I have a RO client server setup based on IpHttpClientChannel with SSL.
In rare cases (where server exe gets restarted or other) I have a client (thread) which hangs.
It looks like it hangs in the RO Login procedure.
I set the Timeout value to prevent this but this does not work
Is there something I am doing wrong in my code which could cause this
Call stack:
Client code snippets:
((RemObjects.SDK.IpHttpClientChannel)this.clientChannel).Timeout = 5 * 60;
var binMessage = ((RemObjects.SDK.BinMessage)message);
binMessage.MaxMessageSize = Int32.MaxValue;
binMessage.MaxDecompressedMessageSize = Int32.MaxValue;
binMessage.UseCompression = true; // FVC: Note: By default true
binMessage.EnforceMaxMessageSize = false; // FVC: Needs to be done here and on the server side (decompress option) - As suggested by Evgeny on 11/04/2023 cfr. https://talk.remobjects.com/t/what-does-exception-operation-succeeded-succesfully-mean/26769/8
if (servicesuffix == NetworkUtil.ctServiceSuffixAES)
binMessage.Envelopes.Add(new RemObjects.SDK.MessageEnvelopeItem(new AesEncryptionEnvelope(aespassphrase)));
else if (servicesuffix==NetworkUtil.ctServiceSuffixPassThrough)
binMessage.Envelopes.Add(new RemObjects.SDK.MessageEnvelopeItem(new PassThroughEnvelope()));
/* FVC: Alternative is one envelope with all the envelopes (on binenv service suffix) but then we need to select using binMessage.Envelopes[x].Enabled = false/true;
* However the receiving end will need to do something similar */
public bool connect(out string errormsg, string serverurl = null, string user = null, string pwd = null,ROConnectionConfig coninfo=null, int connecttimeout = 5)
{
setCredentials(serverurl, preferredConnection_, user, pwd,coninfo);
errormsg = null;
bool bLoginOK = false;
try
{
roCon_ = Officinall.Utility.ROConnectionInfo.createPreferredROConnection(serverurl_, preferredConnection_, connecttimeout,connectionConfig_.aespassphrase_);
//roCon_ = Officinall.Utility.ROConnectionInfo.createROSuperHttpsConnection(serverurl_, connecttimeout); // FVC 10/2021: super https keeps connection alive but does not support counting the network traffic yet (should also have pushed server->client events)
//roCon_ = Officinall.Utility.ROConnectionInfo.CreateROHttpsConnection(serverurl_); // FVC 10/2021: IpHttpClientChannel supports counting network traffic and has simple keepalive but needs to create more connections than superhttp
if (roCon_.clientChannel is RemObjects.SDK.ClientChannel)
{
var cc = (RemObjects.SDK.ClientChannel)roCon_.clientChannel;
cc.OnLoginNeeded += new System.EventHandler<RemObjects.SDK.LoginNeededEventArgs>(this.ClientChannel_OnLoginNeeded);
}
if (roCon_.clientChannel is RemObjects.SDK.IpHttpClientChannel)
{
var httpch = (RemObjects.SDK.IpHttpClientChannel)roCon_.clientChannel;
httpch.BeforeSendStream += ClientChannel_BeforeSendStream;
httpch.AfterReceiveStream += ClientChannel_AfterReceiveStream;
if (connectionConfig_.clientcert_!=null)
httpch.SslOptions.Certificate = connectionConfig_.clientcert_;
}
bLoginOK = this.performLogin(false);
protected override bool performLogin(bool bLoginNeeded)
{
...
var itfLogin = OffCloudServer.CoCloudPharmacyLoginService.Create(roCon.message, roCon.clientChannel);
var loginData = new CloudLoginData(curSessionUser, curPharmacyName_, curSessionPassword, curSessionMachineId_, curClientTags_,
connectionConfig.accessToken,connectionConfig.purpose,connectionConfig.clientapplicationkey);
string jsonLoginData = loginData.saveToJson(null);
bool bRet=itfLogin.Login(curSessionUser, jsonLoginData);
...
return bRet;
}
FYI:Netstat shows me
TCP 192.168.242.225:53822 81.82.213.199:7572 ESTABLISHED
[OffCloud.exe]
I looked at thre threads and callstacks of the server process but I do not see any issues or clues to what this issue is
