ClickHouse® is a real-time analytics DBMS
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Azat Khuzhin 33f54cdb3c Fix abnormal server termination when http client goes away
In [1] stress tests found:

    2021.02.12 14:20:58.800988 [ 17728 ] {de3e7894-b401-4f7d-8530-90cd5ab06682} <Debug> executeQuery: (from [::1]:45792, using production parser) (comment: /usr/share/clickhouse-test/queries/0_stateless/01520_client_print_query_id.expect) SELECT * FROM numbers(34599)
    2021.02.12 14:20:58.916484 [ 17728 ] {de3e7894-b401-4f7d-8530-90cd5ab06682} <Trace> ContextAccess (default): Access granted: CREATE TEMPORARY TABLE ON *.*
    2021.02.12 14:20:59.071980 [ 17728 ] {de3e7894-b401-4f7d-8530-90cd5ab06682} <Trace> InterpreterSelectQuery: FetchColumns -> Complete
    2021.02.12 14:21:10.708202 [ 17728 ] {de3e7894-b401-4f7d-8530-90cd5ab06682} <Information> executeQuery: Read 34599 rows, 270.30 KiB in 11.876294055 sec., 2913 rows/sec., 22.76 KiB/sec.
    2021.02.12 14:22:10.506261 [ 17728 ] {de3e7894-b401-4f7d-8530-90cd5ab06682} <Debug> DynamicQueryHandler: Done processing query
    2021.02.12 14:22:18.238037 [ 375 ] {} <Fatal> BaseDaemon: (version 21.3.1.5996, build id: 8DBCED54529C989F7AD4D991F51410774D55DE6C) (from thread 17728) Terminate called for uncaught exception:
    Code: 24, e.displayText() = DB::Exception: Cannot write to ostream at offset 262994, Stack trace (when copying this message, always include the lines below):

    0. ./obj-x86_64-linux-gnu/../contrib/libcxx/include/exception:0: Poco::Exception::Exception(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int) @ 0x15c976cb in /usr/bin/clickhouse
    1. ./obj-x86_64-linux-gnu/../src/Common/Exception.cpp:56: DB::Exception::Exception(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int, bool) @ 0x8c9320e in /usr/bin/clickhouse
    2. ./obj-x86_64-linux-gnu/../src/IO/WriteBufferFromOStream.cpp:0: DB::WriteBufferFromOStream::nextImpl() @ 0x8d54da5 in /usr/bin/clickhouse
    3. ./obj-x86_64-linux-gnu/../src/IO/BufferBase.h:39: DB::WriteBufferFromOStream::~WriteBufferFromOStream() @ 0x8d551d7 in /usr/bin/clickhouse
    4. ./obj-x86_64-linux-gnu/../src/IO/WriteBufferFromOStream.cpp:44: DB::Write

    2021.02.12 14:22:18.811071 [ 18134 ] {} <Fatal> BaseDaemon: ########################################
    2021.02.12 14:22:18.878935 [ 18134 ] {} <Fatal> BaseDaemon: (version 21.3.1.5996, build id: 8DBCED54529C989F7AD4D991F51410774D55DE6C) (from thread 17728) (query_id: de3e7894-b401-4f7d-8530-90cd5ab06682) Received signal Aborted (6)
    2021.02.12 14:22:18.943148 [ 18134 ] {} <Fatal> BaseDaemon:
    2021.02.12 14:22:19.007073 [ 18134 ] {} <Fatal> BaseDaemon: Stack trace: 0x7f109932018b 0x7f10992ff859 0x8bb33ae 0x8e301dd 0x17dac8c4 0x17dac7c7 0x8c3fe0b 0x8d552c5 0x8d552ea 0x11a29914 0x11a2a2ca 0x12f96092 0x12f8c65e 0x12f84300 0x15b84110 0x15bc0913 0x15bc103f 0x15d29a12 0x15d27fb0 0x15d267b8 0x8badbad 0x7f10994d5609 0x7f10993fc293
    2021.02.12 14:22:19.255998 [ 18134 ] {} <Fatal> BaseDaemon: 5. raise @ 0x4618b in /usr/lib/x86_64-linux-gnu/libc-2.31.so
    2021.02.12 14:22:19.270203 [ 18134 ] {} <Fatal> BaseDaemon: 6. abort @ 0x25859 in /usr/lib/x86_64-linux-gnu/libc-2.31.so
    2021.02.12 14:22:50.108918 [ 370 ] {} <Fatal> Application: Child process was terminated by signal 6.

  [1]: https://clickhouse-test-reports.s3.yandex.net/19580/6aecb62416ece880cbb8ee3a803e14d841388dde/stress_test_(thread).html#fail1

Verified locally by commenting out->next() call in
WriteBufferFromHTTPServerResponse::nextImpl(), adding a sleep(1) and
canceling HTTP request before it finished, the stacktrace as follow:

    [ 6351 ] {} <Fatal> BaseDaemon: (version 21.3.1.1, build id: 9B40466BF3D2F5AED78A52A995A4A2FD3116787C) (from thread 6677) Terminate called for uncaught exception:
    Code: 24, e.displayText() = DB::Exception: Cannot write to ostream at offset 4, Stack trace (when copying this message, always include the lines below):

    0. /src/ch/clickhouse/.cmake/../src/Common/StackTrace.cpp:298: StackTrace::tryCapture() @ 0x30a52a in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    1. /src/ch/clickhouse/.cmake/../src/Common/StackTrace.cpp:260: StackTrace::StackTrace() @ 0x30a4e5 in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    2. /src/ch/clickhouse/.cmake/../src/Common/Exception.cpp:53: DB::Exception::Exception(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int, bool) @ 0x2a61ae in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    3. /src/ch/clickhouse/.cmake/../src/IO/WriteBufferFromOStream.cpp:22: DB::WriteBufferFromOStream::nextImpl() @ 0x3b468a in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    4. /src/ch/clickhouse/.cmake/../src/IO/WriteBuffer.h:47

    <snip>
    [ 8966 ] {} <Fatal> BaseDaemon: 7. __cxxabiv1::__terminate(void (*)()) @ 0x1784ca in /src/ch/clickhouse/.cmake/contrib/replxx-cmake/libreplxxd.so
    <snip>
    [ 8966 ] {} <Fatal> BaseDaemon: 10. /src/ch/clickhouse/.cmake/../src/IO/WriteBufferFromOStream.cpp:0: DB::WriteBufferFromOStream::~WriteBufferFromOStream() @ 0x3b48c1 in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    [ 8966 ] {} <Fatal> BaseDaemon: 11. /src/ch/clickhouse/.cmake/../src/IO/WriteBufferFromOStream.cpp:44: DB::WriteBufferFromOStream::~WriteBufferFromOStream() @ 0x3b48ec in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    <snip>
    [ 8966 ] {} <Fatal> BaseDaemon: 14. /src/ch/clickhouse/.cmake/../src/IO/WriteBufferFromHTTPServerResponse.cpp:218: DB::WriteBufferFromHTTPServerResponse::~WriteBufferFromHTTPServerResponse() @ 0x3b33cd in /src/ch/clickhouse/.cmake/src/libclickhouse_common_iod.so
    <snip>
    [ 8966 ] {} <Fatal> BaseDaemon: 22. /src/ch/clickhouse/.cmake/../src/Server/HTTPHandler.h:43: DB::HTTPHandler::Output::~Output() @ 0x260421 in /src/ch/clickhouse/.cmake/src/libclickhouse_serverd.so
    [ 8966 ] {} <Fatal> BaseDaemon: 23. /src/ch/clickhouse/.cmake/../src/Server/HTTPHandler.cpp:778: DB::HTTPHandler::handleRequest(Poco::Net::HTTPServerRequest&, Poco::Net::HTTPServerResponse&) @ 0x253fd4 in /src/ch/clickhouse/.cmake/src/libclickhouse_serverd.so
2021-02-13 13:23:03 +03:00
.github See comment from Maxim Akhmedov in https://t.me/joinchat/VP49ANS8VOcAgG75 at 2021-02-10 22:31 MSK 2021-02-10 23:32:11 +03:00
base Merge pull request #19317 from abyss7/dwarf-folly 2021-02-12 02:38:50 +03:00
benchmark Convert to python3 (#15007) 2020-10-02 19:54:07 +03:00
cmake Redundant space 2021-02-10 12:31:01 +03:00
contrib Trying to avoid unlimited wait 2021-02-08 14:01:50 +03:00
debian Auto version update to [21.3.1.1] [54448] 2021-02-01 12:50:56 +03:00
docker Merge pull request #19580 from ClickHouse/in_memory_raft 2021-02-13 10:19:23 +03:00
docs Merge pull request #19894 from spff/master 2021-02-13 03:25:29 +03:00
programs Merge pull request #19580 from ClickHouse/in_memory_raft 2021-02-13 10:19:23 +03:00
src Fix abnormal server termination when http client goes away 2021-02-13 13:23:03 +03:00
tests Merge pull request #19580 from ClickHouse/in_memory_raft 2021-02-13 10:19:23 +03:00
utils Merge branch 'master' into in_memory_raft 2021-02-09 16:06:31 +03:00
website Merge pull request #20125 from qoega/add-benchmark-8cpu-s3 2021-02-07 16:51:26 +03:00
.arcignore Added .arcignore 2020-05-21 09:17:03 +03:00
.clang-format Fixed wrong code around Memory Profiler 2020-03-03 03:24:44 +03:00
.clang-tidy Enable clang-tidy for programs and utils 2020-05-18 04:19:50 +03:00
.editorconfig Changed tabs to spaces in editor configs and in style guide [#CLICKHOUSE-3]. 2017-04-01 11:35:09 +03:00
.gitattributes Better stats on github [#METR-20000]. 2016-05-04 18:03:17 +03:00
.gitignore ANTLR4 Grammar for ClickHouse and new parser (#11298) 2020-12-04 05:15:44 +03:00
.gitmodules Merge branch 'master' into in_memory_raft 2021-02-01 14:30:11 +03:00
.potato.yml Update comments in .potato.yml 2019-10-20 12:50:33 +08:00
.pylintrc Add pylintrc config 2021-01-26 23:35:56 +03:00
.vimrc Changed tabs to spaces in editor configs and in style guide [#CLICKHOUSE-3]. 2017-04-01 11:35:09 +03:00
AUTHORS Update AUTHORS 2020-01-23 17:36:05 +03:00
CHANGELOG.md Update CHANGELOG.md 2021-02-07 18:19:10 +03:00
CMakeLists.txt Merge branch 'master' into kssenii-pg2ch 2021-01-15 17:33:19 +03:00
CODE_OF_CONDUCT.md Add minimal code of conduct #9676 2020-03-16 12:44:28 +03:00
CONTRIBUTING.md Update CONTRIBUTING.md 2020-01-27 21:03:30 +03:00
docker-compose.yml Updated docker-compose.yml #1025 2017-07-26 20:05:32 +03:00
format_sources allow several <graphite> targets (#603) 2017-03-21 23:08:09 +04:00
LICENSE Update LICENSE 2021-01-25 17:00:13 +03:00
PreLoad.cmake Check if XCODE_IDE is true and avoid enforcing ninja in that case 2021-01-06 03:06:03 +04:00
README.md Update README.md 2021-02-13 01:46:13 +03:00
release Convert to python3 (#15007) 2020-10-02 19:54:07 +03:00
SECURITY.md Update SECURITY.md (outdated long time ago) 2021-01-21 16:48:28 +03:00
uncrustify.cfg Better .clang-format and uncrustify.cfg 2018-11-29 15:45:34 +03:00
ya.make Changes required for auto-sync with Arcadia 2020-04-16 15:31:57 +03:00

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.

  • Official website has quick high-level overview of ClickHouse on main page.
  • Tutorial shows how to set up and query 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 to chat with ClickHouse users in real-time.
  • Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
  • Code Browser with syntax highlight and navigation.
  • Contacts can help to get your questions answered if there are any.
  • You can also fill this form to meet Yandex ClickHouse team in person.