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Why do you have to stop Magento 1 cron jobs during migration to Magento 2



Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?Is it possible to determine the process id of specific entry in cron_schedule?How to correctly setup the cron jobs for sending of the Order Confirmation Emails?Cron job script is running, but Magento order confirmation emails are not sendingmagento 1.9.1.1 cant run my cron jobsMagento 2.1.3 - Cron Jobs via cPanelCron not runningCron Job Set up in WindowsHow to setup Magento 2.2 cron job?Cron stops running and I have to restart using SSHCron Job status always missed/ not running Magento 2



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1















I am preparing for migration from Magento ver. 1.9 to Magento ver. 2.2.



I am trying to fully understand the process and wondering what are the reasons that you have to stop the cron jobs?



All the tutorials say to stop the cron jobs, however, I can't find any information why you have to do it.










share|improve this question




























    1















    I am preparing for migration from Magento ver. 1.9 to Magento ver. 2.2.



    I am trying to fully understand the process and wondering what are the reasons that you have to stop the cron jobs?



    All the tutorials say to stop the cron jobs, however, I can't find any information why you have to do it.










    share|improve this question
























      1












      1








      1








      I am preparing for migration from Magento ver. 1.9 to Magento ver. 2.2.



      I am trying to fully understand the process and wondering what are the reasons that you have to stop the cron jobs?



      All the tutorials say to stop the cron jobs, however, I can't find any information why you have to do it.










      share|improve this question














      I am preparing for migration from Magento ver. 1.9 to Magento ver. 2.2.



      I am trying to fully understand the process and wondering what are the reasons that you have to stop the cron jobs?



      All the tutorials say to stop the cron jobs, however, I can't find any information why you have to do it.







      magento2 magento-1.9 cron






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Sep 25 '18 at 9:46









      GregGreg

      1,59411035




      1,59411035




















          2 Answers
          2






          active

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          3














          We have to stop crons before proceeding for migration because it can cause issue in our database. we know that cron are used to do particular task on their scheduled time and some crons are used to transfer data from one database table to another table so if we are migrating and cron are still running then it can change data in tables which can cause damage or data missing problems during migration that is why its recommend to stop all crons while migrating.
          you can go through the Magento doc here: Creating a migration plan






          share|improve this answer
































            1














            Cron jobs such as reindexing can and do cause locks in your database. These will prevent the migration from doing its job. Disabling the cron jobs will prevent this from happening.






            share|improve this answer























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              2 Answers
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              2 Answers
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              3














              We have to stop crons before proceeding for migration because it can cause issue in our database. we know that cron are used to do particular task on their scheduled time and some crons are used to transfer data from one database table to another table so if we are migrating and cron are still running then it can change data in tables which can cause damage or data missing problems during migration that is why its recommend to stop all crons while migrating.
              you can go through the Magento doc here: Creating a migration plan






              share|improve this answer





























                3














                We have to stop crons before proceeding for migration because it can cause issue in our database. we know that cron are used to do particular task on their scheduled time and some crons are used to transfer data from one database table to another table so if we are migrating and cron are still running then it can change data in tables which can cause damage or data missing problems during migration that is why its recommend to stop all crons while migrating.
                you can go through the Magento doc here: Creating a migration plan






                share|improve this answer



























                  3












                  3








                  3







                  We have to stop crons before proceeding for migration because it can cause issue in our database. we know that cron are used to do particular task on their scheduled time and some crons are used to transfer data from one database table to another table so if we are migrating and cron are still running then it can change data in tables which can cause damage or data missing problems during migration that is why its recommend to stop all crons while migrating.
                  you can go through the Magento doc here: Creating a migration plan






                  share|improve this answer















                  We have to stop crons before proceeding for migration because it can cause issue in our database. we know that cron are used to do particular task on their scheduled time and some crons are used to transfer data from one database table to another table so if we are migrating and cron are still running then it can change data in tables which can cause damage or data missing problems during migration that is why its recommend to stop all crons while migrating.
                  you can go through the Magento doc here: Creating a migration plan







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited 8 mins ago









                  Teja Bhagavan Kollepara

                  2,99841949




                  2,99841949










                  answered Sep 25 '18 at 13:25









                  Shubham KhandelwalShubham Khandelwal

                  878110




                  878110























                      1














                      Cron jobs such as reindexing can and do cause locks in your database. These will prevent the migration from doing its job. Disabling the cron jobs will prevent this from happening.






                      share|improve this answer



























                        1














                        Cron jobs such as reindexing can and do cause locks in your database. These will prevent the migration from doing its job. Disabling the cron jobs will prevent this from happening.






                        share|improve this answer

























                          1












                          1








                          1







                          Cron jobs such as reindexing can and do cause locks in your database. These will prevent the migration from doing its job. Disabling the cron jobs will prevent this from happening.






                          share|improve this answer













                          Cron jobs such as reindexing can and do cause locks in your database. These will prevent the migration from doing its job. Disabling the cron jobs will prevent this from happening.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Sep 25 '18 at 13:29









                          tecjamtecjam

                          2,76221540




                          2,76221540



























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