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Hello.
In my current situtation I have Materialized Views above normal tables with MergeTree engine. I have a situation where in normal table are raw data and i need to create percentile from them …
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Имеется свежий образ докера с КХ 21.11.4.14 установленный на Windows Docker WSL 2, и на CentOS.
Потребление ЦПУ в районе 0-2%
Создаем 500 таблиц вида create table test.table00 (f1 String) engine =…
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Upon rebooting an underlying Kubernetes node or re-creating a StateFul set for clickhouse-keeper in k8s, sometimes the pods will come back and be in a CrashLoop state with errors such as:
```
2023…
tman5 updated
11 months ago
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### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar issues.
### Apache SkyWalking Component
Java Agent (apa…
k8ses updated
11 months ago
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Problem description:
After running for a period of time, the memory usage exceeds 90% of the total memory. I am unsure which components are consuming the memory.
ref : https://kb.altinity.com/al…
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im using time and pass it t my query
when using the time charts you have to chose the time column
when using the time column and the time filter the time condition will execute twice !
this is…
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### Description
During the development of indicators, we need to verify whether the written sql gets the correct query results.Our previous approach was to select a repo and compare the data manually…
xgdyp updated
11 months ago
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### Description
This issue starts a discussion about enabling:
- linter: [revive](https://revive.run/) - Fast, configurable, extensible, flexible, and beautiful linter for Go. Drop-in replacement …
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### Component(s)
exporter/clickhouse
## Description
Is there a way to balance the exportation load (client-side load balancing) to multiple Clickhouse DBs while using the exporter/clickhouse.
…
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原文发表于 https://www.v2ex.com/t/908047
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假设有一个进程，其内部有一个全局的锁和两个（或多个）互相不知道对方存在的异步任务正在运行
和一个外部数据库中的某个表，假设表只有一个字段并且是`UNIQUE`约束。数据库每`SESSION`的隔离级别是`READ COMMITTED`
任务的目的是向表中插入一些行
1. 但会先查询表中已有行（此时有`…
n0099 updated
2 months ago