Я новичок в графической базе данных, и я полностью потерялся за несколько дней. Я пытаюсь запустить rexster с titan db 0.5.4 с серверной частью хранилища berkeleyje. но я не уверен, что конфигурация rexster.xml верна.
если я следую документам rexster, я получаю в собачьей конуре пустая БД без вершин и ребер, хотя на самом деле они есть. скриншот
<graphs>
<graph>
<graph-name>bio4j</graph-name>
<graph-type>com.tinkerpop.rexster.config.TinkerGraphGraphConfiguration</graph-type>
<graph-location>/Users/Phoenix/Dropbox/Graph4Bio/Bio4j/bio4j/importGOTitanProperties.properties</graph-location>
<graph-read-only>false</graph-read-only>
<extensions>
<allows>
<allow>tp:frames</allow>
</allows>
</extensions>
</graph>
...
</graphs>
и если я следую ответу здесь< /а>
<graphs>
<graph>
<graph-name>bio4j</graph-name>
<graph-type>com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration</graph-type>
<graph-location>/Users/Phoenix/Dropbox/Graph4Bio/Bio4j/bio4j/importGOTitanProperties.properties</graph-location>
<graph-read-only>false</graph-read-only>
<properties>
<storage.backend>local</storage.backend>
<storage.directory>/Users/Phoenix/Dropbox/Graph4Bio/Bio4j/bio4j</storage.directory>
<buffer-size>100</buffer-size>
</properties>
<extensions>
<allows>
<allow>tp:frames</allow>
</allows>
</extensions>
</graph>
...
</graphs>
Я получил эти ошибки:
$ ../../bin/rexster.sh --start
0 [main] INFO com.tinkerpop.rexster.Application - .:Welcome to Rexster:.
90 [main] INFO com.tinkerpop.rexster.server.RexsterProperties - Using [/Users/Phoenix/Dropbox/Graph4Bio/Titan/rexhome/config/rexster.xml] as configuration source.
97 [main] INFO com.tinkerpop.rexster.Application - Rexster is watching [/Users/Phoenix/Dropbox/Graph4Bio/Titan/rexhome/config/rexster.xml] for change.
232 [main] WARN com.tinkerpop.rexster.config.GraphConfigurationContainer - Could not load graph bio4j. Please check the XML configuration.
233 [main] WARN com.tinkerpop.rexster.config.GraphConfigurationContainer - GraphConfiguration could not be found or otherwise instantiated: [com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration]. Ensure that it is in Rexster's path.
com.tinkerpop.rexster.config.GraphConfigurationException: GraphConfiguration could not be found or otherwise instantiated: [com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration]. Ensure that it is in Rexster's path.
at com.tinkerpop.rexster.config.GraphConfigurationContainer.getGraphFromConfiguration(GraphConfigurationContainer.java:142)
at com.tinkerpop.rexster.config.GraphConfigurationContainer.<init>(GraphConfigurationContainer.java:54)
at com.tinkerpop.rexster.server.XmlRexsterApplication.reconfigure(XmlRexsterApplication.java:99)
at com.tinkerpop.rexster.server.XmlRexsterApplication.<init>(XmlRexsterApplication.java:47)
at com.tinkerpop.rexster.Application.<init>(Application.java:97)
at com.tinkerpop.rexster.Application.main(Application.java:189)
Caused by: java.lang.IllegalArgumentException: Could not find implementation class: local
at com.thinkaurelius.titan.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:47)
at com.thinkaurelius.titan.diskstorage.Backend.getImplementationClass(Backend.java:421)
at com.thinkaurelius.titan.diskstorage.Backend.getStorageManager(Backend.java:361)
at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1275)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:93)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:73)
at com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration.configureGraphInstance(TitanGraphConfiguration.java:33)
at com.tinkerpop.rexster.config.GraphConfigurationContainer.getGraphFromConfiguration(GraphConfigurationContainer.java:124)
... 5 more
Caused by: java.lang.ClassNotFoundException: local
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.thinkaurelius.titan.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:42)
... 12 more
235 [main] WARN com.tinkerpop.rexster.config.GraphConfigurationContainer - Could not find implementation class: local
java.lang.IllegalArgumentException: Could not find implementation class: local
at com.thinkaurelius.titan.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:47)
at com.thinkaurelius.titan.diskstorage.Backend.getImplementationClass(Backend.java:421)
at com.thinkaurelius.titan.diskstorage.Backend.getStorageManager(Backend.java:361)
at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1275)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:93)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:73)
at com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration.configureGraphInstance(TitanGraphConfiguration.java:33)
at com.tinkerpop.rexster.config.GraphConfigurationContainer.getGraphFromConfiguration(GraphConfigurationContainer.java:124)
at com.tinkerpop.rexster.config.GraphConfigurationContainer.<init>(GraphConfigurationContainer.java:54)
at com.tinkerpop.rexster.server.XmlRexsterApplication.reconfigure(XmlRexsterApplication.java:99)
at com.tinkerpop.rexster.server.XmlRexsterApplication.<init>(XmlRexsterApplication.java:47)
at com.tinkerpop.rexster.Application.<init>(Application.java:97)
at com.tinkerpop.rexster.Application.main(Application.java:189)
Caused by: java.lang.ClassNotFoundException: local
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.thinkaurelius.titan.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:42)
... 12 more
244 [main] INFO com.tinkerpop.rexster.server.metrics.HttpReporterConfig - Configured HTTP Metric Reporter.
245 [main] INFO com.tinkerpop.rexster.server.metrics.ConsoleReporterConfig - Configured Console Metric Reporter.
1312 [main] INFO com.tinkerpop.rexster.server.HttpRexsterServer - HTTP/REST thread pool configuration: kernal[4 / 4] worker[8 / 8]
1313 [main] INFO com.tinkerpop.rexster.server.HttpRexsterServer - Using org.glassfish.grizzly.strategies.LeaderFollowerNIOStrategy IOStrategy for HTTP/REST.
1399 [main] INFO com.tinkerpop.rexster.server.HttpRexsterServer - Rexster Server running on: [http://localhost:8182]
1399 [main] INFO com.tinkerpop.rexster.server.RexProRexsterServer - Using org.glassfish.grizzly.strategies.LeaderFollowerNIOStrategy IOStrategy for RexPro.
1399 [main] INFO com.tinkerpop.rexster.server.RexProRexsterServer - RexPro thread pool configuration: kernal[4 / 4] worker[8 / 8]
1402 [main] INFO com.tinkerpop.rexster.server.RexProRexsterServer - Rexster configured with [DefaultSecurity].
1403 [main] INFO com.tinkerpop.rexster.server.RexProRexsterServer - RexPro Server bound to [0.0.0.0:8184]
1412 [main] INFO com.tinkerpop.rexster.server.ShutdownManager - Bound shutdown socket to /127.0.0.1:8183. Starting listener thread for shutdown requests.
и вот файл БД .properties:
$ nano importGOTitanProperties.properties
#ImportGOTitan properties
storage.directory=bio4j
storage.backend=berkeleyje
#index.search.backend=elasticsearch
#index.search.directory=bio4j/es
storage.batch-loading=false
storage.transactions=true
query.fast-property=false
schema.default=none