External (non-Caché) Processes

A Caché instance will start processes running executables other than cache[.exe] to perform a number of functions in support of the instance. Instance specific versions of these executables, which are generally specific to the instance version, live in the bin subdirectory of the installation directory. Executables that may be shared by multiple Caché instances live in a common directory.

Persistent processes may be running the following executables, which live in the bin directory on Windows.

Cache[.exe] – The Caché executable.
clmanager.exe – The Caché license server.
cservice.exe – The Caché Windows service. All Caché instance processes are descendants of the instance service.
CStudio.exe – The Caché studio.
csystray.exe – The Caché cube in the system tray.
ctelnetd.exe – The Caché telnet server. Accepts telnet connections and creates Caché server processes to serve the telnet connection.
CTerm.exe – The Terminal.
ctrmd.exe – The local Terminal connection daemon. Accepts local Terminal connections (not telnet) and creates Caché server processes to serve the connection.
cwdimj.exe – Processes the WIJ file during Caché startup and shutdown.

Persistent processes may be running the following executables, which live in the bin directory on UNIX®.

cache - The Caché executable.
clmanager – The Caché license server
cwdimj – Processes the WIJ file during Caché startup and shutdown.

Zen Reports launches java applications which may be long running. These applications run in the java virtual machine and run Java programs under the lib subdirectory of the Caché installation directory. Applications include PrintServer, RenderServer, ExcelExporter and QueuingRenderServer. The purpose of PrintServer is to support printing of PDFs on Windows Vista and above. The purpose of ExcelServer is to speed up rendering of Excel ZEN Reports. The purpose of RenderServer is to speed up the rendering of ZEN Reports PDFs. Speed up is done by keeping the JVM (Java Virtual Machine) hot, so it does not have to be restarted. Cache communicates with these servers via TCP. The ports are configured with Management Portal > System Administration > Zen Reports. The SMP starts the PrintServer. The other servers are started when first Microsoft Excel or PDF report is rendered.

Other programs in the bin directory are used from time to time, but the processes are short running and unlikely to be displayed by a process listing for long.

Executable binaries shared by Caché instances reside in subdirectories of C:\Program Files (x86)\Common Files\InterSystems on Windows. The processes may be seen running these executable binaries from the common directory on Windows.

ISCAgent.exe – Controls mirror failover.
Cterm.exe – The Terminal.

Shared binaries are usually installed in /usr/local/etc/cachesys on UNIX®.

ISCAgent* - Controls mirror failover.

In addition to executable binaries, a number of shared library binaries are stored in the common directory.