how is janusgraph data stored in Cassandra


Suny <sahithiy...@...>
 

Can someone explain how janusgraph data is stored in Cassandra ? Are there any specific tables in Cassandra that i can look at for data from janusgraph ?


Kelvin Lawrence <kelvin....@...>
 

Janus graph uses an adjacency list model. Each vertex, its properties and its adjacent edges are stored as a row in Cassandra.

You might find this part of the documentation of use.

http://docs.janusgraph.org/latest/data-model.html

HTH
Kelvin


On Thursday, August 3, 2017 at 3:51:58 PM UTC-5, Suny wrote:
Can someone explain how janusgraph data is stored in Cassandra ? Are there any specific tables in Cassandra that i can look at for data from janusgraph ?


Suny <sahithiy...@...>
 

Thanks,

Under Janusgraph keyspace in cassandra i see some tables with information stored as blob. Is there a way to find the row (containing data from janusgraph) in any table ? 


On Thursday, August 3, 2017 at 5:15:56 PM UTC-4, Kelvin Lawrence wrote:
Janus graph uses an adjacency list model. Each vertex, its properties and its adjacent edges are stored as a row in Cassandra.

You might find this part of the documentation of use.


HTH
Kelvin

On Thursday, August 3, 2017 at 3:51:58 PM UTC-5, Suny wrote:
Can someone explain how janusgraph data is stored in Cassandra ? Are there any specific tables in Cassandra that i can look at for data from janusgraph ?


Jerry He <jerr...@...>
 

The edges and properties are serialized, encoded and optionally compressed in the backend table.  Raw scan on the backend table will not easily show what they are. 
The things you may be able to see in clear text,  for example, are the configuration settings stored in the backend store.

Having said that, I wonder if it is feasible or usable to provide such a tool to look at or examine the raw data in the backend table.

Thanks.

On Friday, August 4, 2017 at 6:53:45 AM UTC-7, Suny wrote:
Thanks,

Under Janusgraph keyspace in cassandra i see some tables with information stored as blob. Is there a way to find the row (containing data from janusgraph) in any table ? 

On Thursday, August 3, 2017 at 5:15:56 PM UTC-4, Kelvin Lawrence wrote:
Janus graph uses an adjacency list model. Each vertex, its properties and its adjacent edges are stored as a row in Cassandra.

You might find this part of the documentation of use.


HTH
Kelvin

On Thursday, August 3, 2017 at 3:51:58 PM UTC-5, Suny wrote:
Can someone explain how janusgraph data is stored in Cassandra ? Are there any specific tables in Cassandra that i can look at for data from janusgraph ?


learnin...@...
 

Is there any enhancement done on this space? I have a requirement to write data in plain text (not binary).


On Friday, August 4, 2017 at 2:21:58 AM UTC+5:30, SY wrote:
Can someone explain how janusgraph data is stored in Cassandra ? Are there any specific tables in Cassandra that i can look at for data from janusgraph ?