This HTML5 document contains 94 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Subject Item

n11:this

foaf:made

n4:VirtAWSDBpedia38

Subject Item

n10:this

sioc:creator_of

n4:VirtAWSDBpedia38

Subject Item

n15:item

n16:services_of

n4:VirtAWSDBpedia38

Subject Item

n12:this

sioc:creator_of

n4:VirtAWSDBpedia38

Subject Item

n2:VOS

sioc:container_of

n4:VirtAWSDBpedia38

atom:entry

n4:VirtAWSDBpedia38

atom:contains

n4:VirtAWSDBpedia38

Subject Item

n4:VirtAWSPublicDataSets

sioc:links_to

n4:VirtAWSDBpedia38

Subject Item

n4:VirtAWSDBpedia38

rdf:type

atom:Entry sioct:Comment

dcterms:created

2017-06-13T05:46:48.982108

dcterms:modified

2017-06-29T07:35:53.527643

rdfs:label

VirtAWSDBpedia38

foaf:maker

n8:this n11:this

dc:title

VirtAWSDBpedia38

opl:isDescribedUsing

n23:rdf

sioc:has_creator

n10:this n12:this

sioc:attachment

n13:png n14:png n17:png n26:png n27:png n29:png n30:png n31:png n32:png n33:png n34:png n35:png n36:png n37:png n38:png n40:png

sioc:content

%META:TOPICPARENT{name="VirtAWSPublicDataSets"}% ---+ Getting Started with DBpedia via preloaded and preconfigured Amazon EC2 AMIs for Virtuoso Cluster Edition 1 If not already running, instantiate a [[VirtInstallationEC2][Virtuoso EC2 AMI instance]]. Note that we recommend a minimum 64-bit extra large image Virtuoso Release 6 AMI instance (ami-23d0334a) with 15GB of memory be used, which is an "Extra Large (m1.xlarge, 15GB)" AMI instance type. 1 You can obtain a list of available Virtuoso public snapshots from the [[https://console.aws.amazon.com/ec2/home][AWS Management Console]] by clicking the "Snapshot" link, selecting "Public Snapshots" from the viewing drop-down list, and searching for <i>Virtuoso</i>. An EBS volume can be created for any of these snapshots and attached to a Virtuoso EC2 AMI instance. %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets06.png" style="wikiautogen"/>%BR%%BR%%BR% |<strong>Description</strong>| DBpedia 3.8 - Virtuoso 6.4 Cluster Edition | |<strong>Virtuoso Server Type</strong> | Cluster Edition | |<strong>Snapshot ID (Linux/Unix)</strong> | snap-02baf371 | |<strong>Size</strong> | 75 GB | |<strong>Creation Date</strong> | 2012-08-28 | |<strong>Last Updated</strong> | 2012-08-28 | |<strong>License</strong> | Creative Commons: Attribution Share Alike | |<strong>Submitted By<strong> | OpenLink Software | |<strong>Source</strong> | http://www.openlinksw.com | %BR%%BR% 1 Select the "Volumes" link under the "Elastic Block Storage" section %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets01.png" style="wikiautogen"/>%BR%%BR% 1 Click on the "Create Volume" button and set "Size" to 75GB, "Availability Zone" to match the zone of your running Virtuoso EC2 AMI instance and "Snaphot" to the required DBpedia AWS snapshot. %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets02.png" style="wikiautogen"/>%BR%%BR% 1 Select the newly created volume and click on the "Attach Volume" button to attach the volume to the required Virtuoso EC2 AMI instance %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets03.png" style="wikiautogen"/>%BR%%BR% 1 Select the "Instance" and "Device" to which the volume should be attached, and click "Attach" %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets04.png" style="wikiautogen"/>%BR%%BR% 1 The volume will now be listed as "attached" to the specified Virtuoso EC2 AMI instance id. %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets05.png" style="wikiautogen"/>%BR%%BR% 1 <b><code>ssh</code></b> into the Virtuoso EC2 AMI instance and create a directory for the Virtuoso DBpedia 3.8 snapshot volume attached previously to be mounted under. <verbatim> $ ssh -i MyKeyPair.pem root@<ec2-ami-public-dns-cname> [root@ip-10-218-91-224 ~]# cd /opt/virtuoso [root@ip-10-218-91-224 virtuoso]# ls bin hosting lib virtuoso-environment.csh vsp database install vad virtuoso-environment.sh [root@ip-10-218-91-224 virtuoso]# . ./virtuoso-environment.sh [root@ip-10-218-91-224 virtuoso]# mkdir dbpedia </verbatim> 1 Mount the Virtuoso DBpedia 3.8 snapshot volume. <verbatim> [root@ip-10-218-91-224 virtuoso]# mount /dev/sdf /opt/virtuoso/dbpedia </verbatim> 1 Check the mount point to ensure the operation was successful. <verbatim> [root@ip-10-218-91-224 virtuoso]# ls -l /opt/virtuoso/dbpedia/ total 40 lrwxrwxrwx 1 root root 17 May 5 16:56 bin -> /opt/virtuoso/bin -rwxr-xr-x 1 root root 293 May 6 08:04 crestore.sh -rwxr-xr-x 1 root root 97 May 6 08:23 cstart.sh lrwxrwxrwx 1 root root 21 May 5 13:29 install -> /opt/virtuoso/install drwx------ 2 500 500 16384 Apr 8 2009 lost+found drwxr-xr-x 3 root root 4096 May 6 17:11 cluster_01 drwxr-xr-x 3 root root 4096 May 6 16:40 cluster_02 drwxr-xr-x 3 root root 4096 May 6 16:40 cluster_03 drwxr-xr-x 3 root root 4096 May 6 16:41 cluster_04 [root@ip-10-218-91-224 virtuoso] </verbatim> 1 To run the newly attached data set, first set up your Virtuoso environment, and ensure the default database instance has been stopped. <verbatim> [root@ip-10-218-91-224 ~]# cd /opt/virtuoso [root@ip-10-218-91-224 virtuoso]# . ./virtuoso-environment.sh [root@ip-10-218-91-224 virtuoso]# virtuoso-stop.sh </verbatim> 1 Navigate to the mounted data set, and set the <code>VIRTUOSO_HOME</code> environment variable to this location. <verbatim> [root@ip-10-218-91-224 virtuoso]# cd /opt/virtuoso/dbpedia [root@ip-10-218-91-224 dbpedia# export VIRTUOSO_HOME=`pwd` </verbatim> 1 Note that as stated in step 1, it is recommended these DBpedia snaphots be used with a minimum 64-bit extra large image Virtuoso Release 6 AMI instance (ami-23d0334a) with 15GB of memory. Should you choose to use the "large image" with only 7.5GB memory then the Virtuoso configuration file (virtuoso.ini) must be edited, and the "<code><nowiki>NumberOfBuffers</nowiki></code>" parameter therein reduced from <code>1000000</code> to <code>500000</code> before attempting to start the Virtuoso server instance; otherwise, it will fail to start due to lack of memory. Note as this is a 4 node cluster the "<code><nowiki>NumberOfBuffers</nowiki></code>" should be split across the "virtuoso.ini" for each node ie <code>250000</code> for 16GB RAM and <code>125000</code> for 7.5GB RAM. For more details please refer to the [[http://docs.openlinksw.com/virtuoso/rdfperformancetuning.html][Virtuoso RDF Performance Tuning Guide]] in the online documentation. 1 Run the following command to remove any old transaction log files that may still be in place before starting the cluster. <verbatim> [root@ip-10-218-91-224 virtuoso]# rm cluster_0*/database.trx </verbatim> 1 Run the <code>virtuoso-start.sh</code> script to start the Virtuoso server containing the attached data set. <verbatim> [root@ip-10-218-91-224 dbpedia]# virtuoso-start.sh Starting Virtuoso instance in [cluster_01] Starting Virtuoso instance in [cluster_02] Starting Virtuoso instance in [cluster_03] Starting Virtuoso instance in [cluster_04] [root@ip-10-218-91-224 dbpedia]# </verbatim> 1 Note the preconfigured Virtuoso Server "dba" user's password is set to the default of "dba". It is strongly recommended that this be changed to a suitably secure password using the *System Admin* -> *User Accounts* tab in the Virtuoso Conductor (<code><nowiki>http://ec2-ami-public-dns-cname/conductor/</nowiki></code>). %BR%%BR% 1 The Virtuoso hosted data set can now be explored using an HTML browser, or queried from the SPARQL or Faceted Browser web service endpoints. For example, in the DBpedia datasets -- * A description of the resource Bob Marley can be viewed as: <code><nowiki>http://ec2-ami-public-dns-cname/resource/Bob_Marley </nowiki></code> %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets07.png" style="wikiautogen"/>%BR%%BR% * A Faceted Search can be performed on a resource at <code><nowiki>http://ec2-ami-public-dns-cname/fct </nowiki></code> %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets08.png" style="wikiautogen"/>%BR% %BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets09.png" style="wikiautogen"/>%BR%%BR% %BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets10.png" style="wikiautogen"/>%BR%%BR% * A SPARQL query can be run to obtain information on a resource at <code><nowiki>http://ec2-ami-public-dns-cname/sparql </nowiki></code> %BR%%BR%<img src="%ATTACHURLPATH%/VirtAWSPublicDataSets11.png" style="wikiautogen"/>%BR% ---++ Related Items * [[VirtInstallationEC2][Virtuoso EC2 AMI instance]] * [[VirtAWSPublicDataSets][Pre-configured & Pre-loaded Virtuoso instances (DBpedia, BBC Music & Programmes etc.)]] * [[VirtEC2AMIDBpediaInstall][Creating Your Own DBpedia 3.2 Instance]] * [[VirtEC2AMINeuroCommonsInstall][Creating Your Own Neurocommons Instance]] * [[VirtEC2AMIBio2rdfInstall][Creating Your Own Bio2RDF Instance]] * [[VirtEC2AMIMusicBrainzInstall][Creating Your Own MusicBrainz Instance]] * [[VirtSPARQLEndpointProtection][Safeguarding your Virtuoso-hosted SPARQL Endpoint]] * [[VirtTipsAndTricksGuideSPARQLEndpointProtection][SPARQL Endpoint Protection Methods Collection]] * [[http://docs.openlinksw.com/virtuoso/][Virtuoso documentation]] * [[http://docs.openlinksw.com/virtuoso/rdfsparql.html#rdfsupportedprotocolendpoint][SPARQL Service Endpoint]] * [[http://docs.openlinksw.com/virtuoso/rdfsparql.html#rdfsupportedprotocolendpointuri][Service Endpoint Security]] * [[http://docs.openlinksw.com/virtuoso/rdfsparql.html#sparqwebservicetbl][Managing a SPARQL Web Service Endpoint]] * [[http://docs.openlinksw.com/virtuoso/rdfsparql.html][SPARQL]] * [[VirtTipsAndTricksGuide][Virtuoso Tips and Tricks Collection]] * [[VirtSPARQLDET][SPARQL Endpoint DET Configuration Guide]] * [[VirtSPARQLSecurityWebID][WebID Protocol & SPARQL Endpoint ACLs Tutorial]] * [[VirtOAuthSPARQL][SPARQL OAuth Tutorial]] * [[VirtTipsAndTricksGuideSPARQLEndpoints][Securing SPARQL endpoints]] * [[http://ods.openlinksw.com/wiki/ODS/OdsSPARQLAuth][SPARUL over SPARQL using the http://cname:port/sparql-auth endpoint]] * [[VirtAuthServerUI][Virtuoso Authentication Server UI]] * [[VirtSPARQLSSL][Manage a SPARQL-WebID based Endpoint]] * [[VirtSetupSSL][Configure Virtuoso instance as an X.509 Certificate Authority and HTTPS listener]] * [[http://ods.openlinksw.com/wiki/ODS/ODSSetupSSL][Configure Virtuoso+ODS instance as an X.509 Certificate Authority and HTTPS listener]] * [[http://ods.openlinksw.com/wiki/ODS/VirtODSSecurityWebID][WebID Protocol Support in OpenLink Data Spaces]]. * Manage ODS Datadspaces Objects WebID Access Control Lists (ACLs): * [[http://ods.openlinksw.com/wiki/ODS/ODSBriefcaseWebID][ODS Briefcase WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBriefcaseWebIDPerson][Person Entity WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBriefcaseWebIDGroup][Group Entity WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBriefcaseWebIDPublic][Public WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSFeedManagerWebIDACL][ODS Feed Manager WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSFeedManagerWebIDACLPerson][Person Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSFeedManagerWebIDACLGroup][Group Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSFeedManagerWebIDACLPublic][Public Specific ACL for anyone with a WebID]] * [[http://ods.openlinksw.com/wiki/ODS/ODSCalendarWebIDACL][ODS Calendar WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSCalendarWebIDACLPerson][Person Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSCalendarWebIDACLGroup][Group Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSCalendarWebIDACLPublic][Public Specific ACL for anyone with a WebID]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBookmarksWebIDACL][ODS Bookmark Manager WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBookmarksWebIDACLPerson][Person Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBookmarksWebIDACLGroup][Group Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBookmarksWebIDACLPublic][Public Specific ACL for anyone with a WebID]] * [[http://ods.openlinksw.com/wiki/ODS/ODSAddressBookWebIDACL][ODS Addressbook WebID based ACL Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSAddressBookWebIDACLPerson][Person Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSAddressBookWebIDACLGroup][Group Entity Specific ACL]] * [[http://ods.openlinksw.com/wiki/ODS/ODSAddressBookWebIDACLPublic][Public Specific ACL for anyone with a WebID]] * [[http://ods.openlinksw.com/wiki/ODS/ODSPkiSetup][Guide for Set up a X.509 certificate issuer and HTTPS listener and generate ODS user certificates.]] * [[http://ods.openlinksw.com/wiki/ODS/VirtODSPubSubHub][Setting up PubSubHub in ODS]] * [[http://ods.openlinksw.com/wiki/ODS/VirtPubSubHub][PubSubHubBub Demo Client Example]] * [[http://ods.openlinksw.com/wiki/ODS/VirtFeedPubSubHub][Feed subscription via PubSubHub protocol Example ]] * [[http://ods.openlinksw.com/wiki/ODS/VirtPubSubHubACL][Setting Up PubSubHub to use WebID Protocol or IP based control lists]] * [[http://ods.openlinksw.com/wiki/ODS/OdsKeyImport][CA Keys Import using Conductor]] * [[http://ods.openlinksw.com/wiki/ODS/ODSGenerateX509Certificate][Generate an X.509 Certificate hosted WebID Guide]] * [[http://ods.openlinksw.com/wiki/ODS/ODSGenerateWebIDX509CertOSKeystore][Generate an X.509 Certificate (with a WebID watermark) to be managed by host operating system keystore]] * [[http://ods.openlinksw.com/wiki/ODS/ODSGenerateWebIDX509CertBrsKeystore][Generate an X.509 Certificate (with a WebID watermark) to be managed by a browser-based keystore]] * [[http://ods.openlinksw.com/wiki/ODS/ODSWebIDIdP][Using Virtuoso's WebID Verification Proxy Service with a WebID-bearing X.509 certificate]] * [[http://ods.openlinksw.com/wiki/ODS/ODSWebIDIdpProxy][Using Virtuoso's WebID Identity Provider (IdP) Proxy Service with an X.509 certificate]] * [[http://ods.openlinksw.com/wiki/ODS/ODSBriefcaseWebIDShareFile][ODS Briefcase WebID Protocol Share File Guide]] * [[http://esw.w3.org/topic/foaf+ssl][WebID Protocol Specification]] * [[https://foaf.me/simpleLogin.php][Test WebID Protocol Certificate page]] * [[http://test.foafssl.org/cert/][WebID Protocol Certificate Generation page]]

sioc:id

62c04c73694373a29c18dea3cc7a2f95

sioc:link

n4:VirtAWSDBpedia38

sioc:has_container

n2:VOS

n16:has_services

n15:item

atom:title

VirtAWSDBpedia38

sioc:links_to

n9:home n18:rdfsupportedprotocolendpointuri n18:sparqwebservicetbl n19: n18:rdfsupportedprotocolendpoint n20:ODSSetupSSL n20:VirtODSSecurityWebID n21:html n20:OdsSPARQLAuth n4:OpenLink n20:ODSBriefcaseWebIDGroup n20:ODSBriefcaseWebIDPublic n20:ODSBriefcaseWebID n20:ODSBriefcaseWebIDPerson n20:ODSFeedManagerWebIDACLGroup n20:ODSFeedManagerWebIDACLPublic n24:html n20:ODSFeedManagerWebIDACL n20:ODSFeedManagerWebIDACLPerson n25:WebID n20:ODSGenerateX509Certificate n20:ODSGenerateWebIDX509CertOSKeystore n20:VirtPubSubHubACL n20:OdsKeyImport n20:ODSWebIDIdpProxy n20:ODSBriefcaseWebIDShareFile n20:ODSGenerateWebIDX509CertBrsKeystore n20:ODSWebIDIdP n41: n42:ssl n43:php n20:ODSCalendarWebIDACLGroup n20:ODSCalendarWebIDACLPublic n20:ODSCalendarWebIDACL n20:ODSCalendarWebIDACLPerson n20:ODSBookmarksWebIDACLGroup n20:ODSBookmarksWebIDACLPublic n20:ODSBookmarksWebIDACL n20:ODSBookmarksWebIDACLPerson n20:ODSAddressBookWebIDACLGroup n20:ODSAddressBookWebIDACLPublic n20:ODSAddressBookWebIDACL n20:ODSAddressBookWebIDACLPerson n45:com n20:VirtPubSubHub n20:VirtFeedPubSubHub n20:ODSPkiSetup n20:VirtODSPubSubHub

atom:source

n2:VOS

atom:author

n11:this

atom:published

2017-06-13T05:46:48Z

atom:updated

2017-06-29T07:35:53Z

sioc:topic

n2:VOS