Session closing slow on Memgraph 2.12.x with Neo4j Java driver

[antejavor]

Memgraph version Memgraph 2.12 and Memgraph 2.12.1

Environment Docker Memgraph and platform

Describe the bug Session closing is slow compared to execution of a query:

2.12 Memgraph Platform (it is similar for pure Memgraph):

Session open + execution time in seconds: 0.12970075
Session closed and executed after 6.402134709

Memgraph 2.12.1 Memgraph platform (it is similar for pure Memgraph):

Session open + execution time in seconds: 0.099575875
Session closed and executed after 1.92729075

To Reproduce Start Memgraph: docker run -it -p 7687:7687 -p 7444:7444 --name memgraph-stream-test memgraph/memgraph --also-log-to-stderr=TRUE --log-level=TRACE

Prepare Memgraph: UNWIND range(0, 500000) AS id CREATE (n:Node {compoundKey: id}); CREATE INDEX ON :Node(compoundKey);

Edit the manifest for driver:

<dependencies>
    <dependency>
        <groupId>org.neo4j.driver</groupId>
        <artifactId>neo4j-java-driver</artifactId>
        <version>5.13.0</version>
    </dependency>
</dependencies>

Run the following code sample:

package org.example;
import org.neo4j.driver.*;

import java.util.*;

public class HelloWorldExample implements AutoCloseable {
    private final Driver driver;

    public HelloWorldExample(String uri, String user, String password) {
        driver = GraphDatabase.driver(uri, AuthTokens.basic(user, password));
    }

    @Override
    public void close() throws RuntimeException {
        driver.close();
    }

    public void getByKeys(Collection<String> keys) {
        long startTime = System.nanoTime();
        try (Session session = driver.session()) {

            Map<String, Object> params = new HashMap<>();
            params.put("ids", keys);
            final String query = """
                MATCH (o:Node)
                WHERE o.compoundKey IN $ids
                RETURN o
                """;
            Result result = session.run(query, params);
            long endTime = System.nanoTime();
            double duration = (endTime - startTime) / 1_000_000_000.0;
            System.out.println("Session open + execution time in seconds: " + duration);
        }
        long session_end = System.nanoTime();
        double duration_session = (session_end - startTime) / 1_000_000_000.0;
        System.out.println("Session closed and executed after " + duration_session);
    }

    public static void main(String... args) {
        try (var runner = new HelloWorldExample("bolt://localhost:7687", "", "")) {
            Collection<String> keys = new ArrayList<>();
            for (int i = 0; i < 180; i++) {
                double key = i / 180.0;
                keys.add(String.valueOf(key));
            }
            runner.getByKeys(keys);
        }
    }
}

Expected behavior Session close is slow, and it confuses users that query execution is slow

[antejavor]

I am currently not sure how big an issue this is across the available drivers, or if this is a specific edge case query + session issue, hence the given priorities.