View log through journald, why could not see the log about application, I only see the log about biOS and cpu?

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I could not see the log about application

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through journald,

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Dear @gengxiaoquan

Please read journald page.
I think below page may be helpful.
https://www.webosose.org/docs/guides/development/logging/viewing-logs/viewing-logs-journald/#follow-logs

Thanks.

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oh thank you , I have another question to ask, I filter the log about crash through journalctl. I also find rdxd api in LS2 API, Can I use it to generate crash reports？Where are the generated reports？In addition， I see .log file in previous log packs, can I generate the .log file of today?Looking forward to your reply

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You can find a generated log file under the "/var/log/" directory. As far as I found, you can set a logging period in /etc/logrotate.conf or /etc/logrotate.d. But I don't know exactly. :slight_smile:

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thank you for your answer . Do you know the previous logs？Is it generated automatically or need some commands?Is it generated every day?