Neo4j

dansolnik · 11-02-2020

Hello! I was wondering if I explicitly acquire a read lock then use the node, will the transaction drop the lock? I tried running a test for this but for some reason when I tried to run more than 2 cypher queries in a transaction using neo4j sandbox,...

dansolnik · 11-04-2020

Thank you for your help!

dansolnik · 11-04-2020

I just gave it another try and it worked this time! There must have been something wrong with the sandbox I had. The answer, for all those curious, is that the lock is held throughout the whole transaction. It is only released when the transaction is...

dansolnik · 11-04-2020

Specifically, I run the following code on my computer: from neo4j import GraphDatabase, basic_auth def fn(tx): tx.run("MATCH (m: E) call apoc.lock.read.nodes([a]) RETURN NULL").consume() print("point 1") tx.run("MATCH (m: E) RETURN m.pr...

dansolnik · 11-04-2020

Thank you! I have already read through that page. That's actually what helped me come up with the test case. I was unable to run the test case on the sandbox and I do not have access to enterprise edition of neo4j.

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Question about how to explicitly acquire a read lock for a transaction

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