Причина Chilkat для «Тайм-аута работы сокета». и 'Socket recv не удалось.'? - PullRequest
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Причина Chilkat для «Тайм-аута работы сокета». и 'Socket recv не удалось.'?

0 голосов
/ 02 марта 2020

Я использую компонент Chilkat с php. Приложение является многопоточным, открыто около 10000 потоков.

Общий init imap: 

$this->imap->put_Ssl(true);
$this->imap->put_PeekMode(true);
$this->imap->put_Utf8(true);

Это код подключения imap через HTTPS: 

$this->imap->put_HttpProxyHostname($proxy->ip);
$this->imap->put_HttpProxyPort($proxy->port);
$this->imap->put_HttpProxyPassword($proxy->password);
$this->imap->put_ConnectTimeout(10);
$this->imap->put_ReadTimeout(10);
$isConnected = $this->imap->Connect($imap_server);
$loginAccount = $this->imap->Login($account->email, $account->password);

Следующее код для подключения к imap через туннель s sh: 

$this->tunnel = new CkSocket();

$connectToSsh = false;
$authenticateSsh = false;
$sshOpenTunnelTask = $this->tunnel->SshOpenTunnelAsync($proxy->ip, $proxy->port);

if($sshOpenTunnelTask instanceof CkTask) {
    $sshOpenTunnelTask->run();
    $sshOpenTunnelTask->Wait(10000);
    $connectToSsh = $sshOpenTunnelTask->GetResultBool();

    if ($connectToSsh) {
        $sshAuthenticateTask = $this->tunnel->SshAuthenticatePwAsync($proxy->username, $proxy->password);
        $sshAuthenticateTask->Run();
        $sshAuthenticateTask->Wait(10000);
        $authenticateSsh = $sshAuthenticateTask->GetResultBool();
        if (!$authenticateSsh) {
            $sshOpenTunnelTask->Cancel();
            $sshAuthenticateTask->Cancel();
        }
    } else {
        $sshOpenTunnelTask->Cancel();
    }
}
if($isConnected = $connectToSsh && $authenticateSsh) {
    if($this->imap->UseSshTunnel($this->tunnel)) {
        if($this->imap->Connect($account->imap_server)){
            $loginAccount = $this->imap->Login($account->email, $account->password);
        }
    }
}

И проблема в том, что я столкнулся со следующими типами ошибок:

Для прокси-соединения https: 

ChilkatLog:
  Login:
    DllDate: May 11 2019
    ChilkatVersion: 9.5.0.78
    Architecture: Little Endian; 64-bit
    Language: Linux PHP
    VerboseLogging: 0
    loginX:
      greeting: * OK [CAPABILITY IMAP4rev1 UIDPLUS NAMESPACE QUOTA CHILDREN SORT STARTTLS AUTH=CRAM-MD5 AUTH=DIGEST-MD5 AUTH=PLAIN] Dovecot ready.

      authenticateLogin:
        loginImap:
          ConnectionType: Unencrypted TCP/IP
          getCompleteResponse:
            getImapResponseLine: Socket operation timeout.
            Failed to get next response line from IMAP server.
          --getCompleteResponse
        --loginImap
      --authenticateLogin
    --loginX
    Failed.
  --Login
--ChilkatLog

А для соединения через туннель s sh: 

ChilkatLog:
  Login:
    DllDate: May 11 2019
    ChilkatVersion: 9.5.0.78
    Architecture: Little Endian; 64-bit
    Language: Linux PHP
    VerboseLogging: 0
    loginX:
      greeting: * OK [CAPABILITY IMAP4rev1 UIDPLUS NAMESPACE QUOTA CHILDREN SORT STARTTLS AUTH=CRAM-MD5 AUTH=DIGEST-MD5 AUTH=PLAIN] Dovecot ready.

      authenticateLogin:
        loginImap:
          ConnectionType: TCP inside SSH Tunnel
          getCompleteResponse:
            Socket recv failed.
            Failed to receive more bytes.
            Failed to get next response line from IMAP server.
          --getCompleteResponse
        --loginImap
      --authenticateLogin
    --loginX
    Failed.
  --Login
--ChilkatLog

Что может быть причиной этого:? 

getImapResponseLine: Socket operation timeout.
Failed to get next response line from IMAP server.

и этого:? 

Socket recv failed.
Failed to receive more bytes.
Failed to get next response line from IMAP server.

Приложение работает в Ubuntu 18.04. Вот важные конфигурации Ubuntu:

/ etc / sysctl.conf: 

fs.file-max = 65535
vm.swappiness = 20


net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.secure_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.tcp_max_orphans = 65536
net.ipv4.tcp_fin_timeout = 10
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_keepalive_intvl = 15
net.ipv4.tcp_keepalive_probes = 5
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.tcp_synack_retries = 1
net.ipv4.tcp_mem = 50576   64768   98152
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_orphan_retries = 0
net.ipv4.tcp_syncookies = 0
net.ipv4.netfilter.ip_conntrack_max = 16777216
net.netfilter.nf_conntrack_max = 16777216
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_congestion_control = htcp
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.route.flush = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.lo.rp_filter = 1
net.ipv4.conf.eth0.rp_filter = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.lo.accept_source_route = 0
net.ipv4.conf.eth0.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_forward = 0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_echo_ignore_all = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 1000
net.core.rmem_default = 65536
net.core.wmem_default = 65536
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
fs.inotify.max_user_watches = 16777216

И для файлов:

  • soft nofile 20000
  • hard nofile 20000

ВАЖНО: я заметил эту проблему только для определенного сервера imap

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