GerorgeEG opened a new issue, #13018:
URL: https://github.com/apache/cloudstack/issues/13018
### problem
We have upgrade the ACS from 4.19.1.2 to 4.20.2.0 and after that Apache
CloudStack is giving "HTTP ERROR 503 Service Unavailable"
We verified ACS databse is up but ACS itself is not trying to (not able to
) connect to database.
Below is the error log
systemctl status cloudstack-management.service
● cloudstack-management.service - CloudStack Management Server
Loaded: loaded (/usr/lib/systemd/system/cloudstack-management.service;
disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/cloudstack-management.service.d
└─filelimit.conf
Active: active (running) since Tue 2026-04-14 02:16:47 CST; 16min ago
Main PID: 3598 (java)
Tasks: 45 (limit: 203511)
Memory: 2.8G
CGroup: /system.slice/cloudstack-management.service
└─3598 /usr/bin/java
-Djava.security.properties=/etc/cloudstack/management/java.security.ciphers
-Djava.awt.headless=true -Xmx8G -XX:+UseParallelGC -XX:MaxGCPauseMillis=500
-XX:+HeapDumpOnOutOfM>
Apr 14 02:16:47 **<Server FQDN>** systemd[1]: Started CloudStack Management
Server.
lines 1-12/12 (END)
=============
Error in the ACS log
2026-04-14 02:16:58,510 WARN [o.a.c.s.m.m.i.DefaultModuleDefinitionSet]
(main:[]) (logid:) Failed to start module [sharedfs-provider-storagevm] due to:
[Error creating bean with name 'org.springframework.b
eans.factory.config.PropertyPlaceholderConfigurer#0' defined in URL
[jar:file:/usr/share/cloudstack-management/lib/cloudstack-4.20.2.0.jar!/META-INF/cloudstack/bootstrap/spring-bootstrap-context-inheritable
.xml]: Cannot resolve reference to bean 'DefaultConfigResources' while
setting bean property 'locations'; nested exception is
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named '
DefaultConfigResources' available].
2026-04-14 02:16:58,510 DEBUG [o.a.c.s.m.m.i.DefaultModuleDefinitionSet]
(main:[]) (logid:) module start failure of module [sharedfs-provider-storagevm]
was due to: org.springframework.beans.factory.BeanCre
ationException: Error creating bean with name
'org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0'
defined in URL
[jar:file:/usr/share/cloudstack-management/lib/cloudstack-4.20.2.0.jar
!/META-INF/cloudstack/bootstrap/spring-bootstrap-context-inheritable.xml]:
Cannot resolve reference to bean 'DefaultConfigResources' while setting bean
property 'locations'; nested exception is org.springfr
amework.beans.factory.NoSuchBeanDefinitionException: No bean named
'DefaultConfigResources' available
at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342)
at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1707)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1452)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213)
at
org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:171)
at
org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:748)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.loadContext(DefaultModuleDefinitionSet.java:174)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet$2.with(DefaultModuleDefinitionSet.java:143)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:274)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:279)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:279)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:279)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:279)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:279)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.withModule(DefaultModuleDefinitionSet.java:262)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.loadContexts(DefaultModuleDefinitionSet.java:131)
at
org.apache.cloudstack.spring.module.model.impl.DefaultModuleDefinitionSet.load(DefaultModuleDefinitionSet.java:79)
at
org.apache.cloudstack.spring.module.factory.ModuleBasedContextFactory.loadModules(ModuleBasedContextFactory.java:37)
at
org.apache.cloudstack.spring.module.factory.CloudStackSpringContext.init(CloudStackSpringContext.java:71)
at
org.apache.cloudstack.spring.module.factory.CloudStackSpringContext.<init>(CloudStackSpringContext.java:58)
at
org.apache.cloudstack.spring.module.factory.CloudStackSpringContext.<init>(CloudStackSpringContext.java:62)
at
org.apache.cloudstack.spring.module.web.CloudStackContextLoaderListener.contextInitialized(CloudStackContextLoaderListener.java:53)
at
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1073)
at
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
at
org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:1002)
at
org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:765)
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:916)
at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at
org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:426)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.server.Server.start(Server.java:423)
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.server.Server.doStart(Server.java:387)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.apache.cloudstack.ServerDaemon.start(ServerDaemon.java:204)
at org.apache.cloudstack.ServerDaemon.main(ServerDaemon.java:115)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException:
No bean named 'DefaultConfigResources' available
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:874)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1358)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:309)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:330)
... 56 more
2026-04-14 02:16:58,510 DEBUG [o.a.c.s.m.m.i.DefaultModuleDefinitionSet]
(main:[]) (logid:) Trying to obtain module [storage-allocator] context.
2026-04-14 02:16:58,510 DEBUG [o.a.c.s.m.m.i.DefaultModuleDefinitionSet]
(main:[]) (logid:) Trying to load module [storage-allocator] context.
### versions
ACS Version pre-upgrade : 4.19.1.2
ACS version post-upgrade : 4.20.2.0
Management and DB OS : RHEL 8
### The steps to reproduce the bug
1.
2.
3.
...
### What to do about it?
_No response_
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