creating records with rid #-1:-2 orientdb graph database?

[gopinath....@gofindo.com]

Hi , 

I have strange problem, When I am creating a vertex with nontrasactional graph object the record is creating with record id i.e rid is #-1:-2 , and creating an edge with same object is resulting with  rid is #-1:-3  . 

I am creating like this code,

OrientVertex vertexObject = graph.addVertex("class:"+ClassProperties.VERTEXCLASSNAME);

if(vertexObject == null){

error.put(Constants.ERROR_KEY, "Bad request.");

return new ResponseEntity<String>(error.toString(), HttpStatus.BAD_REQUEST);

}

vertexObject.setProperty(ClassProperties.PROPERTY_ID, UUID.randomUUID().toString());

vertexObject.setProperty(ClassProperties.PROPERTY_NAME, request.getString(ClassProperties. PROPERTY_NAME));

vertexObject.setProperty(ClassProperties.PROPERTY_DESCRIPTION, request.getString(ClassProperties. PROPERTY_DESCRIPTION));

vertexObject.setProperty(ClassProperties.PROPERTY_SKU, "SKU-"+UUID.randomUUID().toString().substring(1, 7)); 

                                            graph.commit();

and in finally bock

                                          finally {

                                                if(graph != null)

                                                         graph.shutdown();

                                             }

                      

and result is getting like this

1. @class : "className"
2. @fieldTypes:"value=d,created_date=t,updated_date=t,in_HasReward=g"
3. @rid:"#-1:-2"
4. @type:"d"
5. @version:0
6. created_date:"2016-11-14 01:37:00"
7. ... properties what i am trying to insert.
8. 
   
9. 
   
10. I am unable to find the what was the problem. even sometimes creating successfully in mentioned clusters.?
11. I have specified 8 clusters to this class by my java program (while designing vertexType), is that the problem ?
12. 
    
13. 
    
14. 
    

[alessand...@gmail.com]

Hi, 

which version are you using, could you post more code ?

[Naveen Alapati]

Hi,

We are using 2.2.7. thanks.

On Mon, Nov 14, 2016 at 3:20 PM, <alessand...@gmail.com> wrote:

Hi, 

which version are you using ?

--

Cheers,

Naveen Alapati,

Solution Architect | GoFindo

Skype: naveenkumar.alapati

Mobile: +91 77022 52674

[alessand...@gmail.com]

Could you post more code ?

Thanks

[gopinath....@gofindo.com]

That's only the logical code.

Only i missed return statement after the commit() statement. Here I am pasting return statement.

vertexObject.commit();

return new ResponseEntity<String>(vertexObject.getRecord().toJSON(), HttpStatus.OK); 

I have small doubt on creating of GraphFactory , Please suggest is this the right way of creating graphFactory

Here the code I am posting.

and for each controller I am calling factory.getNoTxGraph() method

public class FactoryService {

static Logger logger = Logger.getLogger(FactoryService.class);

public static OrientGraphFactory factory;

static {

logger.info("factory creating");

factory = new OrientGraphFactory(Constants.DATABASE_URL).setupPool(10, 40);

}

public OrientGraphFactory getGraphFactory(){

if(factory == null){

factory = new OrientGraphFactory(Constants.DATABASE_URL).setupPool(10, 40);

}

return factory;

}

public static OrientBaseGraph getNoTxGraph(){

return factory.getNoTx();

}

public  static OrientBaseGraph getTxGraph(){

return factory.getTx();

}

}

Thank you

Gopinath Chilukuri

gopinath....@gofindo.com

[Luigi Dell'Aquila]

Hi Gopinath,

This is a very basic operation and your code seems to be correct, so I suspect there is a problem somewhere else.

Just a couple of questions: 

- are you always using NoTx? In this case, why are you invoking graph.commit()? there is no need for that.

- how do you create your schema? 

- do you have a self-contained test case that reproduces the problem? It will make it much easier to diagnose 

Thanks

Luigi

 

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[gopinath....@gofindo.com]

Hi Luigi,

1. Yes I am using for commit() for notTx() and Tx()  methods. Sometimes I am getting error if i did not put this statement. That is why I added this statement.

 

 my Question :   Is there any problem with using this commit() statement ?

2. I am creating schema (Only class name and with clusters) with java program. Generally I will create schema with OrientStudio web console. there I will specify all the properties and property type. Why I am creating Vertex or Edge class from java is , We can specify number of clusters for that vertex or Edge. If I create through  OrientStudio web console it will allocate only two clusters .

my Question : is there any problem with allocating toomany clusters?

3.  I am not writing any test cases in my program. (note : It is Spring boot rest services )

thanks

Gopinath Chilukuri

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[Luigi Dell'Aquila]

HI Gopinath,

2016-11-16 13:40 GMT+01:00 <gopinath....@gofindo.com>:

Hi Luigi,

1. Yes I am using for commit() for notTx() and Tx()  methods. Sometimes I am getting error if i did not put this statement. That is why I added this statement.

 

 my Question :   Is there any problem with using this commit() statement ?

No, no problem in general, a commit() on a noTx() graph has no effect. My question is only because negative RIDs represent records that are just created and not committed yet, so I was wondering if there is a problem there.

 

2. I am creating schema (Only classanem and with clusters) with java program. Generally I will create schema with OrientStudio web console. there I will specify all the properties and property type. Why I am creating Vertex or Edge class from java is , We can specify number of clusters for that vertex of Edge. If I create through  OrientStudio web console it will allocate only two clusters .

my Question : is there any problem with allocating toomany clusters?

There is a limitation to 32k clusters per db, but apart from this there is no problem in using many clusters.

 

3.  I am not writing any test cases in my program. (note : It is Spring boot rest services )

Ok, do you think you can extract the application logic in a simple piece of code that I can run to reproduce the problem?

 

thanks

Gopinath Chilukuri

Thanks

Luigi

 

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