Does fastcgi application send signal to another process

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I tried to send SIGQUIT to another process to kill it. But I'm failed, the system said that the fastcgi application doesn't have enough priviledge to do this operation. So how should I solve this issue? Is it OK to use pipe to notify process to exit?
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<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><span style="font-family: Arial, 'Liberation Sans', 'DejaVu Sans', sans-serif; line-height: 18px; ">I tried to send SIGQUIT to another process to kill it. But I'm failed, the system said that the fastcgi application doesn't have enough priviledge to do this operation. So how should I solve this issue? Is it OK to use pipe to notify process to exit?</span></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>
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