CODEWITHSUNDEEP
file-uploadconfigurationliferay
knb
knb

Reputation: 9295

what do these liferay config params actually mean?

In my portal-ext properties file, I found these parameters. I don't remember why I put them into the config-file, I think I simply copied them from some other web page where someone said it'll help.

There are comments explaining what the parameters do, but I still don't understand the underlying issues.

How can uploaded data be serialized extraneously?

Why are files > 10 MB be considered excessively large, and why do they have to be cached? 

#Set the threshold size to prevent extraneous serialization of uploaded data.

com.liferay.portal.upload.LiferayFileItem.threshold.size=262144

#Set the threshold size to prevent out of memory exceptions caused by caching excessively 
#large uploaded data. Default is 1024 * 1024 * 10.

com.liferay.portal.upload.LiferayInputStream.threshold.size=10485760

Upvotes: 1

Views: 2242

Answers (2)

Sharana
Sharana

Reputation: 749

These properties will be invoked when you have an external file upload functionality in your portal.

When you upload a larger file, it needs to be written to a temporary file on the disk.

Since the part of the file upload process is to hold the file in memory before writing it to the disk/database, Larger files must be avoided and it will prevent out of memory exceptions.

If you want to know more details on this,

Please go through this link.

Liferay's Document Library uses other properties to restrict the file size. Such as

 dl.file.max.size=3072000

Upvotes: 2

František Hartman
František Hartman

Reputation: 15086

These properties are connected with maximum file size for upload (e.g. for document library). However these seem to be the default values.

Upvotes: 1

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