Author: degenaro
Date: Wed Jun 22 19:44:12 2016
New Revision: 1749768
URL: http://svn.apache.org/viewvc?rev=1749768&view=rev
Log:
UIMA-4745 DUCC Release 2.1 documentation updates
Modified:
uima/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part1/terminology.tex
Modified:
uima/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part1/terminology.tex
URL:
http://svn.apache.org/viewvc/uima/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part1/terminology.tex?rev=1749768&r1=1749767&r2=1749768&view=diff
==============================================================================
---
uima/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part1/terminology.tex
(original)
+++
uima/uima-ducc/trunk/uima-ducc-duccdocs/src/site/tex/duccbook/part1/terminology.tex
Wed Jun 22 19:44:12 2016
@@ -24,70 +24,75 @@
\chapter{Glossary}
\begin{description}
+
+\item[Agent] DUCC Agent processes run on every node in the system. The Agent
receives orders to
+ start and stop processes on each node. Agents monitors nodes, sending
heartbeat packets with node
+ statistics to interested components (such as the RM and web-server). If
CGroups are installed in
+ the cluster, the Agent is responsible for managing the CGroups for each job
process. All processes
+ other than the DUCC management processes are are managed as children of the
agents.
+
\item[Autostarted Service] An autostarted service is a registered service that
is started automatically
by DUCC when the DUCC system is booted.
-\item[Dependent service or job] A dependent service or job is a service or job
that specifies one
+\item[Dependent Service or Job] A dependent service or job is a service or job
that specifies one
or more service dependencies in their job specification. The service or job
is dependent upon the
referenced service being operational before being started by DUCC.
\item[DUCC] Distributed UIMA Cluster Computing.
-\item[Registered service] A registered service is a service that is registered
with DUCC. DUCC
- saves the service specification and fully manages the service, insuring it
is running when needed,
- and shutdown when not.
+\item[DUCC-MON] DUCC-MON is the DUCC web-server.
-\item[Service Instance] A service instance is one physical process which runs
a CUSTOM or UIMA-AS
- service. UIMA-AS services are usually scaled-out with multiple instances
implementing the
- same underlying service logic.
+\item[Job] A DUCC job consists of the components required to deploy and
execute a UIMA pipeline over
+ a computing cluster. It consists of a JD to run the Collection Reader, a set
of JPs to run the UIMA
+ AEs, and a Job Specification to describe how the parts fit together.
+
+\item[Job Driver (JD)]The Job Driver is a thin wrapper that encapsulates a
Job's Collection
+ Reader. The JD executes as a process that is scheduled and deployed by DUCC.
+
+\item[Job Process (JP)] The Job Process is a thin wrapper that encapsulates a
job's pipeline
+ components. The JP executes in a process that is scheduled and deployed by
DUCC.
+
+\item[Job Specification] The Job Specification is a collection of properties
that describe work to be
+ scheduled and deployed by DUCC. It
+ identifies the UIMA components (CR, AE, etc) that comprise the job and the
system-wide
+ properties of the job (CLASSPATHs, RAM requirements, etc).
+
+\item[Machine] A physical computing resource managed by the DUCC Resource
Manager.
+
+\item[Node] See Machine.
\item[Orchestrator (OR)] The Orchestrator manages the life cycle of all
entities within DUCC.
+\item[Process] A process is one physical process executing on a machine in the
DUCC cluster. DUCC
+ jobs are comprised of one or more processes (JDs and JPs). Each process is
assigned one or
+ more {\em shares} by the DUCC scheduler.
+
\item[Process Manager (PM) ] The Process Manager coordinates distribution of
work among the Agents.
+\item[Registered Service] A registered service is a service that is registered
with DUCC. DUCC
+ saves the service specification and fully manages the service, insuring it
is running when needed,
+ and shutdown when not.
+
\item[Resource Manager (RM) ] The Resource Manager schedules physical
resources for DUCC work.
\item[Service Endpoint] In DUCC, the service endpoint provides a unique
identifier for a service. In
the case of UIMA-AS services, the endpoint also serves as a well-known
address for contacting the
service.
+\item[Service Instance] A service instance is one physical process which runs
a CUSTOM or UIMA-AS
+ service. UIMA-AS services are usually scaled-out with multiple instances
implementing the
+ same underlying service logic.
+
\item[Service Manager (SM)] The Service Manager manages the life-cycles of
UIMA-AS and CUSTOM
services. It coordinates registration of services, starting and stopping of
services, and ensures
that services are available and remain available for the lifetime of the
jobs.
-\item[Agent] DUCC Agent processes run on every node in the system. The Agent
receives orders to
- start and stop processes on each node. Agents monitors nodes, sending
heartbeat packets with node
- statistics to interested components (such as the RM and web-server). If
CGroups are installed in
- the cluster, the Agent is responsible for managing the CGroups for each job
process. All processes
- other than the DUCC management processes are are managed as children of the
agents.
-
-\item[DUCC-MON] DUCC-MON is the DUCC web-server.
-
-\item[Job Driver (JD)]The Job Driver is a thin wrapper that encapsulates a
Job's Collection
- Reader. The JD executes as a process that is scheduled and deployed by DUCC.
-
-\item[Job Process (JP)] The Job Process is a thin wrapper that encapsulates a
job's pipeline
- components. The JP executes in a process that is scheduled and deployed by
DUCC.
-
-\item[Job specification] The Job Specification is a collection of properties
that describe work to be
- scheduled and deployed by DUCC. It
- identifies the UIMA components (CR, AE, etc) that comprise the job and the
system-wide
- properties of the job (CLASSPATHs, RAM requirements, etc).
-
-\item[Job] A DUCC job consists of the components required to deploy and
execute a UIMA pipeline over
- a computing cluster. It consists of a JD to run the Collection Reader, a set
of JPs to run the UIMA
- AEs, and a Job Specification to describe how the parts fit together.
-
\item[Share Quantum] The DUCC scheduler abstracts the nodes in the cluster as
a single large
conglomerate of resources: memory, processor cores, etc. The scheduler
logically decomposes
the collection of resources into some number of equal-sized atomic units.
Each unit of work requiring
resources is apportioned one or more of these atomic units. The smallest
possible atomic
unit is called the {\em share quantum}, or simply, {\em share}.
-\item[Process]A process is one physical process executing on a machine in the
DUCC cluster. DUCC
- jobs are comprised of one or more processes (JDs and JPs). Each process is
assigned one or
- more {\em shares} by the DUCC scheduler.
-
\item[Weighted Fair Share] A weighted fair share calculation is used to
apportion resources
equitably to the outstanding work in the system. In a non-weighted
fair-share system, all
work requests are given equal consideration to all resources. To provide
some (``more important'')
