an error for IIS 7.5. Mark is correct. Perhaps it is different for IIS 6? – Timothy Schoonover Sep 25 '15 at 14:25

score 2 · Answer 5 · edited Feb 28 '19 at 13:06

2

Right value is below. (Tried)

maxRequestLength="2147483647" targetFramework="4.5.2"/>

edited Feb 28 '19 at 13:06

Suraj Rao

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answered Feb 28 '19 at 12:49

Özgün Seyhan Temel

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Maximum value of maxRequestLength?

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