Cons113 Error: 1004 rsslGetHostByName() failed

jxu2

when i try to run Cons113 with private -username -password -clientId , it shows that

loggerMsg

TimeStamp: 13:44:37.182

ClientName: ChannelCallbackClient

Severity: Warning

Text: Received ChannelDownReconnecting event on channel Channel_4

Instance Name Consumer_4_1

RsslReactor 0x0x1804260

RsslChannel 0x0x1804260

Error Id -1

Internal sysError 0

Error Location

Error Text </XXX/Real-Time-SDK/Cpp-C/Eta/Impl/Transport/ripcutils.c:1445> Error: 1004 rsslGetHostByName() failed. Host name is incorrect. System errno: (0)

loggerMsgEnd

how to solve this problem ?

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Accepted answers

Jirapongse

@jxu2

According to the error, it looks like the OpenSSL is unable to locate the certificate file, such as cert.pem.

On my Linux machine, the certificate file is at /etc/pki/tls.

sh-4.2# ls -al /etc/pki/tls
total 36
drwxr-xr-x 5 root root  4096 May 12 02:06 .
drwxr-xr-x 1 root root  4096 May 12 02:06 ..
lrwxrwxrwx 1 root root    49 May 12 02:06 cert.pem -> /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem
drwxr-xr-x 2 root root  4096 May 12 02:06 certs
drwxr-xr-x 2 root root  4096 Mar 28 10:36 misc
-rw-r--r-- 1 root root 10923 Mar 28 10:31 openssl.cnf
drwxr-xr-x 2 root root  4096 Mar 28 10:36 private

Then, I specified this file in the EmaConfig.xml under the Channel_4 element.

<OpenSSLCAStore value="/etc/pki/tls/cert.pem"/>

If I don't specify it, I get the following error.

However, after specifying the OpenSSLCAStore, the application works properly.

loggerMsg
    TimeStamp: 05:25:25.854
    ClientName: ChannelCallbackClient
    Severity: Success
    Text:    Received ChannelUp event on channel Channel_4
        Instance Name Consumer_4_1
        Connected component version: ads3.4.2.L1.linux.tis.rrg 64-bit
loggerMsgEnd

I hope this will help you

All comments

Jirapongse

@jxu2

The error indicates that it was unable to resolve the configured server name.

Cons113 is used to connect to Refinitiv Real-Time Optimized so you need to verify the EmaConfig.xml configuration file in the working directory of the Cons113.

       <Channel>
            <Name value="Channel_4"/>
            <ChannelType value="ChannelType::RSSL_ENCRYPTED"/>
            <CompressionType value="CompressionType::None"/>
            <GuaranteedOutputBuffers value="5000"/>            
            <Location value="eu-west"/>
            <EnableSessionManagement value="1"/>
            <EncryptedProtocolType value="EncryptedProtocolType::RSSL_SOCKET"/>
           <ObjectName value=""/>
        </Channel>

You may specify the Location instead of the Host and Port configurations.

To verify the problem, you need to enable the verbose logging in EMA by using the following configurations.

        <Consumer>
            <Name value="Consumer_4"/>
            <Channel value="Channel_4"/>          
            <Logger value="Logger_1"/>
            <Dictionary value="Dictionary_2"/>
          </Consumer>
...
...
        <Logger>
            <Name value="Logger_1"/>
            <LoggerType value="LoggerType::File"/>
            <LoggerSeverity value="LoggerSeverity::Verbose"/>
        </Logger>

The EMA log file (emaLog_xxx.log) will be created in the working directory.

To verify the problem, please share the EMA log file (emaLog_xxx.log) and the EMA configuration file (EMAConfig.xml).

jxu2

when i upload the emaconfig.xml and emaLog_xxx.log, it remainds me something went wrong!

--- EmaConfig.xml ---

<!--<Host value="com.amazonaws.vpce.us-east-1.vpcesvc-04b75a16bc641742c"/>

<!-- EMA discovers a host and a port from RDP service discovery for the specified location

when both of them are not set and the session management is enable. -->

</Channel>

--- EmaLog_xxx.log --

loggerMsg

TimeStamp: 11:29:03.756

ClientName: ChannelCallbackClient

Severity: Warning

Text: Received ChannelDownReconnecting event on channel Channel_4

Instance Name Consumer_4_1

RsslReactor 0x0x2c2a620

RsslChannel 0x0x2c2a620

Error Id -1

Internal sysError 0

Error Location /home/XXX/Real-Time-SDK/Cpp-C/Eta/Impl/Reactor/rsslReactorWorker.c:1480

Error Text </home/XXX//Real-Time-SDK/Cpp-C/Eta/Impl/Transport/ripcsslutils.c:1188> Error: 2002 Certificate validation error. OpenSSL Return code: self signed certificate in certificate chain

loggerMsgEnd

jxu2

openssl version in my machine:

openssl-1.0.2k-1.fc24.x86_64

openssl-libs-1.0.2k-1.fc24.x86_64

openssl-devel-1.0.2k-1.fc24.x86_64

Jirapongse

@jxu2

According to the error, it looks like the OpenSSL is unable to locate the certificate file, such as cert.pem.

On my Linux machine, the certificate file is at /etc/pki/tls.

sh-4.2# ls -al /etc/pki/tls
total 36
drwxr-xr-x 5 root root  4096 May 12 02:06 .
drwxr-xr-x 1 root root  4096 May 12 02:06 ..
lrwxrwxrwx 1 root root    49 May 12 02:06 cert.pem -> /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem
drwxr-xr-x 2 root root  4096 May 12 02:06 certs
drwxr-xr-x 2 root root  4096 Mar 28 10:36 misc
-rw-r--r-- 1 root root 10923 Mar 28 10:31 openssl.cnf
drwxr-xr-x 2 root root  4096 Mar 28 10:36 private

Then, I specified this file in the EmaConfig.xml under the Channel_4 element.

<OpenSSLCAStore value="/etc/pki/tls/cert.pem"/>

If I don't specify it, I get the following error.

However, after specifying the OpenSSLCAStore, the application works properly.

loggerMsg
    TimeStamp: 05:25:25.854
    ClientName: ChannelCallbackClient
    Severity: Success
    Text:    Received ChannelUp event on channel Channel_4
        Instance Name Consumer_4_1
        Connected component version: ads3.4.2.L1.linux.tis.rrg 64-bit
loggerMsgEnd

I hope this will help you

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