Xuewei Wang comments

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                                            Xuewei Wang

When I upgrade to 22.7.1.2484 from 21.8.14.5, after a few minutes all servers crash.The part of log are as follows.

> Please share the relevant part of server log as text (not as screenshot) > > ``` > zgrep -Fa "Fatal" /var/log/clickhouse-server/clickhouse-server* > ``` /var/lib/clickhouse/clickhouse-server-log/clickhouse-server.err.log:2022.08.01 21:22:41.862307 [ 5101 ] {}...

xorm mock CURD

mock test for xorm curd

DB::Exception: defau lt: Authentication failed: password is incorrect or there is no user with such name. Stack trace:DB::Exception: defau lt: Authentication failed: password is incorrect or there is no user with such name. Stack trace:

Try to use dns cache, the k8s dns have some problem.

DB::Exception: defau lt: Authentication failed: password is incorrect or there is no user with such name. Stack trace:DB::Exception: defau lt: Authentication failed: password is incorrect or there is no user with such name. Stack trace:

> > Try to use dns cache, the k8s dns have some problem. > > Is this caused by kubernetes dns resolution? yes,you can try

take long time to start next pod, why? about 9min

no，it just take long time to start a pending pod? pending pod to running is not slow

take long time to start next pod, why? about 9min

Is there a performance issue about operator, when i create a lot pods

take long time to start next pod, why? about 9min

the logs show take a lot time to spent on the code, as fallows: is it nessesary? if curStatefulSet == nil { err := w.schemer.HostCreateTables(host) if err == nil {...

take long time to start next pod, why? about 9min

@alex-zaitsev

take long time to start next pod, why? about 9min

![image](https://user-images.githubusercontent.com/45587738/88510182-18f7b900-d015-11ea-9373-cf352877a04b.png)

take long time to start next pod, why? about 9min

@alex-zaitsev @Slach when i create cluster, i think no need to migrat schema objects to host, has error