使用hikaricp在表上看到锁争用

Question

我已使用以下设置配置了连接池。应用程序似乎表现异常。当应用程序在tomcat上运行时，我无法使用sqldeveloper或任何sql客户端更新任何表。我在oracle企业管理器中看到争用锁。应用程序使用的是hikaricp 2.4.6，oracle 11g，spring数据jpa和hibernate 5.2.9.Final

db.connection.maximumPoolSize=30
db.connection.minimumIdleConnections=10
db.connection.leakDetectionThreshold=2000
db.connection.idleTimeout=600000
db.connection.maxLifetime=1800000

@Configuration
@EnableJpaRepositories(basePackages = "test.api.repositories")
@EnableTransactionManagement
@Slf4j
@EnableCaching
public class JpaConfiguration {

@Autowired
private DatabaseProperties databaseProperties;
@Value("${spring.cache.caffeine.spec:maximumSize=2000,expireAfterWrite=600s,expireAfterAccess=300s}")
private String cacheSpecs;

@Bean
public HikariDataSource dataSource() {
    HikariConfig config = new HikariConfig();
    config.setConnectionTestQuery("SELECT 1 FROM DUAL");
    config.setPoolName("test-pool");        
   config.setDriverClassName(databaseProperties.getConnection().getDriver());
    config.setJdbcUrl(databaseProperties.getConnection().getUrl());
    config.setUsername(databaseProperties.getConnection().getUsername());
    config.setPassword(databaseProperties.getConnection().getPassword());
    config.setMaximumPoolSize(databaseProperties.getConnection().getMaximumPoolSize());
    config.setMinimumIdle(databaseProperties.getConnection().getMinimumIdleConnections());
    config.setLeakDetectionThreshold(databaseProperties.getConnection().getLeakDetectionThreshold());
    config.setIdleTimeout(databaseProperties.getConnection().getIdleTimeout());
    config.setMaxLifetime(databaseProperties.getConnection().getMaxLifetime());
    config.setRegisterMbeans(true);
    return new HikariDataSource(config);
}

@Bean
public HibernateJpaVendorAdapter hibernateJpaVendorAdapter() {
    return new HibernateJpaVendorAdapter();
}

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    final Properties properties = new Properties();
    final LocalContainerEntityManagerFactoryBean lC = new LocalContainerEntityManagerFactoryBean();
    lC.setDataSource(dataSource());
    lC.setJpaVendorAdapter(hibernateJpaVendorAdapter());
    lC.setPackagesToScan(databaseProperties.getHibernate().getPackagesToScan());

    properties.setProperty("hibernate.hbm2ddl.auto", databaseProperties.getHibernate().getHbm2ddl());
    properties.setProperty("hibernate.dialect", databaseProperties.getHibernate().getDialect());
    properties.setProperty("hibernate.jdbc.batch_size", databaseProperties.getHibernate().getBatchSize());
    properties.setProperty("hibernate.default_schema", databaseProperties.getHibernate().getDefaultSchema());
    properties.setProperty("hibernate.show_sql", String.valueOf(databaseProperties.getHibernate().isShowSql()));
    properties.setProperty("hibernate.cache.use_second_level_cache", String.valueOf(databaseProperties.getHibernate().isUseSecondLevelCache()));
    properties.setProperty("hibernate.cache.use_query_cache", String.valueOf(databaseProperties.getHibernate().isUseQueryCache()));
    properties.setProperty("hibernate.cache.region.factory_class", databaseProperties.getHibernate().getCacheFactoryClass());
    properties.setProperty("javax.persistence.sharedCache.mode", databaseProperties.getHibernate().getSharedCacheMode());
    properties.setProperty("hibernate.connection.characterEncoding", databaseProperties.getHibernate().getCharacterEncoding());
    properties.setProperty("hibernate.connection.CharSet", databaseProperties.getHibernate().getCharSet());
    properties.setProperty("hibernate.connection.useUnicode", databaseProperties.getHibernate().getUseUnicode());
    properties.setProperty("hibernate.connection.defaultNChar", databaseProperties.getHibernate().getConnectionDefaultNChar());

    lC.setJpaProperties(properties);

    return lC;
}