# onWorkerError
当worker/task_worker进程发生异常后会在Manager进程内回调此函数。
~~~
void onWorkerError(swoole_server $serv, int $worker_id, int $worker_pid, int $exit_code);
~~~
- $worker_id是异常进程的编号
- $worker_pid是异常进程的ID
- $exit_code退出的状态码，范围是 1 ～255
此函数主要用于报警和监控，一旦发现Worker进程异常退出，那么很有可能是遇到了致命错误或者进程CoreDump。通过记录日志或者发送报警的信息来提示开发者进行相应的处理。
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