securegraph

[Massi Natale]

I have an error when I try to read data from securegraph. I attach error and code.

I added the "securegraph-accumulo-iterators" in my sbt, I have not found info how use it.

Thanks

Massimo

This is the error:

Exception in thread "main" java.lang.RuntimeException: org.apache.accumulo.core.client.AccumuloSecurityException: Error BAD_AUTHORIZATIONS for user root - The user does not have the specified authorizations assigned

at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.hasNext(TabletServerBatchReaderIterator.java:209)

at org.securegraph.util.LookAheadIterable$1.loadNext(LookAheadIterable.java:43)

at org.securegraph.util.LookAheadIterable$1.hasNext(LookAheadIterable.java:18)

at eu.unicredit.knowledgegraph.Example01_CreateVertex.main(Example01_CreateVertex.java:48)

Caused by: org.apache.accumulo.core.client.AccumuloSecurityException: Error BAD_AUTHORIZATIONS for user root - The user does not have the specified authorizations assigned

at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:709)

at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:369)

at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)

at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)

at java.lang.Thread.run(Thread.java:745)

Caused by: ThriftSecurityException(user:root, code:BAD_AUTHORIZATIONS)

at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$startMultiScan_result$startMultiScan_resultStandardScheme.read(TabletClientService.java:8165)

at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$startMultiScan_result$startMultiScan_resultStandardScheme.read(TabletClientService.java:8142)

at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$startMultiScan_result.read(TabletClientService.java:8081)

at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)

at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:294)

at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:274)

at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:652)

... 7 more

This is my code:

public class Example01_CreateVertex {

private static Logger log = Logger.getLogger(Example01_CreateVertex.class);

public static void main(String[] args) throws Exception {

Graph graph = Util.createLightGraph();

Visibility visA = new Visibility("a");

Visibility visB = new Visibility("b");

Visibility visAandB = new Visibility("a&b");

Authorizations authA = new AccumuloAuthorizations("a");

/* add a vertex with properties */

Vertex v = graph.prepareVertex("Micky Mouse", visAandB)

.setProperty("name", "Micky", visA)

.setProperty("surname", "Mouse", visB).save(authA);

/* add 2 vertex and the edge */

Vertex v1 = graph.addVertex("Micky Mouse", visA, authA);

Vertex v2 = graph.addVertex("Donald Duck", visA, authA);

Edge e = graph.addEdge(v1, v2, "is_friend", visA, authA);

/* add a edge */

               graph.addEdge("edgeId", v1, v, "equal", visA, authA);

System.out.println("--------------- -> end add data");

/* read edges */

Iterable<Edge> edges = v1.getEdges(Direction.BOTH, authA);

for (Edge es : edges) {

System.out.println(es.getLabel());

} // for

/* query a vertex */

Iterable<Vertex> vertices = graph.query("Micky Mouse", authA).vertices();

Iterator<Vertex> ed = vertices.iterator();

System.out.println("--------------- -> end query graph");

graph.flush();

} // main

} // class

[Joe Ferner]

You'll need to first add the a and b authorizations via the accumulo shell (see the addauths command) or the accumulo API.

[Massi Natale]

Thanks Joe. Can you give me a link with an example of how to use the Accumulo API?

Best

Massimo