Comment 3 for bug 1665143

Frmo the logs above:

2017-02-15 20:22:04 maasserver: [error] ################################ Exception: value too long for type character varying(100)
 ################################
2017-02-15 20:22:04 maasserver: [error] Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
psycopg2.DataError: value too long for type character varying(100)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/django/core/handlers/base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/python3/dist-packages/maasserver/utils/views.py", line 177, in view_atomic_with_post_commit_savepoint
    return view_atomic(*args, **kwargs)
  File "/usr/lib/python3.5/contextlib.py", line 30, in inner
    return func(*args, **kwds)
  File "/usr/lib/python3/dist-packages/maasserver/api/support.py", line 59, in __call__
    response = upcall(request, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/django/views/decorators/vary.py", line 21, in inner_func
    response = func(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/piston3/resource.py", line 190, in __call__
    result = self.error_handler(e, request, meth, em_format)
  File "/usr/lib/python3/dist-packages/piston3/resource.py", line 188, in __call__
    result = meth(request, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/maasserver/api/support.py", line 298, in dispatch
    return function(self, request, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/metadataserver/api.py", line 704, in signal
    target_status = process(node, request, status)
  File "/usr/lib/python3/dist-packages/metadataserver/api.py", line 567, in _process_commissioning
    node, node.current_commissioning_script_set, request, status)
  File "/usr/lib/python3/dist-packages/metadataserver/api.py", line 532, in _store_results
    script_result.store_result(**args)
  File "/usr/lib/python3/dist-packages/metadataserver/models/scriptresult.py", line 144, in store_result
    exit_status=self.exit_status)
  File "/usr/lib/python3/dist-packages/metadataserver/models/commissioningscript.py", line 348, in update_node_physical_block_devices
    serial=serial,
  File "/usr/lib/python3/dist-packages/django/db/models/manager.py", line 127, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/django/db/models/query.py", line 348, in create
    obj.save(force_insert=True, using=self.db)
  File "/usr/lib/python3/dist-packages/maasserver/models/cleansave.py", line 29, in save
    return super(CleanSave, self).save(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/maasserver/models/timestampedmodel.py", line 72, in save
    return super(TimestampedModel, self).save(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 734, in save
    force_update=force_update, update_fields=update_fields)
  File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 761, in save_base
    self._save_parents(cls, using, update_fields)
  File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 786, in _save_parents
    self._save_table(cls=parent, using=using, update_fields=update_fields)
  File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 846, in _save_table
    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
  File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 885, in _do_insert
    using=using, raw=raw)
  File "/usr/lib/python3/dist-packages/django/db/models/manager.py", line 127, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/django/db/models/query.py", line 920, in _insert
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/usr/lib/python3/dist-packages/django/db/models/sql/compiler.py", line 974, in execute_sql
    cursor.execute(sql, params)
  File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/lib/python3/dist-packages/django/db/utils.py", line 98, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/usr/lib/python3/dist-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
django.db.utils.DataError: value too long for type character varying(100)