LPC 1.4 Error 0012: Unable to load CURL

Hi. I have just install LPC 1.4 in RH 7. ./start_lpc works good but when trying to connect from client throws error:

Text:Error querying service discovery: Failed to initialize RsslRestClient. Text: </local/jenkins/workspace/RRT  LPC/OS/OL7-64/esdk/source/rtsdk/Cpp-C/Eta/Impl/Transport/rsslSocketTransportImpl.c:547> Error: 0012 Unable to load CURL.

I have correctly setup LD_LIBRARY_PATH as included in the start script and try also other locations but fails with same error.

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Accepted answers

christopher.dugan1

There should be a "libcurl.so" library within the LD_LIBRARY_PATH path. That should have execute permissions. If the library isn't found or has incorrect permissions, then it cannot be loaded. Be sure to have "LD_LIBRARY_PATH" exported in your environment.

Another possibility is that the incorrect compiled version of libcurl.so is in your LD_LIBRARY_PATH. For example, a RHEL8 library is in the directory vs the RHEL7 version. The installer should have installed the correct library version.

All comments

christopher.dugan1

pmorales

Hi. LD_LIBRARY_PATH is correct and libcurl.so have execute permissions. I set the debug option in cnf file and here is part of the log. I can see a "RSSL_SC_USAGE_ERROR" code:

[Thu Apr 18  16:29:19.269253 2024] RSSL Message Of Length 241 Sent on Socket 13
<statusMsg domainType="RSSL_DMT_LOGIN" streamId="1" containerType="RSSL_DT_NO_DATA" flags="0x20 (RSSL_STMF_HAS_STATE)" dataState="RSSL_DATA_SUSPECT" streamState="RSSL_STREAM_CLOSED" code="RSSL_SC_USAGE_ERROR" text="Error querying service discovery: Failed to initialize RsslRestClient. Text: </local/jenkins/workspace/RRTLPC/OS/OL7-64/esdk/source/rtsdk/Cpp-C/Eta/Impl/Transport/rsslSocketTransportImpl.c:547> Error: 0012 Unable to load CURL.
"  dataSize="0">
</statusMsg>

Jirapongse

@pmorales

It should be like this. For example, libcurl.so is in the /opt/lpc/curl directory.

[radmin@d4636649ed34 lpc]$ pwd
/opt/lpc
[radmin@d4636649ed34 lpc]$ export LD_LIBRARY_PATH=/opt/lpc/curl
[radmin@d4636649ed34 lpc]$ echo $LD_LIBRARY_PATH
/opt/lpc/curl
[radmin@d4636649ed34 lpc]$ ldd /opt/lpc/curl/libcurl.so
        linux-vdso.so.1 =>  (0x00007ffe3a159000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f63acac6000)
        libssl.so.10 => /lib64/libssl.so.10 (0x00007f63ac854000)
        libcrypto.so.10 => /lib64/libcrypto.so.10 (0x00007f63ac3f1000)
        libz.so.1 => /lib64/libz.so.1 (0x00007f63ac1db000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f63abe0d000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f63acf59000)
        libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007f63abbc0000)
        libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f63ab8d7000)
        libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f63ab6d3000)
        libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f63ab4a0000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f63ab29c000)
        libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f63ab08c000)
        libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f63aae88000)
        libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f63aac6e000)
        libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f63aaa47000)
        libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f63aa7e5000)
[radmin@d4636649ed34 lpc]$ strings /opt/lpc/curl/libcurl.so | grep libcurl\/
libcurl/7.86.0
[radmin@d4636649ed34 lpc]$

You may use the ldd to verify the requried libraries are found properly. Then, use the strings command to verify the version of libcurl.so.

christopher.dugan1

@pmorales

Based on your response, I gather that you are still experiencing errors? Some questions:

Are you using the startup script to execute the LPC 1.4 process?
What major version of Linux are you using (Linux 7 or 8)?
What version of OpenSSL is installed on your Linux?

pmorales

Dear @Jirapongse, the ldd comand on libcurl.so throws that libcrypto was expecting openssl 1.0.2, and I was working with 1.0.1. I just install openssl 1.0.2 and now is working fine.

Thanks for your help.

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