Question

我正在尝试运行连接到PostgreSQL数据库的Spring Boot应用程序，但是它卡住了，什么也没发生。 HikariPool-1-正在启动...出现在日志中，然后什么也没有发生。我将Postgres DB部署为docker映像，但是当我尝试重新启动数据库时，它也卡住了并且无法重新启动。日志中出现的问题是：统计信息而不是当前统计信息，因为统计信息收集器没有响应

也许它与大型I / O有关，因为有时我需要一次获取至少65000行数据，并在后端添加分页。由于应该有很多工作要做，因此服务器可能过载。而且我在日志中发现了一个异常，该异常是使用陈旧的“统计信息而不是当前统计信息，因为统计信息收集器没有响应”，这通常是由数据库过载导致的。

LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding
LOG: using stale statistics instead of current ones because stats collector is not responding

postgres日志

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <springfox-swagger.version>2.9.2</springfox-swagger.version>
        <jjwt.version>0.9.0</jjwt.version>
        <postgresql.version>9.4-1206-jdbc42</postgresql.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>${postgresql.version}</version>
        </dependency>
        <!--<dependency>-->
            <!--<groupId>com.h2database</groupId>-->
            <!--<artifactId>h2</artifactId>-->
            <!--<scope>runtime</scope>-->
        <!--</dependency>-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.22</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${springfox-swagger.version}</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>${springfox-swagger.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>${jjwt.version}</version>
        </dependency>

    </dependencies>

我的pom.xml：

spring.datasource.username=${POSTGRES_USER:postgres}
spring.datasource.password=${POSTGRES_PASSWORD:123}
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.platform=postgres
# Keep the connection alive if idle for a long time (needed in production)
spring.datasource.testWhileIdle=true
spring.datasource.validationQuery=SELECT 1
# ===============================
# = JPA / HIBERNATE
# ===============================
spring.jpa.generate-ddl=false
# Show or not log for each sql query
spring.jpa.show-sql=true
# Hibernate ddl auto (create, create-drop, update): with "create-drop" the database
# schema will be automatically created afresh for every start of application
spring.jpa.hibernate.ddl-auto=validate

# Naming strategy
spring.jpa.hibernate.naming.implicit-strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyHbmImpl
spring.jpa.hibernate.naming.physical-strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy
#disable exceptions
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false


# Allows Hibernate to generate SQL optimized for a particular DBMS
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect

spring.jackson.serialization.WRITE_DATES_AS_TIMESTAMPS = false
spring.jackson.date-format = com.fasterxml.jackson.databind.util.ISO8601DateFormat

我的apllication.properties：

{{1}}

如何解决此问题？基本上我认为是因为连接池泄漏，任何人都有经验吗？在春季，有没有一种好的方法来设计具有大量数据请求的静态API？

Spring Boot应用程序卡在“ Hikari-Pool-1-正在启动...”上

0 个答案: