migration is ok again (remains probleme of ram consuming > 4Go for users

web/modules/dev/migrate_booster/migrate_booster.drush.inc

@@ -0,0 +1,30 @@
+<?php
+
+use Drupal\migrate_booster\MigrateBooster;
+
+/**
+ * Implements hook_drush_init().
+ */
+function migrate_booster_drush_init() {
+  // Skip when bootstrap level is low (e.g. drush cr)
+  if (!\Drupal::hasContainer()) {
+    return;
+  }
+  MigrateBooster::bootDrush();
+}
+
+/**
+ * Implements hook_drush_command().
+ */
+function migrate_booster_drush_command() {
+  $items['migrate-booster-reset'] = [
+    'description' => 'Resets migrate booster and implementation cache.',
+    'aliases' => ['mbr'],
+    'drupal dependencies' => ['migrate_booster'],
+  ];
+  return $items;
+}
+
+function drush_migrate_booster_reset() {
+  MigrateBooster::disable();
+}