Cannot update the record because the version is not the latest

Hi,

This is probably a very old question, but slightly different in my case and haven’t found answer in group, so post it again.

Following is my code snippet.

1. With blueprints

    @Test
    public void testTransaction() {
        OrientGraph graph = new OrientGraph("remote:localhost/tmp", "admin", "admin");

        Vertex a = null;
        try {
            a = graph.addVertex(null);
            graph.stopTransaction(TransactionalGraph.Conclusion.SUCCESS);
        } catch (Exception e) {
            graph.stopTransaction(TransactionalGraph.Conclusion.FAILURE);
            e.printStackTrace();
        }

        try {
            for (int i = 0; i < 100; ++i) {
                graph.addEdge(null, graph.addVertex(null), a, "");
            }
            graph.stopTransaction(TransactionalGraph.Conclusion.SUCCESS);
        } catch (Exception e) {
            graph.stopTransaction(TransactionalGraph.Conclusion.FAILURE);
            e.printStackTrace();
        }

        try {
            Vertex b = graph.addVertex(null);
            graph.addEdge(null, b, a, "");
            graph.stopTransaction(TransactionalGraph.Conclusion.SUCCESS);
        } catch (Exception e) {
            graph.stopTransaction(TransactionalGraph.Conclusion.FAILURE);
            e.printStackTrace();
        } finally {
            graph.shutdown();
        }
    }

1. Without blueprints

    @Test
    public void testTransactionNative() {
        OGraphDatabase db = new OGraphDatabase("remote:localhost/tmp");
        db.open("admin", "admin");

        ODocument a = null;
        try {
            db.begin(OTransaction.TXTYPE.OPTIMISTIC);

            a = db.createVertex().save();

            db.commit();
        } catch (Exception e) {
            db.rollback();
            e.printStackTrace();
        }

        try {
            db.begin(OTransaction.TXTYPE.OPTIMISTIC);

            for (int i = 0; i < 100; ++i) {
                db.createEdge(db.createVertex().save(), a.save()).save();
            }

            db.commit();
        } catch (Exception e) {
            db.rollback();
            e.printStackTrace();
        }

        try {
            db.begin(OTransaction.TXTYPE.OPTIMISTIC);

            db.createEdge(db.createVertex().save(), a.save()).save();

            db.commit();
        } catch (Exception e) {
            db.rollback();
            e.printStackTrace();
        } finally {
            db.close();
        }
    }

Both versions I will get exception when committing the third transaction like: om.orientechnologies.orient.core.exception.OConcurrentModificationException: Cannot UPDATE the record #7:4 because the version is not the latest. Probably you are updating an old record or it has been modified by another user (db=v2 your=v1)

The problem here is “a” actually, when I create the edge, if I try to “save” it again, then I will get the above exception; while if not, everything is fine.

But in blueprints, “a” will always be saved:

public Edge addEdge(final Object id, final Vertex outVertex, final Vertex inVertex, final String label) {
        // ...

        // SAVE THE VERTICES TO ASSURE THEY ARE IN TX
        db.save(((OrientVertex) outVertex).getRawElement());
        db.save(((OrientVertex) inVertex).getRawElement());
        edge.save();
        return edge;
    }

I’ve tried to disable level1 and level2 cache, and disable mvcc, but nothing works.

How can I solve this problem? Or is it not expected to use a vertex/edge created in another transaction?

[Tushavi]

Hi @maggiolo00 , I upgraded the version to 3.04, it works way better now. There are very infrequent instances, when i get the same error, but the gremlin requests are not freezing now.

[Tushavi]

I am having a similar error. I am using orientDB-tp3-3.0.2 and gremlin_python to connect to orientdb and run queries. I open a thread from the python application (only 1 thread), it runs all gremlin queries sequentially.

Right now I am testing with 3 vertices and 2 edges creation. I successfully create the 3 vertices and am able to create the first edge. The second edge creation throws the error : 500: Cannot UPDATE the record #23:8 because the version is not the latest. Probably you are updating an old record or it has been modified by another user (db=v2 your=v1)

I also get a similar error when I try to drop the graph. I use : > g.E().drop().iterate() - works fine > g.V().drop().iterate() - throws error > g.V().drop().iterate() - works fine after a few tries and after trying some other queries in between