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ClickHouse® is a real-time analytics DBMS
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8021d8d747
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Azat Khuzhin 8021d8d747 Fix data-race in web disk 
TSan report:

    WARNING: ThreadSanitizer: data race (pid=8)
     Write of size 8 at 0x7b54002b0400 by thread T310:
       0 DB::ReadBufferFromWebServer::seek(long, int) build_docker/./src/Disks/IO/ReadBufferFromWebServer.cpp:159:12 (clickhouse+0x18a6a45b) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       1 DB::CachedOnDiskReadBufferFromFile::getImplementationBuffer(DB::FileSegment&) build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:471:47 (clickhouse+0x17f1aace) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       2 DB::CachedOnDiskReadBufferFromFile::nextImplStep() build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:844:33 (clickhouse+0x17f1f5af) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       3 DB::CachedOnDiskReadBufferFromFile::nextImpl() build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:774:16 (clickhouse+0x17f1f33a) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       4 DB::ReadBuffer::next() build_docker/./src/IO/ReadBuffer.h:70:20 (clickhouse+0x17f1307f) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       5 DB::ReadBufferFromRemoteFSGather::readImpl() build_docker/./src/Disks/IO/ReadBufferFromRemoteFSGather.cpp:188:32 (clickhouse+0x17f1307f)
       6 DB::ReadBufferFromRemoteFSGather::nextImpl() build_docker/./src/Disks/IO/ReadBufferFromRemoteFSGather.cpp:160:9 (clickhouse+0x17f12f89) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       7 DB::ReadBuffer::next() build_docker/./src/IO/ReadBuffer.h:70:20 (clickhouse+0x17d695ca) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       8 DB::ThreadPoolRemoteFSReader::execute(DB::IAsynchronousReader::Request) build_docker/./src/Disks/IO/ThreadPoolRemoteFSReader.cpp:95:25 (clickhouse+0x17d695ca)
       9 DB::ThreadPoolRemoteFSReader::submit(DB::IAsynchronousReader::Request)::$_0::operator()() const build_docker/./src/Disks/IO/ThreadPoolRemoteFSReader.cpp:70:80 (clickhouse+0x17d6ab48) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)

     Previous read of size 8 at 0x7b54002b0400 by thread T297:
       0 DB::ReadBufferFromWebServer::getFileOffsetOfBufferEnd() const build_docker/./src/Disks/IO/ReadBufferFromWebServer.h:36:63 (clickhouse+0x18a6ac9d) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       1 DB::CachedOnDiskReadBufferFromFile::getInfoForLog() build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:1223:71 (clickhouse+0x17f24835) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       2 DB::CachedOnDiskReadBufferFromFile::nextImplStep()::$_0::operator()() const build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:799:5 (clickhouse+0x17f2347c) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       3 BasicScopeGuard<DB::CachedOnDiskReadBufferFromFile::nextImplStep()::$_0>::invoke() build_docker/./base/base/../base/scope_guard.h:99:9 (clickhouse+0x17f2347c)
       4 BasicScopeGuard<DB::CachedOnDiskReadBufferFromFile::nextImplStep()::$_0>::~BasicScopeGuard() build_docker/./base/base/../base/scope_guard.h:48:26 (clickhouse+0x17f2347c)
       5 DB::CachedOnDiskReadBufferFromFile::nextImplStep() build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:1071:1 (clickhouse+0x17f22480) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       6 DB::CachedOnDiskReadBufferFromFile::nextImpl() build_docker/./src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp:774:16 (clickhouse+0x17f1f33a) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       7 DB::ReadBuffer::next() build_docker/./src/IO/ReadBuffer.h:70:20 (clickhouse+0x17f1307f) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       8 DB::ReadBufferFromRemoteFSGather::readImpl() build_docker/./src/Disks/IO/ReadBufferFromRemoteFSGather.cpp:188:32 (clickhouse+0x17f1307f)
       9 DB::ReadBufferFromRemoteFSGather::nextImpl() build_docker/./src/Disks/IO/ReadBufferFromRemoteFSGather.cpp:160:9 (clickhouse+0x17f12f89) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       10 DB::ReadBuffer::next() build_docker/./src/IO/ReadBuffer.h:70:20 (clickhouse+0x17d695ca) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)
       11 DB::ThreadPoolRemoteFSReader::execute(DB::IAsynchronousReader::Request) build_docker/./src/Disks/IO/ThreadPoolRemoteFSReader.cpp:95:25 (clickhouse+0x17d695ca)
       12 DB::ThreadPoolRemoteFSReader::submit(DB::IAsynchronousReader::Request)::$_0::operator()() const build_docker/./src/Disks/IO/ThreadPoolRemoteFSReader.cpp:70:80 (clickhouse+0x17d6ab48) (BuildId: cb41845e0edd51bbbf1abf7c1716e74d12491aae)

CI: https://s3.amazonaws.com/clickhouse-test-reports/55261/de503f75dcbc5a4d0e7fbb2e6b08c2106d62848a/integration_tests__tsan__[5_6].html
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
2023-10-10 21:11:57 +02:00
.github Merge remote-tracking branch 'origin/master' into sources-with-subs 2023-10-03 14:42:24 +02:00
base Add desperate instrumentation for debugging deadlock in MultiplexedConnections (#54940) 2023-09-26 13:24:06 -07:00
benchmark Remove old file 2022-07-12 20:28:02 +02:00
cmake Improve linker detection on macOS 2023-09-29 17:14:11 +02:00
contrib Update croaring 2023-10-07 19:44:19 +00:00
docker Merge pull request #55119 from jmaicher/fix/54318/deadlock-ldap-role-update 2023-10-08 00:38:10 +02:00
docs Merge pull request #55283 from bytadaniel/patch-2 2023-10-08 15:25:51 +02:00
packages Beautify packages/build a bit 2023-10-05 15:43:47 +02:00
programs Merge pull request #54931 from yariks5s/s3_style_url 2023-09-29 07:12:01 +03:00
rust Use sccache for rust builds 2023-08-10 22:09:20 +02:00
src Fix data-race in web disk 2023-10-10 21:11:57 +02:00
tests Merge pull request #55276 from azat/SummingMergeTree-Nested-fix 2023-10-08 16:08:25 +02:00
utils Merge pull request #55120 from ClickHouse/fix-functions-in-docs 2023-09-30 00:36:39 +03:00
.clang-format clang-format: Disable namespace indentation and omit {} in if/for/while 2023-09-12 19:20:22 +00:00
.clang-tidy Disable '-clang-analyzer-unix.Malloc' for now 2023-09-27 08:51:17 +00:00
.clangd Enable few slow clang-tidy checks for clangd 2023-05-13 14:08:25 +02:00
.editorconfig
.exrc Fix vim settings (wrong group for autocmd) 2022-12-03 21:23:24 +01:00
.git-blame-ignore-revs Add files with revision to ignore for git blame 2022-09-13 23:05:56 +02:00
.gitattributes Ignore core.autocrlf for tests references 2022-10-05 09:13:27 +02:00
.gitignore Reproducible builds for Rust 2023-07-22 22:46:22 +02:00
.gitmodules SSH keys authentication (#41109) 2023-09-26 17:50:19 +02:00
.pylintrc Cover deprecated bad-* pylint options with black 2022-06-08 14:18:28 +02:00
.snyk Add exclusions from the Snyk scan 2022-10-31 17:47:02 +01:00
.yamllint Increase line-length limit for yamlllint 2023-06-13 19:45:51 +02:00
AUTHORS Update AUTHORS 2021-09-22 11:38:03 +03:00
CHANGELOG.md Extra features in the release 2023-09-29 09:01:54 +02:00
CMakeLists.txt Merge pull request #54917 from kitaisreal/cmake-profile-cpu-option 2023-09-26 16:45:43 +03:00
CODE_OF_CONDUCT.md
CONTRIBUTING.md Mention ClickHouse CLA in CONTRIBUTING.md (#32697) 2021-12-14 03:47:19 +03:00
format_sources
LICENSE Update LICENSE 2023-01-02 00:35:32 +01:00
PreLoad.cmake Revert "Check what will happen if we build ClickHouse with Musl" 2023-09-04 22:01:10 +02:00
README.md Update README.md 2023-10-02 22:36:20 +02:00
SECURITY.md Update version_date.tsv and changelogs after v23.9.1.1854-stable 2023-09-29 07:04:45 +00:00

README.md

ClickHouse — open source distributed column-oriented DBMS

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.

How To Install (Linux, macOS, FreeBSD)

curl https://clickhouse.com/ | sh

Useful Links

Upcoming Events

Also, keep an eye out for upcoming meetups around the world. Somewhere else you want us to be? Please feel free to reach out to tyler clickhouse com.

Recent Recordings

  • Recent Meetup Videos: Meetup Playlist Whenever possible recordings of the ClickHouse Community Meetups are edited and presented as individual talks. Current featuring "Modern SQL in 2023", "Fast, Concurrent, and Consistent Asynchronous INSERTS in ClickHouse", and "Full-Text Indices: Design and Experiments"
  • Recording available: v23.6 Release Webinar All the features of 23.6, one convenient video! Watch it now!
  • All release webinar recordings: YouTube playlist

Interested in joining ClickHouse and making it your full-time job?

We are a globally diverse and distributed team, united behind a common goal of creating industry-leading, real-time analytics. Here, you will have an opportunity to solve some of the most cutting-edge technical challenges and have direct ownership of your work and vision. If you are a contributor by nature, a thinker and a doer - we’ll definitely click!

Check out our current openings here: https://clickhouse.com/company/careers

Cant find what you are looking for, but want to let us know you are interested in joining ClickHouse? Email careers@clickhouse.com!