Re: Not all nodes are created

[Sankrant Chaubey]

I am sorry for the last message, my hand slipped.

I was trying to create n number of nodes with a python loop

for i in range(100):
    z = "CREATE (:percent { percent: " + str(i) + "})"
    session.run(z)

but only 64 nodes were created. I figured that it might be due to python loop sending info faster than neo4j can process, so I added a time.sleep(0.1); I got all the nodes after that but it is causing a lot of extra latency in data upload we do not want. What is the optimal way to create a lot of nodes.

Sorry for the broken english and bad first post, its the first time I was posting

Thanks,

Sankrant 

On Wed, Jun 13, 2018 at 11:06 AM, Sankrant Chaubey <sankrant...@gmail.com> wrote:

Hi,

I am trying to create say 100 nodes with a python loop like this:

for i in range(100):
    z = "CREATE (:percent { percent: " + str(i) + "})"
    print z
session.run(z)

[Michael Hunger]

1. you need also consume the session.run() results

2. use parameters, not string concatenation

3. it's better to create an array in python and uses UNWIND in Cypher, see https://medium.com/@mesirii/5-tips-tricks-for-fast-batched-updates-of-graph-structures-with-neo4j-and-cypher-73c7f693c8cc

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[Sankrant Chaubey]

Thank you very much!