Does writing logs from multiple processes to the same log file at the same time cause problems

[liuhao123t]

Does writing logs from multiple processes to the same log file at the same time cause problems

[SergiusTheBest]

Writing to the same file from multiple processes is atomic and cause no issues.

What's problematic is log rotation as it requires inter-process synchronization. Also different processes may have different log rotation parameters. So if you do not use log rotation everything will be fine.

[liuhao123t]

Writing to the same file from multiple processes is atomic and cause no issues.

What's problematic is log rotation as it requires inter-process synchronization. Also different processes may have different log rotation parameters. So if you do not use log rotation everything will be fine.

What if I set the same log rotation parameters for all my processes，one process write fast ，the other one write slow, will they rotate at the same time?

[SergiusTheBest]

@liuhao123t No, it won't work as there is no inter-process synchronization. So they may start rotating at the same time, or one after another.

[Chris55]

Writing to the same file from multiple processes is atomic and cause no issues.

What's problematic is log rotation as it requires inter-process synchronization. Also different processes may have different log rotation parameters. So if you do not use log rotation everything will be fine.

How to disable log rotation?

[SergiusTheBest]

How to disable log rotation?

It's disabled by default. Unless you set log files number and log file max size.