分布式workerman，worker進程僵死
在分布式 Gateway和Worker分離的情況下，Worker忽然間爆發(fā)了大量錯誤：
GatewayConnection Error : 1 ,connect 172.16.17.4:4000 fail after 7.2382 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4004 fail after 7.2382 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4003 fail after 7.2381 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4007 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4010 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4006 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4017 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4013 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4020 fail after 7.2379 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4016 fail after 7.2378 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4025 fail after 7.2376 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4023 fail after 7.2376 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4026 fail after 7.2376 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4021 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4018 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4028 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4019 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4024 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.4:4031 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4003 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4001 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4000 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4006 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4004 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4011 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4010 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4012 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4009 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4016 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4008 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4007 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4015 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4005 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4014 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4019 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4022 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4017 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4021 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4020 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4013 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4018 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4029 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4028 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4026 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4027 fail after 7.2373 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4023 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4025 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4024 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4031 fail after 7.2374 seconds
GatewayConnection Error : 1 ,connect 172.16.17.5:4030 fail after 7.2374 seconds
php start.php stop停止worker后，進程中仍然有大量Worker僵尸進程沒有被結束，仍然在不停的訪問Gateway并提示本錯誤。
kill掉所有Worker僵尸進程后，重啟回復正常。
請問發(fā)生這種情況會有哪些可能性？
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