Valuestore xml files

Forum > Ask Anything > Valuestore xml files

n/A

postedon August 20, 2013at 9:15 AM

Hi,

I would like to know what in Appway is triggering the deletion of the xml files located in data_home/processdata/valuestores ?
Example :
-rw-r--r-- 1 web web 5915 Mar 1 00:19 e64fe419-b1e2-4967-925f-100baa0e97ea_8.xml

I did a quick action (using version 5.2) which is to use Studio>Console, open a workitem , set it to Completed.
I was expected 1 xml file to be deleted.
However the result was :
-rw-r--r-- 1 root root 5915 Aug 20 09:09 e64fe419-b1e2-4967-925f-100baa0e97ea_8.xml

That means :
1) the file time has changed to today instead of deleting the file.
2) the owner has changed to root which causes a problem.

i tried on a different Appway instance using 5.3.1, the result was the creation of a new file :
-rw-r--r-- 1 web web 418 Aug 20 09:26 d7d6a537-8e89-4304-893a-54507599e28b_65.xml

so not deleted, but created.

Does anyone know what is supposed to delete these files ?

n/A

repliedon August 20, 2013at 12:02 PM

Hi Eric,
the Value Stores are deleted when they have no more Process Instance associated to them, which happens when it is Completed/Deleted/Cancelled. The actual filesystem removal happens when Appway runs the persistence cycle for the data as specified by the corresponding job in the job scheduler. The orphaned Value Stores are also deleted whenever you shutdown the server (orphaned are the ones without corresponding Process Instance).

Just keep in mind that a Value Store is connected 1:1 with a Process Instance. If you set a Workitem in the console as Completed it doesn't mean there is the need to delete a Value Store: a Workitem is only of the tasks of the Process Instance and if you set it to completed, whenever Appway runs the next process update cycle, it will try to move the corresponding Token forward to the next activity.

The issue you have with the root user permissions is probably caused by a wrong startup command used to launch Appway: if you start Appway with the root user, then when the process modifies a file it will be owned by root.

Best,
Mauro

Please sign in to add a reply