Problem with php script that try to read file while Powerhell writes to it












5














I have a big problem with a apache server running PHP.
Often some PHP scripts is trying to get data from a CSV file while a Powershell script writes to it.
Is there a common way to prevent this?
I have tied to write to the file at a specific time and then read from the file while no writing is done. But even when I set a read error in the PHP to 20 sec. it often try to read an write at the same time.... HELP!






php apache powershell







share|improve this question






















  • Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
    – JPBlanc
    Nov 11 at 16:57
















5














I have a big problem with a apache server running PHP.
Often some PHP scripts is trying to get data from a CSV file while a Powershell script writes to it.
Is there a common way to prevent this?
I have tied to write to the file at a specific time and then read from the file while no writing is done. But even when I set a read error in the PHP to 20 sec. it often try to read an write at the same time.... HELP!






php apache powershell







share|improve this question






















  • Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
    – JPBlanc
    Nov 11 at 16:57














5












5








5







I have a big problem with a apache server running PHP.
Often some PHP scripts is trying to get data from a CSV file while a Powershell script writes to it.
Is there a common way to prevent this?
I have tied to write to the file at a specific time and then read from the file while no writing is done. But even when I set a read error in the PHP to 20 sec. it often try to read an write at the same time.... HELP!






php apache powershell







share|improve this question













I have a big problem with a apache server running PHP.
Often some PHP scripts is trying to get data from a CSV file while a Powershell script writes to it.
Is there a common way to prevent this?
I have tied to write to the file at a specific time and then read from the file while no writing is done. But even when I set a read error in the PHP to 20 sec. it often try to read an write at the same time.... HELP!






php apache powershell




php apache powershell






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 11 at 13:01









RelaxDK

383




383












  • Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
    – JPBlanc
    Nov 11 at 16:57


















  • Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
    – JPBlanc
    Nov 11 at 16:57
















Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
– JPBlanc
Nov 11 at 16:57




Can you give the code that read the file in PHP, Do you use fopen() and fRead() or just readFile()? The first option gives you more options and certainly a way to prevent lock.
– JPBlanc
Nov 11 at 16:57












1 Answer
1






active

oldest

votes


















2














I cant add a simple comment because I dont have reputation points... Don't understand that logic but whatever. The most common way of resolving this is using a lock file to signal to another process that the file is in use, check out this little guide:
locking-files-with-flock






share|improve this answer





















    Your Answer






    StackExchange.ifUsing("editor", function () {
    StackExchange.using("externalEditor", function () {
    StackExchange.using("snippets", function () {
    StackExchange.snippets.init();
    });
    });
    }, "code-snippets");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "1"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53248991%2fproblem-with-php-script-that-try-to-read-file-while-powerhell-writes-to-it%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    I cant add a simple comment because I dont have reputation points... Don't understand that logic but whatever. The most common way of resolving this is using a lock file to signal to another process that the file is in use, check out this little guide:
    locking-files-with-flock






    share|improve this answer


























      2














      I cant add a simple comment because I dont have reputation points... Don't understand that logic but whatever. The most common way of resolving this is using a lock file to signal to another process that the file is in use, check out this little guide:
      locking-files-with-flock






      share|improve this answer
























        2












        2








        2






        I cant add a simple comment because I dont have reputation points... Don't understand that logic but whatever. The most common way of resolving this is using a lock file to signal to another process that the file is in use, check out this little guide:
        locking-files-with-flock






        share|improve this answer












        I cant add a simple comment because I dont have reputation points... Don't understand that logic but whatever. The most common way of resolving this is using a lock file to signal to another process that the file is in use, check out this little guide:
        locking-files-with-flock







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 11 at 13:48









        PinkFluff

        488




        488






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Stack Overflow!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid …



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • Please be sure to answer the question. Provide details and share your research!

            But avoid …



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53248991%2fproblem-with-php-script-that-try-to-read-file-while-powerhell-writes-to-it%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            -

            這個網誌中的熱門文章

            Xamarin.form Move up view when keyboard appear

            圖片
            .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I'm trying to build a Chat app UI, the idea of the Layout was pretty simple: When the input bar is focused, keyboard show up and "push" up the chat bar, as it's a grid, the ListView will resize to fit the screen: I update the input bar's margin to "push" it up: NSValue result = (NSValue)args.Notification.UserInfo.ObjectForKey(new NSString(UIKeyboard.FrameEndUserInfoKey)); CGSize keyboardSize = result.RectangleFValue.Size; if (Element != null){ Element.Margin = new Thickness(0, 0, 0,keyboardSize.Height); //push the entry up to keyboard height when keyboard is activated } And this is ...
            閱讀完整內容

            Post-Redirect-Get with Spring WebFlux and Thymeleaf

            圖片
            .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 2 Can someone explain to me how to implement the post-redirect-get pattern in Spring WebFlux and Thymeleaf? What subscribes on the database save method? @GetMapping("/register") public String showRegisterForm(Model model) { model.addAttribute("user", new User()); return "register"; } @PostMapping public String processRegisterForm(@Valid User user, BindingResult bindingResult) { if (bindingResult.hasErrors()) { return "register"; } else { userRepository.save(user); //what subscribes on this? //how to redirect on e.g. "/login"? ...
            閱讀完整內容

            Anylogic : not able to use stopDelay()

            圖片
            -2 I am building a railway station model. I want a train to depart when I click a button. I want to call stopDelay() for that but I am not sure how to do that and from which place. anylogic share | improve this question asked Nov 23 '18 at 10:12 Anupam Singh Anupam Singh 1 Hi Anupam, welcome to SOF. Please check how to ask good questions, see link below. Your question is...
            閱讀完整內容