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ClickHouse® is a real-time analytics DBMS
769bfbe71f
Previously it was the pid of the subshell 40 while it should be the pid
of the clickhouse-server 39:
Here we see that the server pid is 39:
2021-09-28 11:02:34 + pgrep -f clickhouse-server
2021-09-28 11:02:34 39
Here we see that the 40 is the pid of subshell:
2021-09-28 11:02:45 ch/docker/test/fuzzer/run-fuzzer.sh: line 90: 39 Killed clickhouse-server --config-file db/config.xml -- --path db 2>&1
2021-09-28 11:02:45 40 Done | tail -100000 > server.log
And here we see that server_pid variable is 40:
2021-09-28 11:02:45 + server_exit_code=0
2021-09-28 11:02:45 + wait 40
v2: wait in background to call wait in foreground and ensure that the
process is alive, since w/o job control this is the only way to obtain
the exit code
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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 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.