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ClickHouse® is a real-time analytics DBMS
e1ad5cee7e
pytest play games with logging output [1]. [1]: https://github.com/pytest-dev/pytest/issues/5502 But this does not actually affect ClickHouse tests, the only reason is that the kazoo client is not stopped correctly without calling kazoo.client.KazooClient.stop(), and that's why you can see the following messages: <details> test_storage_rabbitmq/test.py::test_rabbitmq_big_message --- Logging error --- Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 179, in _socket_error_handling yield File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 659, in _connect self._socket = self.handler.create_connection( File "/usr/local/lib/python3.8/dist-packages/kazoo/handlers/threading.py", line 178, in create_connection return utils.create_tcp_connection(socket, *args, **kwargs) File "/usr/local/lib/python3.8/dist-packages/kazoo/handlers/utils.py", line 265, in create_tcp_connection sock = module.create_connection(address, timeout_at) File "/usr/lib/python3.8/socket.py", line 808, in create_connection raise err File "/usr/lib/python3.8/socket.py", line 796, in create_connection sock.connect(sa) socket.timeout: timed out During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 579, in _connect_attempt read_timeout, connect_timeout = self._connect(host, hostip, port) File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 659, in _connect self._socket = self.handler.create_connection( File "/usr/lib/python3.8/contextlib.py", line 131, in __exit__ self.gen.throw(type, value, traceback) File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 182, in _socket_error_handling raise ConnectionDropped("socket connection error: %s" % (err,)) kazoo.exceptions.ConnectionDropped: socket connection error: None During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python3.8/logging/__init__.py", line 1088, in emit stream.write(msg + self.terminator) ValueError: I/O operation on closed file. Call stack: File "/usr/lib/python3.8/threading.py", line 890, in _bootstrap self._bootstrap_inner() File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner self.run() File "/usr/lib/python3.8/threading.py", line 870, in run self._target(*self._args, **self._kwargs) File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 512, in zk_loop if retry(self._connect_loop, retry) is STOP_CONNECTING: File "/usr/local/lib/python3.8/dist-packages/kazoo/retry.py", line 126, in __call__ return func(*args, **kwargs) File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 552, in _connect_loop status = self._connect_attempt(host, hostip, port, retry) File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 622, in _connect_attempt self.logger.warning('Connection dropped: %s', e) Message: 'Connection dropped: %s' Arguments: (ConnectionDropped('socket connection error: None'),) </details> Which eventually leads to incorrectly parsed report. This patch is an addition to the `logging.raiseExceptions=False` - #44618 Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com> |
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ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.
Useful Links
- Official website has a quick high-level overview of ClickHouse on the main page.
- ClickHouse Cloud ClickHouse as a service, built by the creators and maintainers.
- Tutorial shows how to set up and query a small ClickHouse cluster.
- Documentation provides more in-depth information.
- YouTube channel has a lot of content about ClickHouse in video format.
- Slack and Telegram allow chatting with ClickHouse users in real-time.
- Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
- Code Browser (Woboq) with syntax highlight and navigation.
- Code Browser (github.dev) with syntax highlight, powered by github.dev.
- Contacts can help to get your questions answered if there are any.
Upcoming events
- Recording available: v22.12 Release Webinar 22.12 is the ClickHouse Christmas release. There are plenty of gifts (a new JOIN algorithm among them) and we adopted something from MongoDB. Original creator, co-founder, and CTO of ClickHouse Alexey Milovidov will walk us through the highlights of the release.
- ClickHouse Meetup at the CHEQ office in Tel Aviv - Jan 16 - We are very excited to be holding our next in-person ClickHouse meetup at the CHEQ office in Tel Aviv! Hear from CHEQ, ServiceNow and Contentsquare, as well as a deep dive presentation from ClickHouse CTO Alexey Milovidov. Join us for a fun evening of talks, food and discussion!
- ClickHouse Meetup at Microsoft Office in Seattle - Jan 18 - Keep an eye on this space as we will be announcing speakers soon!