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I want to monitor a php process activity because sometime it keeps hanging there for a day although I have set time limit but it seems like its not working. I setup a cron job which runs this PHP application.

I tried to attach process from WHM but its not showing me any relevant info except following string

clock_gettime(CLOCK_MONOTONIC, {146528, 951364448}) = 0

Any clue how to monitor process activity?

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Look into strace - there's a lot of good documentation and even Youtube videos surrounding troubleshooting this behavior.

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