RELEASE_NOTES.html - uima-ducc - Git at Google

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 <head>
   <title>Apache Distributed UIMA Cluster Computing (DUCC) 2.1.0 Release Notes</title>
 </head>
 <body>
 <h1>Apache UIMA-DUCC (Unstructured Information Management Architecture - Distributed UIMA Cluster Computing ) v.2.1.0 Release Notes</h1>

 <h2>Contents</h2>
 <p>
 <a href="#what.is.uima-ducc">1. What is UIMA-DUCC?</a><br/>
 <a href="#major.changes">2. Major Changes in this Release</a><br/>
 </p>

 <h2><a name="what.is.uima-ducc">1. What is UIMA-DUCC?</a></h2>
 <p>
   			DUCC stands for Distributed UIMA Cluster Computing. DUCC is a cluster management system providing tooling,
 management, and scheduling facilities to automate the scale-out of applications written to the UIMA framework.
 Core UIMA provides a generalized framework for applications that process unstructured information such as human
 language, but does not provide a scale-out mechanism. UIMA-AS provides a scale-out mechanism to distribute UIMA
 pipelines over a cluster of computing resources, but does not provide job or cluster management of the resources.
 DUCC defines a formal job model that closely maps to a standard UIMA pipeline. Around this job model DUCC
 provides cluster management services to automate the scale-out of UIMA pipelines over computing clusters.
 </p>

 <h2><a name="major.changes">2. Major Changes in this Release</a></h2>
 <p>
 Apache UIMA DUCC 2.1.0 is a major release containing new features and bug fixes. What's new:<br>

 <ul>

 <li>DUCC framework now runs on Java 7 or Java 8 and supports applications using either JRE.
     Note that some job and other history data are saved as Java serialized objects and not
     portable between Java 7 and Java 8.</li>
 <li>Ubuntu and RHEL 7 support </li>
 <li>cgroup enhancements </li>
    <ul>
      <li>uses standard cgroups organization</li>
      <li>supports cgroup swappiness setting, restricting any swapping if desired</li>
    </ul>
 <li>DUCC state and history storage moved from flat files to Cassandra DB, reducing storage size 5x </li>
 <li>Ships with the latest UIMA-AS v2.8.1 </li>
 <li>Ships with recent ActiveMQ v5.13.2 </li>
 <li>DUCC's UIMA-AS services support failover and ssl connectors </li>
 <li>Many DUCC webpage improvements </li>
 <li>Clear user display of DUCC classes and relation to machines </li>
 <li>Robust handling of dynamic changes to DUCC class and nodepool definitions </li>
 <li>Full support of nodepools with different quantum </li>
 <li>DUCC broker access restricted to user ducc </li>
 <li>Eliminate need for user home directories located on a shared filesystem </li>
 <li>Built-in Job error handler programmable per job </li>
 <li>Migration utility for DUCC updates </li>
 <li>Change to vary-off behavior to facilitate cluster management </li>
 <li>Horizontal stacking of services instance allocations </li>
 <li>java-viaducc improvements including separation of stdout from stderr respoonses </li>
 <li>An alert banner is displayed on ducc-mon pages if daemons are down </li>
 <li>Promoted DUCC from sandbox to the regular Apache project in the SVN </li>

 </ul>

 <br><br>

 For a complete list of issues fixed and up-to-date information on UIMA-DUCC issues, see our issue tracker:
 <a href="https://issues.apache.org/jira/issues/?jql=project%20%3D%20UIMA%20AND%20fixVersion%20%3D%20%222.1.0-Ducc%22%20">https://issues.apache.org/jira/issues/?jql=project%20%3D%20UIMA%20AND%20fixVersion%20%3D%20%222.1.0-Ducc%22%20</a>
 </p>


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	<head>
	<title>Apache Distributed UIMA Cluster Computing (DUCC) 2.1.0 Release Notes</title>
	</head>
	<body>
	<h1>Apache UIMA-DUCC (Unstructured Information Management Architecture - Distributed UIMA Cluster Computing ) v.2.1.0 Release Notes</h1>

	<h2>Contents</h2>
	<p>
	<a href="#what.is.uima-ducc">1. What is UIMA-DUCC?</a><br/>
	<a href="#major.changes">2. Major Changes in this Release</a><br/>
	</p>

	<h2><a name="what.is.uima-ducc">1. What is UIMA-DUCC?</a></h2>
	<p>
	DUCC stands for Distributed UIMA Cluster Computing. DUCC is a cluster management system providing tooling,
	management, and scheduling facilities to automate the scale-out of applications written to the UIMA framework.
	Core UIMA provides a generalized framework for applications that process unstructured information such as human
	language, but does not provide a scale-out mechanism. UIMA-AS provides a scale-out mechanism to distribute UIMA
	pipelines over a cluster of computing resources, but does not provide job or cluster management of the resources.
	DUCC defines a formal job model that closely maps to a standard UIMA pipeline. Around this job model DUCC
	provides cluster management services to automate the scale-out of UIMA pipelines over computing clusters.
	</p>

	<h2><a name="major.changes">2. Major Changes in this Release</a></h2>
	<p>
	Apache UIMA DUCC 2.1.0 is a major release containing new features and bug fixes. What's new:<br>

	<ul>

	<li>DUCC framework now runs on Java 7 or Java 8 and supports applications using either JRE.
	Note that some job and other history data are saved as Java serialized objects and not
	portable between Java 7 and Java 8.</li>
	<li>Ubuntu and RHEL 7 support </li>
	<li>cgroup enhancements </li>
	<ul>
	<li>uses standard cgroups organization</li>
	<li>supports cgroup swappiness setting, restricting any swapping if desired</li>
	</ul>
	<li>DUCC state and history storage moved from flat files to Cassandra DB, reducing storage size 5x </li>
	<li>Ships with the latest UIMA-AS v2.8.1 </li>
	<li>Ships with recent ActiveMQ v5.13.2 </li>
	<li>DUCC's UIMA-AS services support failover and ssl connectors </li>
	<li>Many DUCC webpage improvements </li>
	<li>Clear user display of DUCC classes and relation to machines </li>
	<li>Robust handling of dynamic changes to DUCC class and nodepool definitions </li>
	<li>Full support of nodepools with different quantum </li>
	<li>DUCC broker access restricted to user ducc </li>
	<li>Eliminate need for user home directories located on a shared filesystem </li>
	<li>Built-in Job error handler programmable per job </li>
	<li>Migration utility for DUCC updates </li>
	<li>Change to vary-off behavior to facilitate cluster management </li>
	<li>Horizontal stacking of services instance allocations </li>
	<li>java-viaducc improvements including separation of stdout from stderr respoonses </li>
	<li>An alert banner is displayed on ducc-mon pages if daemons are down </li>
	<li>Promoted DUCC from sandbox to the regular Apache project in the SVN </li>

	</ul>

	<br><br>

	For a complete list of issues fixed and up-to-date information on UIMA-DUCC issues, see our issue tracker:
	<a href="https://issues.apache.org/jira/issues/?jql=project%20%3D%20UIMA%20AND%20fixVersion%20%3D%20%222.1.0-Ducc%22%20">https://issues.apache.org/jira/issues/?jql=project%20%3D%20UIMA%20AND%20fixVersion%20%3D%20%222.1.0-Ducc%22%20</a>
	</p>


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