LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'

[CodeWorldTeam]

Hi, We are facing this Issue in Our Sping boot app from few days, we tried all RnD not able to find any Solution.
Once we deploy our application it gets shut down automatically, sometimes within next 15 mins and sometimes in a day.
we are not able to trace the exact problem.
Here is the Log

2024-04-25T13:23:47.817+05:30  INFO 343404 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2024-04-25T13:23:47.826+05:30  INFO 343404 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2024-04-25T13:23:47.832+05:30  INFO 343404 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.

Here is our pom.xml file

_
4.0.0

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.1.2</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<groupId>com.example</groupId>
<artifactId>ZerosERP</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>ZerosERP</name>
<description>Demo project for Spring Boot</description>

<properties>
    <java.version>17</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session-core</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>com.mysql</groupId>
        <artifactId>mysql-connector-j</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.modelmapper</groupId>
        <artifactId>modelmapper</artifactId>
        <version>3.1.1</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-freemarker</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
    <dependency>
        <groupId>com.lowagie</groupId>
        <artifactId>itext</artifactId>
        <version>2.1.7</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.xhtmlrenderer</groupId>
        <artifactId>flying-saucer-pdf-openpdf</artifactId>
        <version>9.1.22</version> <!-- Use the latest version available -->
    </dependency>
    <dependency>
        <groupId>ognl</groupId>
        <artifactId>ognl</artifactId>
        <version>3.4.2</version>
    </dependency>
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-api</artifactId>
        <version>0.11.5</version>
    </dependency>
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-impl</artifactId>
        <version>0.11.5</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-jackson</artifactId>
        <version>0.11.5</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-redis</artifactId>
        <version>1.5.0.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.phonepe</groupId>
        <artifactId>pg-sdk-java</artifactId>
        <version>1.1.0</version>
    </dependency>
</dependencies>

<repositories>
    <repository>
        <id>io.cloudrepo</id>
        <name>PhonePe JAVA SDK</name>
        <url>https://phonepe.mycloudrepo.io/public/repositories/phonepe-pg-sdk-java</url>
    </repository>
</repositories>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

_

[wilkinsona]

Those logs are typical for the shutdown of an application that's using Hibernate and, unfortunately, they don't provide any hints about the cause of the problem.

sometimes within next 15 mins and sometimes in a day

One typical cause of this is Linux's out of memory killer. You haven't said if you're running on Linux, but if you are you can verify if that's the case by monitoring your application's memory usage and the OS's free memory. There should also be something in the system logs indicating that a process has been killed due to the OS running low on memory.

[spring-projects-issues]

If you would like us to look at this issue, please provide the requested information. If the information is not provided within the next 7 days this issue will be closed.

[CodeWithMohamed]

I've been following the discussion about the unexpected shutdowns of your Spring Boot application. This seems like a complex issue

Have you checked the system logs for signs that the out-of-memory killer has been activated? This is often logged in dmesg or /var/log/syslog on Linux systems.?

Could you observe any repetitive actions or behaviors in the app just before it shuts down, such as intensive data operations or any scheduled tasks?