<div dir="ltr">Hi,<div><br></div><div>I am maintaining a custom module for nginx. We currently rotate our logs and load dynamic data every 5 minutes by using SIGHUP. Unfortunately this is also tears down our keepalive connections which harms our performance (we are handling about 1500 requests per second per server). We have a number of custom log files in addition to the access log and error log which also need to be rotated.</div>
<div><br></div><div>I was hoping that I could use SIGUSR1 to reopen the logs (including the module's custom logs) and notify the module that it should reload the dynamic data without dropping the keepalive connections.</div>
<div><br></div><div>I can see that I could use ngx_conf_open_file() to open the module's custom log files so that nginx will take care of reopening them. However for reloading the dynamic data: I can't see a way to hook the SIGUSR1 in the worker process (which shows up as a NGX_CMD_REOPEN in the channel for the worker process). However if I added a new hook for NGX_CMD_REOPEN then epoll inside the channel handler would probably return EEXIST.</div>
<div><br></div><div>So what is the best way for a module to hook NGX_CMD_REOPEN? Or is there better way of approaching this?</div><div><br></div><div>-Andrew</div><div><br></div><div><br></div></div>
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