svn commit: r1549871 - /uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex

[ea...@apache.org]

Author: eae
Date: Tue Dec 10 15:50:09 2013
New Revision: 1549871

URL: http://svn.apache.org/r1549871
Log:
UIMA-3439 add note about limitation of single-user mode (no cgroup)

Modified:
    uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex

Modified: uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex
URL: http://svn.apache.org/viewvc/uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex?rev=1549871&r1=1549870&r2=1549871&view=diff
==============================================================================
--- uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex (original)
+++ uima/sandbox/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part4/install.tex Tue Dec 10 15:50:09 2013
@@ -34,6 +34,14 @@ First-time users must perform single-use
 this configuration is working and verified, it is straightforward to upgrade to a multi-user
 configuration.
 
+\begin{description}
+    \item[Note:] A key feature of DUCC is to run user processes in CGroups in order to guarantee
+      each process always has the amount of RAM requested. Total RAM allocation to the managed process
+      and its child processes that exceed requested memory will go to swap space.
+      Without CGroups a process that exceeds its requested memory size by N\% is killed 
+      (default N=5 in ducc.properties), and memory use by child processes is ignored.
+\end{description}
+
 DUCC is distributed as a compressed tar file.  The instructions below assume installation from one
 of this distribution media.  If building from source, the build creates this file in your svn
 trunk/target directory. The distribution file is in the form