java - JHipster 6.0.1 docker-compose 部署 : Java heap space

Question

我有 2 个应用程序。应用程序 1 使用 JHipster 5.8.2，我将其部署到具有 2GB RAM 的 Digital Ocean 的 droplet 中，并将图像推送到 gitlab 的注册表后，我运行它 docker-compose -f app.yml up(有 _JAVA_OPTIONS=-Xmx512m -Xms256m)，一切都在大约 45 秒内完美运行。

App 2 是用 JHipster 6.0.1 生成的(它实际上是我的 App 1 的升级版)。我为我的应用程序 2 使用了应用程序 1 中的类似 droplet:具有 2GB RAM 的单核，但由于 Java 堆空间 而失败。在此之后，我将我的液滴更改为 4GB 2 核心液滴并将我的 app.yml 配置更改为:_JAVA_OPTIONS=-Xmx3072m -Xms2048m 但它仍然因同样的问题而失败并且40 分钟后。

出现此错误后，我尝试在 32GB 的计算机中运行图像，2 1/2 小时后，出现了同样的问题。

这就是我打包 6.0.1 应用程序的方式:

• /mvnw verify -Pprod -DskipTests
• ./mvnw jib:build -Dimage=registry.gitlab.com/amatos/project

在我的 droplet 中:

• docker-compose -f app.yml up -d

这应该可行，但它从未通过 Web application fully configured 行，几分钟后(取决于 RAM 的数量)，它失败了。

我是否缺少额外的步骤？

发现:

经过大量测试后，我发现通过添加自定义 DTO，我遇到了 Java 堆空间问题。

生成的 DTO:

package com.facturapp.service.dto;
import javax.validation.constraints.*;
import java.io.Serializable;
import java.util.Objects;
import javax.persistence.Lob;

/**
 * A DTO for the {@link com.facturapp.domain.Address} entity.
 */
public class AddressDTO implements Serializable {

    private Long id;

    @NotNull
    private String name;

    private String contact;

    private String mobile;

    private String address;

    @Lob
    private String note;

    private Boolean delivery;

    private Boolean invoicing;

    private Boolean active;


    private Long districtId;

    private String districtName;

    private Long partnerId;

    private String partnerName;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getContact() {
        return contact;
    }

    public void setContact(String contact) {
        this.contact = contact;
    }

    public String getMobile() {
        return mobile;
    }

    public void setMobile(String mobile) {
        this.mobile = mobile;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getNote() {
        return note;
    }

    public void setNote(String note) {
        this.note = note;
    }

    public Boolean isDelivery() {
        return delivery;
    }

    public void setDelivery(Boolean delivery) {
        this.delivery = delivery;
    }

    public Boolean isInvoicing() {
        return invoicing;
    }

    public void setInvoicing(Boolean invoicing) {
        this.invoicing = invoicing;
    }

    public Boolean isActive() {
        return active;
    }

    public void setActive(Boolean active) {
        this.active = active;
    }

    public Long getDistrictId() {
        return districtId;
    }

    public void setDistrictId(Long districtId) {
        this.districtId = districtId;
    }

    public String getDistrictName() {
        return districtName;
    }

    public void setDistrictName(String districtName) {
        this.districtName = districtName;
    }

    public Long getPartnerId() {
        return partnerId;
    }

    public void setPartnerId(Long partnerId) {
        this.partnerId = partnerId;
    }

    public String getPartnerName() {
        return partnerName;
    }

    public void setPartnerName(String partnerName) {
        this.partnerName = partnerName;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        AddressDTO addressDTO = (AddressDTO) o;
        if (addressDTO.getId() == null || getId() == null) {
            return false;
        }
        return Objects.equals(getId(), addressDTO.getId());
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(getId());
    }

    @Override
    public String toString() {
        return "AddressDTO{" +
            "id=" + getId() +
            ", name='" + getName() + "'" +
            ", contact='" + getContact() + "'" +
            ", mobile='" + getMobile() + "'" +
            ", address='" + getAddress() + "'" +
            ", note='" + getNote() + "'" +
            ", delivery='" + isDelivery() + "'" +
            ", invoicing='" + isInvoicing() + "'" +
            ", active='" + isActive() + "'" +
            ", district=" + getDistrictId() +
            ", district='" + getDistrictName() + "'" +
            ", partner=" + getPartnerId() +
            ", partner='" + getPartnerName() + "'" +
            "}";
    }
}

自定义DTO

package com.facturapp.service.dto;

import com.facturapp.domain.District;

/**
 * A DTO for the {@link com.facturapp.domain.Address} entity.
 */
public class AddressFaDTO extends AddressDTO {

    private District district;

    public District getDistrict() {
        return district;
    }

    public void setDistrict(District district) {
        this.district = district;
    }
}

自定义 DTO 是 Address 并扩展生成的 DTO。生成的 DTO 有几个字段，其中 2 个是 districtId (Long) 和 districtName (String)，但我的自定义 DTO 也有 district (District)。类 District 有一个属性 Province，它也有 Region，它也有 Country。因此，当我检索 Address 时，我还会得到地区、省、地区和国家/地区。

我的自定义资源调用一个自定义服务，该服务检索我的自定义 DTO 以及学区和所有其他类。

如果我使用生成的 DTO，我没有问题，但是当我使用我的自定义 DTO 时，该应用程序不会运行并且由于 Java 堆空间而失败。

错误日志

facturapp_1  | 2019-06-03 06:56:20.395  INFO 1 --- [  restartedMain] com.almasoft.facturapp.FacturApp         : Starting FacturApp on c40efbe18b21 with PID 1 (/app/classes started by root in /)
facturapp_1  | 2019-06-03 06:56:20.407  INFO 1 --- [  restartedMain] com.almasoft.facturapp.FacturApp         : The following profiles are active: prod,swagger
facturapp_1  | 2019-06-03 06:56:45.918  WARN 1 --- [  restartedMain] i.g.j.c.liquibase.AsyncSpringLiquibase   : Warning, Liquibase took more than 5 seconds to start up!
facturapp_1  | 2019-06-03 06:56:57.351  INFO 1 --- [  restartedMain] c.a.facturapp.config.WebConfigurer       : Web application configuration, using profiles: prod
facturapp_1  | 2019-06-03 06:56:57.353  INFO 1 --- [  restartedMain] c.a.facturapp.config.WebConfigurer       : Web application fully configured
facturapp_1  | WARNING: An illegal reflective access operation has occurred
facturapp_1  | WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils (file:/app/libs/spring-core-5.1.6.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
facturapp_1  | WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils
facturapp_1  | WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
facturapp_1  | WARNING: All illegal access operations will be denied in a future release
facturapp_1  | 2019-06-03 07:03:27.207  WARN 1 --- [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is com.google.common.util.concurrent.ExecutionError: java.lang.OutOfMemoryError: Java heap space
facturapp_1  | 2019-06-03 07:03:27.606 ERROR 1 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed
facturapp_1  |
facturapp_1  | org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is com.google.common.util.concurrent.ExecutionError: java.lang.OutOfMemoryError: Java heap space
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:185)
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53)
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158)
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
facturapp_1  |  at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:893)
facturapp_1  |  at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:163)
facturapp_1  |  at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
facturapp_1  |  at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
facturapp_1  |  at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
facturapp_1  |  at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
facturapp_1  |  at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
facturapp_1  |  at com.facturapp.FacturApp.main(FacturApp.java:63)
facturapp_1  |  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
facturapp_1  |  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
facturapp_1  |  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
facturapp_1  |  at java.base/java.lang.reflect.Method.invoke(Unknown Source)
facturapp_1  |  at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
facturapp_1  | Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.OutOfMemoryError: Java heap space
facturapp_1  |  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2049)
facturapp_1  |  at com.google.common.cache.LocalCache.get(LocalCache.java:3953)
facturapp_1  |  at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3976)
facturapp_1  |  at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4960)
facturapp_1  |  at springfox.documentation.schema.CachingModelDependencyProvider.dependentModels(CachingModelDependencyProvider.java:58)
facturapp_1  |  at springfox.documentation.schema.DefaultModelProvider.dependencies(DefaultModelProvider.java:128)
facturapp_1  |  at springfox.documentation.schema.CachingModelProvider.dependencies(CachingModelProvider.java:68)
facturapp_1  |  at springfox.documentation.spring.web.scanners.ApiModelReader.populateDependencies(ApiModelReader.java:136)
facturapp_1  |  at springfox.documentation.spring.web.scanners.ApiModelReader.read(ApiModelReader.java:78)
facturapp_1  |  at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:133)
facturapp_1  |  at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:71)
facturapp_1  |  at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:101)
facturapp_1  |  at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:167)
facturapp_1  |  at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
facturapp_1  |  ... 17 common frames omitted
facturapp_1  | Caused by: java.lang.OutOfMemoryError: Java heap space
facturapp_1  |  at java.base/java.util.Arrays.copyOf(Unknown Source)
facturapp_1  |  at java.base/java.util.ArrayList.grow(Unknown Source)
facturapp_1  |  at java.base/java.util.ArrayList.addAll(Unknown Source)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:181)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:207)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:183)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:207)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:183)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:220)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:181)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:220)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:181)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:220)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:181)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:207)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:183)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:120)
facturapp_1  |  at springfox.documentation.schema.DefaultModelDependencyProvider.dependentModels(DefaultModelDependencyProvider.java:79)
facturapp_1  |  at springfox.documentation.schema.CachingModelDependencyProvider$1.load(CachingModelDependencyProvider.java:50)
facturapp_1  |  at springfox.documentation.schema.CachingModelDependencyProvider$1.load(CachingModelDependencyProvider.java:48)
facturapp_1  |  at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3529)
facturapp_1  |  at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2278)
facturapp_1  |  at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2155)
facturapp_1  |  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2045)
facturapp_1  |  at com.google.common.cache.LocalCache.get(LocalCache.java:3953)
facturapp_1  |  at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3976)

我的问题是:

1. 为什么我只是扩展一个简单的 DTO 就会遇到这样的问题？
2. 我该如何解决这个问题？

Answer 1

我的错误是使用域类作为字段而不是地址的 DTO 类。

问题仍然是为什么在启动应用程序时会出现内存问题，而不是在调用使用错误类的方法时出现内存问题。