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ClickHouse® is a real-time analytics DBMS
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The problem is that the buffer size validated after marks reading in MergeTreeReaderStream::init(), since it requires to read marks first. And later it is passed to AsynchronousReadBufferFromFileDescriptor, which throws LOGICAL_ERROR because buffer_size < alignment. Fix this my simply disallow such values for max_read_buffer_size (I thougt about modifying createReadBufferFromFileBase(), but it is not used for remote reads -- remote_fs_buffer_size). Fixes: #40669 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.
- 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
- v22.8 Release Webinar Original creator, co-founder, and CTO of ClickHouse Alexey Milovidov will walk us through the highlights of the release, provide live demos, and share vision into what is coming in the roadmap.