html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app https://github.com/simonw/datasette/issues/1396#issuecomment-881686662,https://api.github.com/repos/simonw/datasette/issues/1396,881686662,IC_kwDOBm6k_c40jXiG,9599,2021-07-16T20:02:44Z,2021-07-16T20:02:44Z,OWNER,Confirmed fixed: 0.58.1 was successfully published to Docker Hub in https://github.com/simonw/datasette/runs/3089447346 and the `latest` tag on https://hub.docker.com/r/datasetteproject/datasette/tags was updated.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",944903881, https://github.com/simonw/datasette/issues/1231#issuecomment-881677620,https://api.github.com/repos/simonw/datasette/issues/1231,881677620,IC_kwDOBm6k_c40jVU0,9599,2021-07-16T19:44:12Z,2021-07-16T19:44:12Z,OWNER,"That fixed the race condition in the `datasette-graphql` tests, which is the only place that I've been able to successfully replicate this. I'm going to land this change.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881674857,https://api.github.com/repos/simonw/datasette/issues/1231,881674857,IC_kwDOBm6k_c40jUpp,9599,2021-07-16T19:38:39Z,2021-07-16T19:38:39Z,OWNER,I can't replicate the race condition locally with or without this patch. I'm going to push the commit and then test the CI run from `datasette-graphql` that was failing against it.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881671706,https://api.github.com/repos/simonw/datasette/issues/1231,881671706,IC_kwDOBm6k_c40jT4a,9599,2021-07-16T19:32:05Z,2021-07-16T19:32:05Z,OWNER,The test suite passes with that change.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881668759,https://api.github.com/repos/simonw/datasette/issues/1231,881668759,IC_kwDOBm6k_c40jTKX,9599,2021-07-16T19:27:46Z,2021-07-16T19:27:46Z,OWNER,"Second attempt at this: ```diff diff --git a/datasette/app.py b/datasette/app.py index 5976d8b..5f348cb 100644 --- a/datasette/app.py +++ b/datasette/app.py @@ -224,6 +224,7 @@ class Datasette: self.inspect_data = inspect_data self.immutables = set(immutables or []) self.databases = collections.OrderedDict() + self._refresh_schemas_lock = asyncio.Lock() self.crossdb = crossdb if memory or crossdb or not self.files: self.add_database(Database(self, is_memory=True), name=""_memory"") @@ -332,6 +333,12 @@ class Datasette: self.client = DatasetteClient(self) async def refresh_schemas(self): + if self._refresh_schemas_lock.locked(): + return + async with self._refresh_schemas_lock: + await self._refresh_schemas() + + async def _refresh_schemas(self): internal_db = self.databases[""_internal""] if not self.internal_db_created: await init_internal_db(internal_db) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881665383,https://api.github.com/repos/simonw/datasette/issues/1231,881665383,IC_kwDOBm6k_c40jSVn,9599,2021-07-16T19:21:35Z,2021-07-16T19:21:35Z,OWNER,"https://stackoverflow.com/a/25799871/6083 has a good example of using `asyncio.Lock()`: ```python stuff_lock = asyncio.Lock() async def get_stuff(url): async with stuff_lock: if url in cache: return cache[url] stuff = await aiohttp.request('GET', url) cache[url] = stuff return stuff ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881664408,https://api.github.com/repos/simonw/datasette/issues/1231,881664408,IC_kwDOBm6k_c40jSGY,9599,2021-07-16T19:19:35Z,2021-07-16T19:19:35Z,OWNER,"The only place that calls `refresh_schemas()` is here: https://github.com/simonw/datasette/blob/dd5ee8e66882c94343cd3f71920878c6cfd0da41/datasette/views/base.py#L120-L124 Ideally only one call to `refresh_schemas()` would be running at any one time.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881663968,https://api.github.com/repos/simonw/datasette/issues/1231,881663968,IC_kwDOBm6k_c40jR_g,9599,2021-07-16T19:18:42Z,2021-07-16T19:18:42Z,OWNER,The race condition happens inside this method - initially with the call to `await init_internal_db()`: https://github.com/simonw/datasette/blob/dd5ee8e66882c94343cd3f71920878c6cfd0da41/datasette/app.py#L334-L359,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881204782,https://api.github.com/repos/simonw/datasette/issues/1231,881204782,IC_kwDOBm6k_c40hh4u,9599,2021-07-16T06:14:12Z,2021-07-16T06:14:12Z,OWNER,"Here's the traceback I got from `datasette-graphql` (annoyingly only running the tests in GitHub Actions CI - I've not been able to replicate on my laptop yet): ``` tests/test_utils.py . [100%] =================================== FAILURES =================================== _________________________ test_graphql_examples[path0] _________________________ ds = path = PosixPath('/home/runner/work/datasette-graphql/datasette-graphql/examples/filters.md') @pytest.mark.asyncio @pytest.mark.parametrize( ""path"", (pathlib.Path(__file__).parent.parent / ""examples"").glob(""*.md"") ) async def test_graphql_examples(ds, path): content = path.read_text() query = graphql_re.search(content)[1] try: variables = variables_re.search(content)[1] except TypeError: variables = ""{}"" expected = json.loads(json_re.search(content)[1]) response = await ds.client.post( ""/graphql"", json={ ""query"": query, ""variables"": json.loads(variables), }, ) > assert response.status_code == 200, response.json() E AssertionError: {'data': {'repos_arraycontains': None, 'users_contains': None, 'users_date': None, 'users_endswith': None, ...}, 'erro..."", 'path': ['users_gt']}, {'locations': [{'column': 5, 'line': 34}], 'message': ""'rows'"", 'path': ['users_gte']}, ...]} E assert 500 == 200 E + where 500 = .status_code tests/test_graphql.py:142: AssertionError ----------------------------- Captured stderr call ----------------------------- table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists table databases already exists Traceback (most recent call last): File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/app.py"", line 1171, in route_path response = await view(request, send) File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/views/base.py"", line 151, in view request, **request.scope[""url_route""][""kwargs""] File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/views/base.py"", line 123, in dispatch_request await self.ds.refresh_schemas() File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/app.py"", line 338, in refresh_schemas await init_internal_db(internal_db) File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/utils/internal_db.py"", line 16, in init_internal_db block=True, File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/database.py"", line 102, in execute_write return await self.execute_write_fn(_inner, block=block) File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/database.py"", line 118, in execute_write_fn raise result File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/database.py"", line 139, in _execute_writes result = task.fn(conn) File ""/opt/hostedtoolcache/Python/3.7.11/x64/lib/python3.7/site-packages/datasette/database.py"", line 100, in _inner return conn.execute(sql, params or []) sqlite3.OperationalError: table databases already exists ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1231#issuecomment-881204343,https://api.github.com/repos/simonw/datasette/issues/1231,881204343,IC_kwDOBm6k_c40hhx3,9599,2021-07-16T06:13:11Z,2021-07-16T06:13:11Z,OWNER,This just broke the `datasette-graphql` test suite: https://github.com/simonw/datasette-graphql/issues/77 - I need to figure out a solution here.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",811367257, https://github.com/simonw/datasette/issues/1394#issuecomment-881129149,https://api.github.com/repos/simonw/datasette/issues/1394,881129149,IC_kwDOBm6k_c40hPa9,9599,2021-07-16T02:23:32Z,2021-07-16T02:23:32Z,OWNER,Wrote about this in the annotated release notes for 0.58: https://simonwillison.net/2021/Jul/16/datasette-058/,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",944870799, https://github.com/simonw/datasette/issues/759#issuecomment-881125124,https://api.github.com/repos/simonw/datasette/issues/759,881125124,IC_kwDOBm6k_c40hOcE,9599,2021-07-16T02:11:48Z,2021-07-16T02:11:54Z,OWNER,"I added `""searchmode"": ""raw""` as a supported option for table metadata in #1389 and released that in Datasette 0.58.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",612673948,