La base de datos incorporada Neo4j se bloquea después de la finalización anormal de la aplicación

Question

Jul 26, 2015, 08:11 PM

neo4j graph-databases cypher spring-data-neo4j

La base de datos incorporada Neo4j se bloquea después de la finalización anormal de la aplicación

Voy a hacer pública mi primera aplicación basada en la base de datos Neo4j Embedded y me encontré con un grave problema de bloqueo:

Esta es mi pregunta anterior con la eliminación de la base de datos donde me enfrento a este problemaEfectivamente limpiar la base de datos Neo4j

Yo suelo:

OS: Windows 8.1
jdk1.8.0_51 
neo4j version 2.2.3
lucene version 3.6.2
spring-data-neo4j version 3.4.0.M1

Noté que todo funciona correctamente si usographDatabaseService.shutdown(); método antes de finalizar mi aplicación. De lo contrario, la base de datos se destruye (no solo mi aplicación sino incluso el servidor Neo4j también se cuelga en esta base de datos corrupta cuando intento cargar mi base de datos integrada con la interfaz web de Neo4j).

¿Hay alguna forma de hacer que la base de datos integrada Neo4j sea más tolerante a fallas? Perderé todos mis datos después del primer error (por ejemplo, apagón) en el entorno de producción.

Pasé unos días en este tema pero todavía no tengo idea de cómo proceder. Por favor ayuda.

ACTUALIZADO

información de message.log

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2015-07-27 08:51:59.305+0000 INFO  [o.n.k.i.DiagnosticsManager]: --- STARTED diagnostics for KernelDiagnostics:StoreFiles END ---
2015-07-27 08:51:59.378+0000 INFO  [o.n.k.EmbeddedGraphDatabase]: Database is now ready
2015-07-27 08:52:02.592+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 399ms.
2015-07-27 08:52:08.474+0000 INFO  [o.n.k.i.a.i.s.OnlineIndexSamplingJob]: Sampled index :Criterion(name) with 18159 unique values in sample of avg size 18159 taken from index containing 18159 entries
2015-07-27 08:52:11.514+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 354ms.
2015-07-27 08:52:13.692+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 336ms.
2015-07-27 08:52:18.760+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 3728ms.
2015-07-27 08:52:18.764+0000 INFO  [o.n.k.i.a.i.s.OnlineIndexSamplingJob]: Sampled index :CriterionGroup(name) with 1691 unique values in sample of avg size 1691 taken from index containing 1691 entries
2015-07-27 08:52:19.951+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 490ms.
2015-07-27 08:52:25.130+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 4476ms.
2015-07-27 08:52:26.492+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 761ms.
2015-07-27 08:52:33.603+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 5408ms.
2015-07-27 08:52:35.734+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 809ms.
2015-07-27 08:52:43.564+0000 WARN  [o.n.k.EmbeddedGraphDatabase]: GC Monitor: Application threads blocked for 5601ms.

Durante la operación de eliminación, la aplicación se cuelgatx.close(); línea:

public class Neo4jUtils {

    final static Logger logger = LoggerFactory.getLogger(Neo4jUtils.class);

    private static final int BATCH_SIZE = 10;

    public static void cleanDb(Neo4jTemplate template) {
        logger.info("Cleaning database");
        long deletedNodesCount = 0;
        do {
            GraphDatabaseService graphDatabaseService = template.getGraphDatabaseService();
            Transaction tx = graphDatabaseService.beginTx();
            try {
                Result<Map<String, Object>> result = template.query("MATCH (n) WITH n LIMIT " + BATCH_SIZE + " OPTIONAL MATCH (n)-[r]-() DELETE n, r RETURN count(n) as count", null);
                deletedNodesCount = (long) result.single().get("count");
                tx.success();
                logger.info("Deleted " + deletedNodesCount + " nodes...");
            } catch (Throwable th) {
                logger.error("Error while deleting database", th);
                throw th;
            } finally {
                tx.close();
            }
        } while (deletedNodesCount > 0);
    }

}

ACTUALIZADO

Encontré la fuente general de este problema, pero no tengo idea en este momento cómo solucionarlo.

Este es miWebSecurityConfig:

@Configuration
@EnableWebSecurity
@EnableWebMvcSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {


    @Autowired
    private SocialAuthenticationSuccessHandler socialAuthenticationSuccessHandler;

    @Autowired
    private TokenAuthenticationService tokenAuthenticationService;

    @Autowired
    private TokenAuthenticationFilter tokenAuthenticationFilter;

    @Autowired
    private DBUserDetailsService userDetailsService;

.....

}

Autoconecté 4 campos que usan internamente Neo4j (DAO, repositorios, etc.). Neo4j se cuelga en el reinicio después de un cierre sucio cuando estos campos están presentes dentro de mi WebSecurityConfig. Cuando comento estos campos, el problema desaparece.

Qué puede estar mal ?

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