Exception:

Exception in thread "main" java.lang.reflect.InvocationTargetException

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)

        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)

        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)

        at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:594)

Caused by: java.lang.ExceptionInInitializerError

        at org.onap.aai.dbmap.AAIGraph.getInstance(AAIGraph.java:98)

        at org.onap.aai.dbgen.GenTester.main(GenTester.java:118)

        ... 8 more

Caused by: java.lang.RuntimeException: Failed to instantiate graphs

        at org.onap.aai.dbmap.AAIGraph.<init>(AAIGraph.java:83)

        at org.onap.aai.dbmap.AAIGraph.<init>(AAIGraph.java:55)

        at org.onap.aai.dbmap.AAIGraph$Helper.<clinit>(AAIGraph.java:88)

        ... 10 more

Caused by: java.lang.IllegalArgumentException: Could not instantiate implementation: org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxStoreManager

        at org.janusgraph.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:69)

        at org.janusgraph.diskstorage.Backend.getImplementationClass(Backend.java:477)

        at org.janusgraph.diskstorage.Backend.getStorageManager(Backend.java:409)

        at org.janusgraph.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1376)

        at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:164)

        at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:133)

        at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:113)

        at org.onap.aai.dbmap.AAIGraph.loadGraph(AAIGraph.java:110)

        at org.onap.aai.dbmap.AAIGraph.<init>(AAIGraph.java:80)

        ... 12 more

Caused by: java.lang.reflect.InvocationTargetException

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

        at org.janusgraph.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:58)

        ... 20 more

Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend

        at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxStoreManager.ensureKeyspaceExists(AstyanaxStoreManager.java:619)

        at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxStoreManager.<init>(AstyanaxStoreManager.java:314)

        ... 25 more

Caused by: com.netflix.astyanax.connectionpool.exceptions.PoolTimeoutException: PoolTimeoutException: [host=aai-aai-cassandra-1(aai-aai-cassandra-1):9160, latency=30001(30001), attempts=3]Timed out waiting for connection

        at com.netflix.astyanax.connectionpool.impl.SimpleHostConnectionPool.waitForConnection(SimpleHostConnectionPool.java:231)

        at com.netflix.astyanax.connectionpool.impl.SimpleHostConnectionPool.borrowConnection(SimpleHostConnectionPool.java:198)

        at com.netflix.astyanax.connectionpool.impl.RoundRobinExecuteWithFailover.borrowConnection(RoundRobinExecuteWithFailover.java:84)

        at com.netflix.astyanax.connectionpool.impl.AbstractExecuteWithFailoverImpl.tryOperation(AbstractExecuteWithFailoverImpl.java:117)

        at com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool.executeWithFailover(AbstractHostPartitionConnectionPool.java:352)

        at com.netflix.astyanax.thrift.ThriftClusterImpl.executeSchemaChangeOperation(ThriftClusterImpl.java:146)

        at com.netflix.astyanax.thrift.ThriftClusterImpl.internalCreateKeyspace(ThriftClusterImpl.java:321)

        at com.netflix.astyanax.thrift.ThriftClusterImpl.addKeyspace(ThriftClusterImpl.java:294)

        at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxStoreManager.ensureKeyspaceExists(AstyanaxStoreManager.java:614)