Server log file default value not work.

[mikechengwei]

What did you do?

Test default server log file. Ref https://docs.pingcap.com/zh/tidb/stable/deploy-ticdc.

 log-file：TiCDC 进程运行日志的地址，默认为 cdc.log。

What did you expect to see?

output log to cdc.log.

What did you see instead?

None

Versions of the cluster

Upstream TiDB cluster version (execute SELECT tidb_version(); in a MySQL client):

(paste TiDB cluster version here)

Upstream TiKV version (execute tikv-server --version):

(paste TiKV version here)

TiCDC version (execute cdc version):

v5.4.0

[overvenus]

What's your command line and configuration file to start TiCDC?

[mikechengwei]

For example , i am not specify log-file argument :

/cdc server --addr=0.0.0.0:8301 --advertise-addr=basic-ticdc-2.basic-ticdc-peer.default.svc:8301 --gc-ttl=86400

[mikechengwei]

BTW, i use tidb operator deploy ticdc , operator can't set the log-file empty,because ticdc not set the default value .Ref: https://github.com/pingcap/tidb-operator/pull/4473

[overvenus]

BTW, i use tidb operator deploy ticdc , operator can't set the log-file empty,because ticdc not set the default value .Ref: pingcap/tidb-operator#4473

Without --log-file, TiCDC should output logs to the std out. I think the documentation needs update.

[mikechengwei]

BTW, i use tidb operator deploy ticdc , operator can't set the log-file empty,because ticdc not set the default value .Ref: pingcap/tidb-operator#4473

Without --log-file, TiCDC should output logs to the std out. I think the documentation needs update.

If user not specify log-file using tool ,the log will output to cdc.log. I think ticdc should help tiup and tidb operator unify logfile default value. Instead, tiup and operator each have a log file default value standards, which affects the user experience. @overvenus