Head's Up! These forums are read-only. All users and content have migrated. Please join us at community.neo4j.com.
01-09-2023 02:51 PM
I'm receiving the following exception while connecting to Neo4j Desktop.
Caused by: org.neo4j.driver.exceptions.ServiceUnavailableException: Connection pool for server localhost:7687 is closed while acquiring a connection.
at org.neo4j.driver.internal.async.pool.ConnectionPoolImpl.processAcquisitionError(ConnectionPoolImpl.java:229) ~[neo4j-java-driver-4.4.11.jar:4.4.11-7d3fdc18543dae49c0c337b2885771b4f38a288d]
at org.neo4j.driver.internal.async.pool.ConnectionPoolImpl.lambda$acquire$0(ConnectionPoolImpl.java:130) ~[neo4j-java-driver-4.4.11.jar:4.4.11-7d3fdc18543dae49c0c337b2885771b4f38a288d]
at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:930) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:907) ~[na:na]
... 15 common frames omitted
Caused by: java.lang.IllegalStateException: FixedChannelPool was closed
at org.neo4j.driver.internal.shaded.io.netty.channel.pool.FixedChannelPool$AcquireListener.operationComplete(FixedChannelPool.java:419) ~[neo4j-java-driver-4.4.11.jar:4.4.11-7d3fdc18543dae49c0c337b2885771b4f38a288d]
I'm doing this from a test. Here's the source to my test.
package com.adobe.cos.model.composite.sample;
import com.adobe.cos.model.composite.EntityNode;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.neo4j.driver.AuthTokens;
import org.neo4j.driver.Driver;
import org.neo4j.driver.GraphDatabase;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.neo4j.config.AbstractReactiveNeo4jConfig;
import org.springframework.data.neo4j.core.ReactiveNeo4jTemplate;
import org.springframework.data.neo4j.repository.config.EnableReactiveNeo4jRepositories;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import reactor.core.publisher.Mono;
import java.util.Collection;
import java.util.Collections;
@ExtendWith(SpringExtension.class)
@SpringBootTest(classes = {SampleApplicationTests.Config.class})
public class SampleApplicationTests {
@Configuration
@EnableReactiveNeo4jRepositories(considerNestedRepositories = true)
@EnableTransactionManagement
static class Config extends AbstractReactiveNeo4jConfig {
@Bean
public Driver driver() {
return GraphDatabase.driver("bolt://localhost:7687", AuthTokens.basic("neo4j", "password"));
}
@Override
protected Collection<String> getMappingBasePackages() {
return Collections.singletonList(EntityNode.class.getPackage().getName());
}
}
@Test
void templateTest(@Autowired ReactiveNeo4jTemplate reactiveNeo4jTemplate) {
reactiveNeo4jTemplate.findAll(EntityNode.class)
.flatMap(e -> {
System.out.printf("entityId=%s\n", e.getAssetId());
return Mono.just(e);
})
.subscribe();
}
}
It's pretty straight forward. I have Neo4j Desktop running locally. Has anyone seen this or have any clues as to what might be going on?
I've set breakpoints in the test. It makes it to the first line. The driver appears to have been created.
All the sessions of the conference are now available online