When running Verastream Host Integrator (VHI) Server Kit on the IBM AIX UNIX platform with a high session load (more than approximately 100 to 400 concurrent sessions), the session server process may terminate and restart.
This issue is further identified by the following symptoms:
- A core file is generated in the /opt/attachmate/verastream/hostintegrator/bin directory (or your equivalent hostintegrator/bin subdirectory, if you installed VHI to a non-default location).
- The system log contains a message similar to the following:
daemon:warn|warning VHI: Host Integrator component Verastream Host Integrator Session Server restarting. Reason: Terminated by signal = SIGABRT.
To resolve this issue, increase the process memory limit before starting the session server by setting the LDR_CNTRL environment variable.
For example, LDR_CNTRL=MAXDATA=0x7000000 configures a 2 GB process memory limit. In the sample startup script below, see the inserted red lines.
For additional information about the LDR_CNTRL environment variable, see http://publib.boulder.ibm.com/tividd/td/ITAME/GC32-0846-00/en_US/HTML/am39_perftune11.htm.
For more information about VHI memory usage, see KB 7021335.
For information about configuring a system daemon startup script to run VHI services automatically, see http://docs2.attachmate.com/verastream/vhi/7.1sp2/en/topic/com.attachmate.vhi.vmc.help.online/tasks/vhi_mc_session_svr_sys_daemon.xhtml.