ERROR: "XCOMU0298E Unable to allocate... Txpi 211, return value 111"
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ERROR: "XCOMU0298E Unable to allocate... Txpi 211, return value 111"

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Article ID: 252906

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Updated On:

Products

XCOM Data Transport XCOM Data Transport - Linux PC XCOM Data Transport - Windows XCOM Data Transport - z/OS

Issue/Introduction

XCOMU0298E Unable to allocate remote transaction program: Txpi  211: Socket connect error return value = 111

Tried to reinstall XCOM as well and bounce it. Also there is no firewall in between source and destination server. 

Environment

XCOM™ Data Transport® for Linux PC

Resolution

  1. On Linux the XCOM listener is run under an OS service xinetd. For details see doc page: Remote Session Control Parameters
    For error "XCOMU0298E Unable to allocate remote transaction program: Txpi  211: Socket connect error return value = 111", the return value of 111 means ERRCONNREFUSED i.e. the connection was refused to the XCOM Listener.
    If there is no firewall restriction it indicates that there is a likely problem with xinetd service configuration. 

  2. By default the XCOM Listener listens on 2 IPv4 ports (8044, 8045) and 2 IPv6 ports (8046, 8047).
    a. It was confirmed that these 4 txpi* files and the 4 symbolic links to them existed:
    # ls -al $XCOM_HOME/txpi/*

    -rwxr-----. 1 root xcomadm 499 Aug  5  2013 /opt/CA/XCOM/txpi/txpi
    -rwxr-----. 1 root xcomadm 522 Aug  5  2013 /opt/CA/XCOM/txpi/txpi6
    -rwxr-----. 1 root xcomadm 521 Aug  5  2013 /opt/CA/XCOM/txpi/txpis
    -rwxr-----. 1 root xcomadm 526 Aug  5  2013 /opt/CA/XCOM/txpi/txpis6

  3. # ls -al  /etc/xinetd.d/txpi*  
    lrwxrwxrwx. 1 root root 22 Oct 22 14:14 /etc/xinetd.d/txpi -> /opt/CA/XCOM/txpi/txpi
    lrwxrwxrwx. 1 root root 23 Oct 22 14:14 /etc/xinetd.d/txpi6 -> /opt/CA/XCOM/txpi/txpi6
    lrwxrwxrwx. 1 root root 23 Oct 22 14:14 /etc/xinetd.d/txpis -> /opt/CA/XCOM/txpi/txpis
    lrwxrwxrwx. 1 root root 24 Oct 22 14:14 /etc/xinetd.d/txpis6 -> /opt/CA/XCOM/txpi/txpis6
    b. However there was no output from this command: 
    # netstat -na | grep 804 | grep LISTEN
    It should show:  
    tcp        0      0 0.0.0.0:8044            0.0.0.0:*               LISTEN
    tcp        0      0 0.0.0.0:8045            0.0.0.0:*               LISTEN
    tcp6       0      0 :::8046                 :::*                    LISTEN
    tcp6       0      0 :::8047                 :::*                    LISTEN
  4. Restart the xinetd service using command:
    # systemctl restart xinetd

That resolved the problem. The netstat output showed expected results and XCOM file transfers from the remote server were then successful.

Additional Information

IMPORTANT NOTE:

XCOM Data Transport for Linux r12.0 has been certified to run on RHEL 9 or SLES 15 SP03.

In order to run XCOM on these levels of the Operating System you need to install the latest XCOM solution LU11905 that installs XCOM listener services in SYSTEMD format since the XINETD system service has been deprecated on these latest Operating Systems. Also, solutions are cumulative and include all published fixes for XCOM Linux 12.0.   

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