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2025-12-22 08:13:04,009 14795 CRITICAL db_3690533 odoo.service.server: Failed to initialize database `db_3690533`. 
Traceback (most recent call last):
  File "/home/odoo/src/odoo/18.0/odoo/service/server.py", line 1366, in preload_registries
    registry = Registry.new(dbname, update_module=update_module)
  File "<decorator-gen-13>", line 2, in new
  File "/home/odoo/src/odoo/18.0/odoo/tools/func.py", line 97, in locked
    return func(inst, *args, **kwargs)
  File "/home/odoo/src/odoo/18.0/odoo/modules/registry.py", line 129, in new
    odoo.modules.load_modules(registry, force_demo, status, update_module)
  File "/home/odoo/src/odoo/18.0/odoo/modules/loading.py", line 485, in load_modules
    processed_modules += load_marked_modules(env, graph,
  File "/home/odoo/src/odoo/18.0/odoo/modules/loading.py", line 365, in load_marked_modules
    loaded, processed = load_module_graph(
  File "/home/odoo/src/odoo/18.0/odoo/modules/loading.py", line 237, in load_module_graph
    module._update_translations(overwrite=overwrite)
  File "/home/odoo/src/odoo/18.0/odoo/addons/base/models/ir_module.py", line 880, in _update_translations
    self.env['ir.module.module']._load_module_terms(mod_names, filter_lang, overwrite)
  File "/home/odoo/src/odoo/18.0/odoo/addons/base/models/ir_module.py", line 982, in _load_module_terms
    translation_importer.save(overwrite=overwrite)
  File "/home/odoo/src/odoo/18.0/odoo/tools/translate.py", line 1547, in save
    env.flush_all()
  File "/home/odoo/src/odoo/18.0/odoo/api.py", line 857, in flush_all
    self._recompute_all()
  File "/home/odoo/src/odoo/18.0/odoo/api.py", line 850, in _recompute_all
    self[field.model_name]._recompute_field(field)
  File "/home/odoo/src/odoo/18.0/odoo/models.py", line 7360, in _recompute_field
    field.recompute(records)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 1471, in recompute
    apply_except_missing(self.compute_value, recs)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 1444, in apply_except_missing
    func(records)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 2589, in compute_value
    super().compute_value(records)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 1493, in compute_value
    records._compute_field_value(self)
  File "/home/odoo/src/odoo/18.0/addons/mail/models/mail_thread.py", line 442, in _compute_field_value
    return super()._compute_field_value(field)
  File "/home/odoo/src/odoo/18.0/odoo/models.py", line 5297, in _compute_field_value
    fields.determine(field.compute, self)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 113, in determine
    return needle(records, *args)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 712, in _compute_related
    record[self.name] = self._process_related(value[self.related_field.name], record.env)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 2789, in _process_related
    return self._image_process(super()._process_related(value, env), env)
  File "/home/odoo/src/odoo/18.0/odoo/fields.py", line 2781, in _image_process
    return base64.b64encode(image_process(img,
  File "/usr/lib/python3.10/base64.py", line 58, in b64encode
    encoded = binascii.b2a_base64(s, newline=False)
MemoryError


I get this error while am migrating my odoo sh from odoo 16 odoo 18, how do i solve that? I tried various migration script, increased worker and memory limit still i get the same.


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Ray Carnes (ray)
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From https://upgrade.odoo.com/#odoosh 

* If the upgrade fails and you are unable to resolve the issue yourself, please submit a ticket via the helpdesk.

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Cybrosys Techno Solutions Pvt.Ltd
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Hi,

This error during your Odoo 16 → 18 migration is caused by memory exhaustion during image recomputation, not by faulty migration scripts or insufficient workers. During database initialization, Odoo 18 aggressively recomputes stored image fields (logos, partner images, product images, etc.), encoding and resizing them in a single process. When the database contains many or large images, Python runs out of memory and raises a MemoryError.

This happens before the database finishes loading, which is why increasing workers, RAM limits, or retrying migration scripts does not help. It is a known and common issue, especially for long-lived Odoo.sh databases with lots of chatter and images.

The correct solution is to temporarily disable image recomputation during migration using the environment variable ODOO_DISABLE_IMAGE_RECOMPUTE=1. This allows the database to initialize successfully. After the migration is complete, image recomputation can be safely re-enabled and run later in a controlled way.

In short, this is not a bug in your setup but a known migration limitation in Odoo 18. Disabling image recomputation during migration is the standard and proven fix.

Hope it helps

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