请假一下各位,发生这个异常的原因可能是网络原因导致的吗? - V2EX
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rrzwxq
V2EX    Java

请假一下各位,发生这个异常的原因可能是网络原因导致的吗?

  •  
  •   rrzwxq Mar 5, 2021 2607 views
    This topic created in 1878 days ago, the information mentioned may be changed or developed.

    我们开发了一个功能,需要调用美国那边一个系统的接口,偶尔会发生下面这个错误,考虑美国和中国的网络问题,请问这个异常是不是有可能是网络情况不好,丢包,或者网速较慢导致的?

    javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:994) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379) at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:396) at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:355) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:373) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:394) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)

    8 replies    2021-03-06 10:12:55 +08:00
    knightdf
        1
    knightdf  
       Mar 5, 2021
    妥妥的网络问题
    rrzwxq
        3
    rrzwxq  
    OP
       Mar 5, 2021
    @wakzz 这个我也查到过,如果是证书问题的话,应该会一直报错才对,不会偶尔发生吧?
    rrzwxq
        4
    rrzwxq  
    OP
       Mar 5, 2021
    @knightdf 说是网络问题有什么依据吗?因为现在客户需要拿出有力的证据来证明是网络问题,这样才好推动解决办法
    knightdf
        5
    knightdf  
       Mar 5, 2021
    @rrzwxq 直接在生产环境调试网络,或者用稳定的出口网络转发
    wakzz
        6
    wakzz  
       Mar 5, 2021
    @rrzwxq 偶现的话,抓包吧,如果是网络问题的话,楼主这个情况应该是异常的连接先 TCP 握手成功,然后 TLS 建立途中出现丢包,接着 TCP 默认重试 3 次发包失败后不再重试,最终断开 TCP 。
    如果抓到的包确实符合这个描述,那就是网络问题石锤了。
    rrzwxq
        7
    rrzwxq  
    OP
       Mar 5, 2021
    @wakzz 嗯嗯,谢谢,就是这个是偶发性得,不好抓
    systemcall
        8
    systemcall  
       Mar 6, 2021 via Android
    是的
    有办法可以让墙对你更敏感,之后你再来抓包、连服务就可以了
    方法是用免费的那种梯子,看一些普通人喜欢看的网站,墙真的会加高,会持续一段时间。不知道商宽会不会
    肯定可以抓出来问题的,只是看多久。甚至机场不是特别好的话,偶尔也会有类似的错误
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