Could AWS Scheduled Events potentially overlap?












0















I would like to create a Scheduled Events to run a Lambda to execute an api call every 1 minute (cron-line behaviour).



The caveat to this setup is that; the external api is un-reliable / slow and the api call sometimes could last longer than 1 minute.



So, my question here is; given the setup & scenario - would AWS run another Scheduled Event and execute the lambda before the previous executing finished? I.e. overlap?



If it does; is there a way to configure the scheduled event to not "overlap"?



I did some initial research into this and came across this article:
https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html



It looks like you can set concurrency limits at function level? Is this the way to achieve non-overlapping scheduled lambda executions? i.e. set the function's concurrency limit to 1?










share|improve this question



























    0















    I would like to create a Scheduled Events to run a Lambda to execute an api call every 1 minute (cron-line behaviour).



    The caveat to this setup is that; the external api is un-reliable / slow and the api call sometimes could last longer than 1 minute.



    So, my question here is; given the setup & scenario - would AWS run another Scheduled Event and execute the lambda before the previous executing finished? I.e. overlap?



    If it does; is there a way to configure the scheduled event to not "overlap"?



    I did some initial research into this and came across this article:
    https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html



    It looks like you can set concurrency limits at function level? Is this the way to achieve non-overlapping scheduled lambda executions? i.e. set the function's concurrency limit to 1?










    share|improve this question

























      0












      0








      0








      I would like to create a Scheduled Events to run a Lambda to execute an api call every 1 minute (cron-line behaviour).



      The caveat to this setup is that; the external api is un-reliable / slow and the api call sometimes could last longer than 1 minute.



      So, my question here is; given the setup & scenario - would AWS run another Scheduled Event and execute the lambda before the previous executing finished? I.e. overlap?



      If it does; is there a way to configure the scheduled event to not "overlap"?



      I did some initial research into this and came across this article:
      https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html



      It looks like you can set concurrency limits at function level? Is this the way to achieve non-overlapping scheduled lambda executions? i.e. set the function's concurrency limit to 1?










      share|improve this question














      I would like to create a Scheduled Events to run a Lambda to execute an api call every 1 minute (cron-line behaviour).



      The caveat to this setup is that; the external api is un-reliable / slow and the api call sometimes could last longer than 1 minute.



      So, my question here is; given the setup & scenario - would AWS run another Scheduled Event and execute the lambda before the previous executing finished? I.e. overlap?



      If it does; is there a way to configure the scheduled event to not "overlap"?



      I did some initial research into this and came across this article:
      https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html



      It looks like you can set concurrency limits at function level? Is this the way to achieve non-overlapping scheduled lambda executions? i.e. set the function's concurrency limit to 1?







      amazon-web-services aws-lambda amazon-cloudwatch aws-scheduled-events






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 23 '18 at 15:25









      LatheesanLatheesan

      12.2k1766126




      12.2k1766126
























          1 Answer
          1






          active

          oldest

          votes


















          2














          Yes by default it will execute your Lambda function every 1 minute, regardless if the previous invocation has completed or not.



          To enforce no more than one running instance of your Lambda function at a time, set the Concurrency setting of your Lambda function to 1.






          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%2f53449299%2fcould-aws-scheduled-events-potentially-overlap%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














            Yes by default it will execute your Lambda function every 1 minute, regardless if the previous invocation has completed or not.



            To enforce no more than one running instance of your Lambda function at a time, set the Concurrency setting of your Lambda function to 1.






            share|improve this answer




























              2














              Yes by default it will execute your Lambda function every 1 minute, regardless if the previous invocation has completed or not.



              To enforce no more than one running instance of your Lambda function at a time, set the Concurrency setting of your Lambda function to 1.






              share|improve this answer


























                2












                2








                2







                Yes by default it will execute your Lambda function every 1 minute, regardless if the previous invocation has completed or not.



                To enforce no more than one running instance of your Lambda function at a time, set the Concurrency setting of your Lambda function to 1.






                share|improve this answer













                Yes by default it will execute your Lambda function every 1 minute, regardless if the previous invocation has completed or not.



                To enforce no more than one running instance of your Lambda function at a time, set the Concurrency setting of your Lambda function to 1.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 23 '18 at 15:54









                Mark BMark B

                101k16159173




                101k16159173






























                    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.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53449299%2fcould-aws-scheduled-events-potentially-overlap%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







                    Popular posts from this blog

                    404 Error Contact Form 7 ajax form submitting

                    How to know if a Active Directory user can login interactively

                    Refactoring coordinates for Minecraft Pi buildings written in Python