Is there a max size for POST parameter content

Question

I m troubleshooting a Java app where XML is sent between two systems using HTTP POST and Servlet  I suspect that the problem is that the XML is growing way too big  Is it possible that this is the problem  Is there a limit   When it doesn t work  the request getParameter  message   on the consumer side will return null  Both apps are running on TomCat  For instance  an XML document of size 1 73mb will not make it through

User · Answer

There is no defined maximum size for HTTP POST requests. If you notice such a limit then it's an arbitrary limitation of your HTTP Server/Client.

You might get a better answer if you tell how big the XML is.

User · Answer

Yes there is 2MB max and it can be increased by configuration change like this  If your POST body is not in form of multipart file then you might need to add the max-http-post configuration for tomcat in the application yml configuration file  Increase max size of each multipart file to 10MB and total payload size of 100MB max  spring      servlet        multipart max-file-size  10MB       multipart max-request-size  100MB    Setting max size of post requests which might just be the formdata in string format to  10 MB  server      tomcat          max-http-post-size  100000000   max-http-form-post-size  10MB for new version  You might need to add this for the latest sprintboot version - gt  server  tomcat  max-http-form-post-size  10MB

User · Answer

There may be a limit depending on server and or application configuration  For Example  check

User · Answer

As per this the default is 2 MB for your  lt Connector gt       maxPostSize   The maximum size in bytes of the POST which will be handled by the container FORM URL parameter parsing  The limit can be disabled by setting this attribute to a value less than or equal to 0  If not specified  this attribute is set to 2097152  2 megabytes     Edit Tomcat s server xml  In the  lt Connector gt  element  add an attribute maxPostSize and set a larger value  in bytes  to increase the limit   Having said that  if this is the issue  you should have got an exception on the lines of  Post data too big in tomcat  For Further Info

[tomcat] Is there a max size for POST parameter content?

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