How to Increase the Maximum HTTP Request Size in Tomcat?

Customizing Maximum HTTP Request Size for Tomcat

Problem:
When using HttpURLConnection to send data to a Tomcat server, what is the maximum size limitation for the request? Can this limit be modified?

Solution:
To modify the maximum allowable request size in Tomcat, you need to adjust two parameters:

1. Server Configuration in server.xml:

In the confserver.xml file, locate the Connector element that defines the HTTP port. Add or update the maxPostSize attribute with the desired maximum request size in bytes.

<code class="xml"><Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443"
                maxPostSize="67589953" /></code>

2. Multipart Configuration in web.xml:

In the webappsmanagerWEB-INFweb.xml file, find the multipart-config element. Configure the max-file-size and max-request-size attributes to specify the maximum file and request sizes allowed.

<code class="xml"><multipart-config>
  <!-- 52MB max -->
  <max-file-size>52428800</max-file-size>
  <max-request-size>52428800</max-request-size>
  <file-size-threshold>0</file-size-threshold>
</multipart-config></code>

Once these changes are made, Tomcat will accept HTTP requests up to the specified maximum size limits.

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