Hi Tony,
So, I'm running into the above error when dealing with a large-ish (11MB) string.
The scenario is this ...
order_getjson()
This is a function that accepts a list of order IDs and returns a string of order JSON objects. Right now, to build this string, I first dimension an array with elements to hold each individual order's JSON. Then I loop through the order ids and either read a pre-built json file cached on disk or, if that doesn't exist, call a build function to create/cache the JSON string for that order with its items, etc. and return the result - which I then insert into an array slot.
At the end of order_getjson, I use arrayItemize() with a ',' delimiter to return one large string to the original calling function. I also explicitly drop() the array and temp string variable.
However, after returning from order_getjson - as soon as I attempt to insert this string into another string to be output by Webbatch I get the VM Alloc error.
This seems to be specifically related to the use of an ArrayItemize because ...
INTERESTING THING #1:
This whole operation works if - instead of using an array to hold the JSON strings in order_getjson, I instead use FileWrite to build up a temp file. Then I return the string using FileGet(). No errors. (This is the method I was previously using - I thought an array might be faster than writing to disk).
INTERESTING THING #2:
While I was writing this, I've also found that this operation works if I use the array but, instead of returning the results of arrayItemize(), I first write them to a temp file and then re-read them with FileGet() and return that data instead.
So I'm not broken - I can make things work. But, I found the phenomena odd and thought I would mention it in case you can give me any insight or it sounds like something isn't working right.
Oh, this is on WebBatch 2015A.
Regards,
Micheal
You are attempting to commit more string memory than is reserved. In short, you are running out of string space when you use ArrayItemize. The function uses a lot of string memory to do its job.