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Drio LLC
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March 15, 2018 at 2:39 pm
When migrating the from EE3 to EE4, the automatic migration processes 10 records at a time. For a website that has been using EE3 for years, there are close to 100,000 records resulting in the migration taking nearly a full day since the migration is in 6 phases for each major release of EE4. Is there a way to increase the number of records that the migration processes at a time, greater than 10?
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Tony
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March 15, 2018 at 3:04 pm
Hi there,
Have you previously tried to migrate from EE3 to EE4?
The reason I ask is the default ‘step size’ for migrations should be 50, not 10, if you’ve previously had issues migrating you made have something like this:
define( EE_MIGRATION_STEP_SIZE, 10 );
In your wp-config.php file which tells EE to use a step size of 10, can you check that file and see if you can see the above?
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Drio LLC
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March 15, 2018 at 5:38 pm
Thank you for the prompt response. I have not tried to migrate EE3 to EE4 previously. That definition is not in my wp-config.php. Should I add that definition and set it to 50? Can I set it to 100? Also, does each step of the 6 migration steps process the records all over again, such that I can estimate the time to complete the full migration to be 6 times as long as the first migration step?
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Josh
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March 15, 2018 at 7:35 pm
You can add this to your wp-config.php file before the line where it says to stop editing:
define( EE_MIGRATION_STEP_SIZE, 100 );
and that will make for fewer requests, but depending on your server’s resources it may actually be slower.
With regards to each of the steps: The first step is the slowest because it’s migrating all of the EE3 data to EE4.2 The next step only migrates (4.2 to 4.3) only migrates a small subset of the data related to the changes from version 4.2 to 4.3, and so on for the following steps.
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