Too many files open - Linux issue

hgranger · **Joined:** Mon Jan 30, 2006 5:28 am **Posts:** 1

Hi,

We have developed a JSF+Spring+Hibernate based portlet application and it is running in Websphere Portal Server(WPS).

While running the portlet in WPS on a linux machine, we are getting the following error.
' Too many open files'....
And after investigating the issue further, we saw that the files that were being kept open were having the file name as <package name>.<POJO name>.data files. These POJOs are being maintained by hibernate. However, this problem does not occur when the portlet is run in WPS on a window machine.

Has anyone come across this problem before? Appreciate any help in this regard !

Thanks in advance...

max · **Posted:** Mon Jan 30, 2006 6:15 am

i dont know of any code inside hibernate that creates/maintain .data files.

LaLiLuna · **Posted:** Mon Jan 30, 2006 6:23 am

May be this comes from the cache.

Do you have a very large cache not fitting in the memory, that allows writing to the disc?

Regards Sebastian

LaLiLuna · **Posted:** Mon Jan 30, 2006 6:26 am

You can of course also increase the number of open file handles in Linux. Standard Linux seems to be quite restrictive so enlarge this.

Google for this topic.

Regards Sebastian

max · **Posted:** Mon Jan 30, 2006 6:48 am

...but overflowing the second level cache to disk very rarely makes sense. Your database will most likely be faster to store and recreate data from disk than any secondlevel cache implementation.