diff --git a/readthedocs/projects/tasks.py b/readthedocs/projects/tasks.py
index 48fbc0a720c..b88eb87a65b 100644
--- a/readthedocs/projects/tasks.py
+++ b/readthedocs/projects/tasks.py
@@ -1255,6 +1255,9 @@ def _update_intersphinx_data(version, path, commit):
     :param commit: Commit that updated path
     """
     object_file = os.path.join(path, 'objects.inv')
+    if not os.path.exists(object_file):
+        log.debug('No objects.inv, skipping intersphinx indexing.')
+        return
 
     # These classes are copied from Sphinx
     # https://git.io/fhFbI
@@ -1559,7 +1562,10 @@ def sync_callback(_, version_pk, commit, *args, **kwargs):
 
     The first argument is the result from previous tasks, which we discard.
     """
-    fileify(version_pk, commit=commit)
+    try:
+        fileify(version_pk, commit=commit)
+    except Exception:
+        log.exception('Post sync tasks failed, not stopping build')
 
 
 @app.task()
diff --git a/readthedocs/sphinx_domains/migrations/0001_initial.py b/readthedocs/sphinx_domains/migrations/0001_initial.py
new file mode 100644
index 00000000000..1f205b4c452
--- /dev/null
+++ b/readthedocs/sphinx_domains/migrations/0001_initial.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-02-27 16:23
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django_extensions.db.fields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('builds', '0006_add_config_field'),
+        ('projects', '0040_increase_path_max_length'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SphinxDomain',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', django_extensions.db.fields.CreationDateTimeField(auto_now_add=True, verbose_name='created')),
+                ('modified', django_extensions.db.fields.ModificationDateTimeField(auto_now=True, verbose_name='modified')),
+                ('commit', models.CharField(max_length=255, null=True, verbose_name='Commit')),
+                ('domain', models.CharField(max_length=255, verbose_name='Domain')),
+                ('name', models.CharField(max_length=255, verbose_name='Name')),
+                ('display_name', models.CharField(max_length=255, verbose_name='Display Name')),
+                ('type', models.CharField(max_length=255, verbose_name='Type')),
+                ('doc_name', models.CharField(max_length=255, verbose_name='Doc Name')),
+                ('anchor', models.CharField(max_length=255, verbose_name='Anchor')),
+                ('project', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='sphinx_domains', to='projects.Project')),
+                ('version', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='sphinx_domains', to='builds.Version', verbose_name='Version')),
+            ],
+            options={
+                'ordering': ('-modified', '-created'),
+                'get_latest_by': 'modified',
+                'abstract': False,
+            },
+        ),
+    ]
diff --git a/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py b/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py
new file mode 100644
index 00000000000..d370cf576b7
--- /dev/null
+++ b/readthedocs/sphinx_domains/migrations/0002_increase_max_length.py
@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-02-27 16:50
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sphinx_domains', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='sphinxdomain',
+            name='anchor',
+            field=models.CharField(max_length=4092, verbose_name='Anchor'),
+        ),
+        migrations.AlterField(
+            model_name='sphinxdomain',
+            name='display_name',
+            field=models.CharField(max_length=4092, verbose_name='Display Name'),
+        ),
+        migrations.AlterField(
+            model_name='sphinxdomain',
+            name='doc_name',
+            field=models.CharField(max_length=4092, verbose_name='Doc Name'),
+        ),
+        migrations.AlterField(
+            model_name='sphinxdomain',
+            name='name',
+            field=models.CharField(max_length=4092, verbose_name='Name'),
+        ),
+    ]
diff --git a/readthedocs/sphinx_domains/migrations/__init__.py b/readthedocs/sphinx_domains/migrations/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/readthedocs/sphinx_domains/models.py b/readthedocs/sphinx_domains/models.py
index 5ca9e12213b..59567a09d95 100644
--- a/readthedocs/sphinx_domains/models.py
+++ b/readthedocs/sphinx_domains/models.py
@@ -40,11 +40,11 @@ class SphinxDomain(TimeStampedModel):
     )
     name = models.CharField(
         _('Name'),
-        max_length=255,
+        max_length=4092,
     )
     display_name = models.CharField(
         _('Display Name'),
-        max_length=255,
+        max_length=4092,
     )
     type = models.CharField(
         _('Type'),
@@ -52,11 +52,11 @@ class SphinxDomain(TimeStampedModel):
     )
     doc_name = models.CharField(
         _('Doc Name'),
-        max_length=255,
+        max_length=4092,
     )
     anchor = models.CharField(
         _('Anchor'),
-        max_length=255,
+        max_length=4092,
     )
     objects = RelatedProjectQuerySet.as_manager()