[jira] [Updated] (FALCON-1984) Provide proper hint and documentation if required titan storage backend is not configurated in startup.properties

["Ying Zheng (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FALCON-1984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ying Zheng updated FALCON-1984:
-------------------------------
    Summary: Provide proper hint and documentation if required titan storage backend is not configurated in startup.properties  (was: Provide proper hint and documentation if required graph storage backend is not set in startup.properties)

> Provide proper hint and documentation if required titan storage backend is not configurated in startup.properties
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: FALCON-1984
>                 URL: https://issues.apache.org/jira/browse/FALCON-1984
>             Project: Falcon
>          Issue Type: Bug
>            Reporter: Ying Zheng
>            Assignee: Ying Zheng
>
> We require the user to choose either HBase or BDB as titan storage backend, which is not set by default in startup.properties. The current Falcon only shows the following error in the log if the user doesn't configure the storage backend and start falcon with default startup.properties. This is not intuitive for the user to understand the server start error. Should provide proper hint and documentation.
> {code}
> 2016-05-26 02:24:07,419 ERROR - [main:] ~ Failed to initialize service org.apache.falcon.metadata.MetadataMappingService (ServiceInitializer:49)
> java.lang.RuntimeException: GraphFactory could not instantiate this Graph implementation [com.thinkaurelius.titan.core.TitanFactory].
> 	at com.tinkerpop.blueprints.GraphFactory.open(GraphFactory.java:50)
> 	at org.apache.falcon.metadata.MetadataMappingService.initializeGraphDB(MetadataMappingService.java:123)
> 	at org.apache.falcon.metadata.MetadataMappingService.init(MetadataMappingService.java:90)
> 	at org.apache.falcon.service.ServiceInitializer.initialize(ServiceInitializer.java:47)
> 	at org.apache.falcon.listener.ContextStartupListener.contextInitialized(ContextStartupListener.java:56)
> 	at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:550)
> 	at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
> 	at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
> 	at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:519)
> 	at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
> 	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> 	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
> 	at org.mortbay.jetty.Server.doStart(Server.java:224)
> 	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> 	at org.apache.falcon.util.EmbeddedServer.start(EmbeddedServer.java:57)
> 	at org.apache.falcon.FalconServer.main(FalconServer.java:118)
> Caused by: java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at com.tinkerpop.blueprints.GraphFactory.open(GraphFactory.java:45)
> 	... 15 more
> Caused by: java.lang.IllegalStateException: Need to set configuration value: root.storage.backend
> 	at com.google.common.base.Preconditions.checkState(Preconditions.java:172)
> 	at com.thinkaurelius.titan.diskstorage.configuration.ConfigOption.get(ConfigOption.java:158)
> 	at com.thinkaurelius.titan.diskstorage.configuration.BasicConfiguration.get(BasicConfiguration.java:56)
> 	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)
> 	... 20 more
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)