Alpha Software Mobile Development Tools:   Alpha Anywhere    |   Alpha TransForm subscribe to our YouTube Channel  Follow Us on LinkedIn  Follow Us on Twitter  Follow Us on Facebook



The Alpha Software Forum Participation Guidelines

The Alpha Software Forum is a free forum created for Alpha Software Developer Community to ask for help, exchange ideas, and share solutions. Alpha Software strives to create an environment where all members of the community can feel safe to participate. In order to ensure the Alpha Software Forum is a place where all feel welcome, forum participants are expected to behave as follows:
  • Be professional in your conduct
  • Be kind to others
  • Be constructive when giving feedback
  • Be open to new ideas and suggestions
  • Stay on topic

Be sure all comments and threads you post are respectful. Posts that contain any of the following content will be considered a violation of your agreement as a member of the Alpha Software Forum Community and will be moderated:
  • Spam.
  • Vulgar language.
  • Quotes from private conversations without permission, including pricing and other sales related discussions.
  • Personal attacks, insults, or subtle put-downs.
  • Harassment, bullying, threatening, mocking, shaming, or deriding anyone.
  • Sexist, racist, homophobic, transphobic, ableist, or otherwise discriminatory jokes and language.
  • Sexually explicit or violent material, links, or language.
  • Pirated, hacked, or copyright-infringing material.
  • Encouraging of others to engage in the above behaviors.

If a thread or post is found to contain any of the content outlined above, a moderator may choose to take one of the following actions:
  • Remove the Post or Thread - the content is removed from the forum.
  • Place the User in Moderation - all posts and new threads must be approved by a moderator before they are posted.
  • Temporarily Ban the User - user is banned from forum for a period of time.
  • Permanently Ban the User - user is permanently banned from the forum.

Moderators may also rename posts and threads if they are too generic or do not property reflect the content.

Moderators may move threads if they have been posted in the incorrect forum.

Threads/Posts questioning specific moderator decisions or actions (such as "why was a user banned?") are not allowed and will be removed.

The owners of Alpha Software Corporation (Forum Owner) reserve the right to remove, edit, move, or close any thread for any reason; or ban any forum member without notice, reason, or explanation.

Community members are encouraged to click the "Report Post" icon in the lower left of a given post if they feel the post is in violation of the rules. This will alert the Moderators to take a look.

Alpha Software Corporation may amend the guidelines from time to time and may also vary the procedures it sets out where appropriate in a particular case. Your agreement to comply with the guidelines will be deemed agreement to any changes to it.

Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

When you do post
First, make sure you are posting your question in the correct forum. For example, if you post an issue regarding Desktop applications on the Mobile & Browser Applications board , not only will your question not be seen by the appropriate audience, it may also be removed or relocated.

The more detail you provide about your problem or question, the more likely someone is to understand your request and be able to help. A sample database with a minimum of records (and its support files, zipped together) will make it much easier to diagnose issues with your application. Screen shots of error messages are especially helpful.

When explaining how to reproduce your problem, please be as detailed as possible. Describe every step, click-by-click and keypress-by-keypress. Otherwise when others try to duplicate your problem, they may do something slightly different and end up with different results.

A note about attachments
You may only attach one file to each message. Attachment file size is limited to 2MB. If you need to include several files, you may do so by zipping them into a single archive.

If you forgot to attach your files to your post, please do NOT create a new thread. Instead, reply to your original message and attach the file there.

When attaching screen shots, it is best to attach an image file (.BMP, .JPG, .GIF, .PNG, etc.) or a zip file of several images, as opposed to a Word document containing the screen shots. Because Word documents are prone to viruses, many message board users will not open your Word file, therefore limiting their ability to help you.

Similarly, if you are uploading a zipped archive, you should simply create a .ZIP file and not a self-extracting .EXE as many users will not run your EXE file.
See more
See less

Exception of type 'System.OutOfMemoryException' was thrown

  • Filter
  • Time
  • Show
Clear All
new posts

  • Exception of type 'System.OutOfMemoryException' was thrown


    Using Alpha Anywhere Version 12.2, Build 1839 and Application Server Build 1839-4234.

    Application has been running for a long time (+2 years) without problems (thanks!). Database is 3834.69 MB with the main table having 20,872 rows.

    Recently users experiencing problems such as data not being returned back into grids. Restarting the Application Server seems to fix the problem for a while. Looking at the error logs :-

    Wed Jul 27 05:49:18 2016
    Exception has been thrown by the target of an invocation.
    Exception of type 'System.OutOfMemoryException' was thrown.

    Execution Stack:
    0#1 evaluate_shared_private(
    0#37 OOhttpdServerClientMIME(ptemp,"AppServerMain")

    Is there a fix?


  • #2
    Re: Exception of type 'System.OutOfMemoryException' was thrown

    submit a bug report - I'd say lenny will advise you.
    Insanity: doing the same thing over and over again and expecting different results.
    Albert Einstein, (attributed)
    US (German-born) physicist (1879 - 1955)


    • #3
      Re: Exception of type 'System.OutOfMemoryException' was thrown


      Any changes to the application recently?
      What database are you using? What version?
      What server? Where? How much RAM?

      You're running out of memory. Can you think of any reason why?


      • #4
        Re: Exception of type 'System.OutOfMemoryException' was thrown

        There is almost noting to go on here, so it is difficult to make a suggestion to fix this. The answers to David's questions would be a big help.

        That said, the majority of memory problems are caused by incorrectly handling uploaded files. See

        Lenny Forziati
        Vice President, Internet Products and Technical Services
        Alpha Software Corporation


        • #5
          Re: Exception of type 'System.OutOfMemoryException' was thrown

          Hello David,

          Thanks for your reply. In Answer,

          No changes recently to the application.
          The database is MS SQL Express 2012.
          Server is Windows Server 2008 R2 Standard, hosted.
          Memory is 4GB ofwhich 2.53GB currently in use.

          Regards David.


          • #6
            Re: Exception of type 'System.OutOfMemoryException' was thrown

            More data added recently? Anything the users are doing which returns ALL data? A lot of data?

            Are you returning 20k rows? If so, have you always been returning 20k rows?


            • #7
              Re: Exception of type 'System.OutOfMemoryException' was thrown

              Data being added all the time, perhaps 30 - 100 records per day to the 20,000 plus table.

              The users would only have access to subset of the data, say 1500 records max.


              • #8
                Re: Exception of type 'System.OutOfMemoryException' was thrown

                And nothing has changed recently? No changes to SQL Server... to the Windows Server... to the host environment?


                • #9
                  Re: Exception of type 'System.OutOfMemoryException' was thrown

                  No, nothing changed which makes me thing it's a size problem but used memory is ok, disk space etc. Ok...


                  • #10
                    Re: Exception of type 'System.OutOfMemoryException' was thrown

                    I've not read anything that points to a hardware issue. Can you pinpoint user/users and what they're doing at the time of the exception?


                    • #11
                      Re: Exception of type 'System.OutOfMemoryException' was thrown

                      Users have access to 2 programs, one to add data to two tables and one to enquire on the data.

                      The problem appears to be when they use the enquiry but this will never retrieve the whole 20,000 records as there is a filter on the grid which restricts the data to just the users data.

                      Is there any additional logging that can be enabled on the server to pinpoint the problem?



                      • #12
                        Re: Exception of type 'System.OutOfMemoryException' was thrown

                        Starting to see quite a lot of errors now, have attached yesterdays A5XbasicErrorStackLog file.

                        Is this something to do with downloading the data into Excel?

                        Regarding the "Exception of type 'System.OutOfMemoryException' was thrown." message there is plenty of disc spaces and plenty of system memory available.

                        Any help appreciated.
                        Attached Files


                        • #13
                          Re: Exception of type 'System.OutOfMemoryException' was thrown

                          Did you address the issue with Lenny further or did you ignore his post?
                          Insanity: doing the same thing over and over again and expecting different results.
                          Albert Einstein, (attributed)
                          US (German-born) physicist (1879 - 1955)


                          • #14
                            Re: Exception of type 'System.OutOfMemoryException' was thrown

                            I believe I answered the questions Lenny was interested in yes.

                            I have also read the post regarding ‘500 Error when uploading large files’.

                            Regarding uploading files I have a UX mobile form which is used to upload photographs using the standard Image Upload action JavaScript. The images are saved to image datatypes in the SQL database. The maximum filesize is set to 3mb. The program has been in use for almost 3 years now without problems, only recently have the problems started to occur.



                            • #15
                              Re: Exception of type 'System.OutOfMemoryException' was thrown

                              The log pretty clearly identifies the source of the problem as downloading files, as it logs the error as being generated from a call to Response.SendFile(). How large are the files that you are downloading? The code in the log is loading the file in to memory, then duplicating it in memory in order to convert it to UTF8. This means you need at least twice the size of the file available as unfragmented free memory accessible by the Alpha process.

                              Lenny Forziati
                              Vice President, Internet Products and Technical Services
                              Alpha Software Corporation