ClickHouse® is a real-time analytics DBMS
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Nicolae Vartolomei c2ec23c953
Add FIRST_OR_RANDOM Load Balancing policy
For cross-replication topology setups load_balancing=in_order works best
as nodes handle equal amount of load and usually they hit only 1/n of
data (n = number of replicas), which makes page cache usage more
efficient.

The problem is when one node of the shard goes down. If one replica goes
down, the next one in config will handle twice the usual load while
remaining ones will handle usual traffic.

Closes #4820.
2019-04-15 23:31:40 +01:00
.github Update issue templates 2019-02-08 12:53:43 +03:00
ci Allow build without ssl (#4525) (#4750) 2019-03-22 14:18:24 +03:00
cmake Randomization in lfalloc 2019-04-13 17:45:01 +03:00
contrib Merge pull request #4995 from danlark1/master 2019-04-14 16:00:35 +03:00
dbms Add FIRST_OR_RANDOM Load Balancing policy 2019-04-15 23:31:40 +01:00
debian Remove deprecated PermissionsStartOnly 2019-04-11 10:42:16 -07:00
docker Issue #4947, add check for empty variable 2019-04-10 14:29:04 +02:00
docs Minor docs/website changes (#5011) 2019-04-16 00:00:08 +03:00
libs Merge pull request #4995 from danlark1/master 2019-04-14 16:00:35 +03:00
utils Merge branch 'master' into adaptive_index_granularity 2019-04-15 19:36:36 +03:00
website Minor docs/website changes (#5011) 2019-04-16 00:00:08 +03:00
.clang-format Fix style 2018-12-10 18:50:58 +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 Decreased warning threshold [#MOBMET-3248] 2016-06-07 11:23:15 +03:00
.gitignore Don't update "arrow" on client-side for nothing 2019-02-07 16:47:16 +03:00
.gitlab-ci.yml fix ci 2018-02-06 13:13:44 +03:00
.gitmodules Hyperscan multi regular expressions search 2019-03-23 22:40:16 +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 CLICKHOUSE-2720: progress on website and reference (#886) 2017-06-20 17:19:03 +03:00
CHANGELOG_RU.md Update CHANGELOG_RU.md 2019-03-27 22:12:53 +03:00
CHANGELOG.md Update CHANGELOG.md 2019-04-01 19:29:41 +03:00
CMakeLists.txt Enable LFAlloc for MarkCache and UncompressedCache 2019-04-13 15:07:43 +03:00
CONTRIBUTING.md Temporary fix for #2558 2018-06-26 16:14:32 +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 2019 have started (#3975) 2019-01-02 12:39:20 +03:00
PreLoad.cmake Fix typos 2019-01-17 22:04:21 +03:00
README.md Remove outdated link 2019-04-03 00:30:03 +02:00
release Build ARM fix (#4306) 2019-02-09 01:09:32 +03:00
uncrustify.cfg Better .clang-format and uncrustify.cfg 2018-11-29 15:45:34 +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.
  • Blog contains various ClickHouse-related articles, as well as announces and reports about events.
  • 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.