Do you have properties on edges?

Lvc@



On 24 December 2013 11:19, Siarhei Liashkevich <[email protected]> wrote:

> Thanks Luca,
>
> I will try to check this in new version as soon as it becomes available.
> But, as for now, what is the recommended approach to import such big graph
> with many to many relationships? Just do .save() for each edge and wait a
> little bit more for converter to finish?
>
>
> 2013/12/24 Luca Garulli <[email protected]>
>
>> Hi Sriarhei,
>> OrientDB privileges the traversal rather than insertion speed, because in
>> 90% of the cases users do a massive import once and then use the database
>> mostly on lookups.
>>
>> However we're working to the new implementation of 1-N relationships mush
>> faster. This will impact edge creation speed a lot. It should be available
>> on 2.0-SNAPSHOT in few days.
>>
>> Lvc@
>>
>>
>>
>> On 23 December 2013 21:32, Siarhei Liashkevich <[email protected]> wrote:
>>
>>> Hi All,
>>>
>>>  I am trying to import really big data into OrientDB 1.6.2. Result
>>> graph will include about 11M of vertexes and about 40M of edges with a lot
>>> of many-to-many relationships. Currently my data stored in the CSV files,
>>> linked via 'common' ids (to link vertexes together). To populate OrientDB
>>> with data I am using self-written Java parser/convertor
>>> (pure com.orientechnologies.orient.core.*, no blueprints).
>>> Everything goes smoothly with vertexes, I can import them in a moderate
>>> time as well as create 'common' index, so lookup (by 'common' id) is no a
>>> problem. Edge creation went too slow. It took from 1 to 20 milliseconds to
>>> create one edge (and looks like the time is growing), so the converter
>>> can't finish the job in a moderate time. I read some post from this mail
>>> thread, so I did an attempt to .save() not edges but nodes (all nodes at
>>> the end, I don't have anything like root node), set OIntentMassiveInsert or
>>> not to set it - no luck.
>>>
>>> So, the question is - does anybody knows the way to import such
>>> configuration into OrientDB via Java converter ?
>>>
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>
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