Mongo连接问题

[Slairmy]

想问下通过边车进程的连接有连接池的概念吗，我在循环写入(1w左右)mongo集合的时候回碰到这种错误，好像大概率是因为连接数的问题导致的。

RemoteGoTask::__call failed, because error 'error while executing mongo command: connection(xxx-ip) incomplete read of message header: EOF' on 'Hyperf\GoTask\Relay\CoroutineSocketRelay'

Spiral\Goridge\Exceptions\ServiceException : error 'error while executing mongo command: server selection error: server selection timeout, current topology: { Type: ReplicaSetNoPrimary, Servers: [{ Addr: xxx, Type: Unknown, State: Connected, Average RTT: 0, Last error: connection() : dial tcp xxx: connect: connection refused }, { Addr: xxx, Type: RSSecondary, State: Connected, Average RTT: 14362421 }, ] }' on 'Hyperf\GoTask\Relay\CoroutineSocketRelay'

[medeirosinacio]

related: #2