如何在Neo4j中插入JSON批量数据？

Question

I am having trouble inserting a large number of JSON data in Neo4j

If I insert more data in Neo4j means it will take more time to run it and makes my performance very slow and I have to wait for 10-15 mins for the complete process of insertion.

Is there any solution or any suggestion on how to insert bulk data? I have used merge query while inserting the JSON data and there is no unique value so I picked some combinations to make object model in merge query.

dir_port sym_dev ini_tiator_group_name host_lun sym_metrix_id

( There is no unique constraint in this query to get object model we have used combinations of values I have mentioned above )

This is my query:

CALL apoc.load.json('file:<path>')YIELD value AS row   
    UNWIND row.symdev AS symdevs    
    MERGE (accesssymdev:symaccess_symdev {
      sym_dev:symdevs.sym_dev,  
      ini_tiator_group_name:symdevs.ini_tiator_group_name,  
      host_lun:symdevs.host_lun,  
      symid:symdevs.sym_metrix_id,  
      dir_port:symdevs.dir_port
    })   
    ON CREATE SET   
      accesssymdev.attr_percentage = symdevs.attr_percentage,  
      accesssymdev.cap_mb = toFloat(symdevs.cap_mb),  
      accesssymdev.physicaldevicename = symdevs.physicaldevicename;   

This is my sample JSON value:

 { "dir_port": "011:000", "attr_percentage": "(m)", "sym_metrix_id": "123456", "sym_dev": "05467", "ini_tiator_group_name": "cluster_abcdefgh_mnop_sss1", "host_lun": "52", "cap(mb)": "246369", " physicaldevicename": "not visible" }, { "dir_port": "001:000", "attr_percentage": "(m)", "sym_metrix_id": "123456", "sym_dev": "03as1", "ini_tiator_group_name": "cluster_abcdefgh_mnop_sss1", "host_lun": "54", "cap(mb)": "210000", " physicaldevicename": "not visible" }, 

Answer 1

If you don't have a node Key or an index or a constraint on your MERGE , then more data you will have, more time the MERGE will take.

In your case, the best is to create a node key : CREATE CONSTRAINT ON (n:symaccess_symdev) ASSERT (n.sym_dev, n.ini_tiator_group_name, n.host_lun, n.symid, n.dir_port) IS NODE KEY