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ClickHouse® is a real-time analytics DBMS
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killall requires strict match, i.e. "clickhouse-server" not "clickhouse": 2021-12-03 05:24:56 + env kill -- -21700 2021-12-03 05:24:56 kill: (-21700): No such process 2021-12-03 05:24:56 + killall clickhouse 2021-12-03 05:24:56 clickhouse: no process found 2021-12-03 05:24:56 + echo Servers stopped. 2021-12-03 05:24:56 Servers stopped. 2021-12-03 05:24:56 + analyze_queries $ tail -n1 *-server-log.log ==> left-server-log.log <== 2021.12.03 05:26:59.530647 [ 450 ] {} <Trace> SystemLog (system.asynchronous_metric_log): Flushed system log up to offset 1668052 ==> right-server-log.log <== 2021.12.03 05:27:20.873136 [ 466 ] {} <Trace> SystemLog (system.metric_log): Flushed system log up to offset 9605 ==> setup-server-log.log <== 2021.12.03 02:47:14.844395 [ 96 ] {} <Information> Application: Child process exited normally with code 0. As you can see killall instantly fails with no such process, while this cannot be true since it was there, and also according to logs there were messages after running analyze_queries() from compare.sh This should fix problems like in [1]. [1]: https://clickhouse-test-reports.s3.yandex.net/32080/344298f4037f88b114b8e798bb30036b24be8f16/performance_comparison/report.html#fail1 |
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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 with syntax highlight and navigation.
- Contacts can help to get your questions answered if there are any.