Spring-wired EhCacheディスクストアがマルチスレッドアプリケーションでコリジョンを作成する

Question

ガットフィーリング：2つのスレッドが両方ともディスクベースのオーバーフローキャッシュを初期化しようとしているように見えます。

このアプリケーションには2つのスレッドがあります。以下のログ抽出において、それらはID0000004aおよび0000003dによって示される。彼らは同時に開始：

<ehcache:annotation-driven cache-manager="ehCacheManager"/> 
<bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"/> 

をそしてthuslyに構成：

[3/04/12 10:17:50:832 EST] 0000004a EhCacheManage I org.springframework.cache.ehcache.EhCacheManagerFactoryBean afterPropertiesSet Initializing EHCache CacheManager 
[3/04/12 10:17:50:832 EST] 0000003d EhCacheManage I org.springframework.cache.ehcache.EhCacheManagerFactoryBean afterPropertiesSet Initializing EHCache CacheManager 

Ehcacheの春を経由して配線されて

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd" updateCheck="false"> 
    <diskStore path="java.io.tmpdir/GMM_DAO_Caches"/> 

    <defaultCache eternal="false" maxElementsInMemory="1000" 
       overflowToDisk="false" diskPersistent="false" timeToIdleSeconds="0" 
       timeToLiveSeconds="300" memoryStoreEvictionPolicy="LRU"/> 

    <cache name="dao_results" eternal="false" maxElementsInMemory="1000" 
      overflowToDisk="true" diskPersistent="false" 
      timeToIdleSeconds="0" timeToLiveSeconds="3600" 
      memoryStoreEvictionPolicy="LRU"/> 

    <cache name="dao_results_shortlived" eternal="false" maxElementsInMemory="1000" 
      overflowToDisk="true" diskPersistent="false" 
      timeToIdleSeconds="0" timeToLiveSeconds="300" 
      memoryStoreEvictionPolicy="LRU"/> 

</ehcache> 

エラー：私は疑う

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.googlecode.ehcache.annotations.config.internalEhCach 
eCachingAdvisor': Cannot resolve reference to bean 'com.googlecode.ehcache.annotations.impl.CacheStaticMethodMatcherPointcut#0' while setting bean property 
'pointcut'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.googlecode.ehcache.annotations 
.impl.CacheStaticMethodMatcherPointcut#0': Cannot resolve reference to bean 'com.googlecode.ehcache.annotations.impl.CacheAttributeSourceImpl#0' while sett 
ing bean property 'cacheAttributeSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.g 
ooglecode.ehcache.annotations.impl.CacheAttributeSourceImpl#0': Cannot resolve reference to bean 'ehCacheManager' while setting bean property 'cacheManager 
'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehCacheManager' defined in class path resour 
ce [ApplicationContext-DAOs.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Could not create cache directory "C: 
\DOCUME~1\JMAWSO~1.NT3\LOCALS~1\Temp\GMM_DAO_Caches\ehcache_auto_created_1333412270879". 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:86) 
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:100) 
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:86) 
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:68) 
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:359) 
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanF 
actory.java:407) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1426) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) 
     ... 35 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.googlecode.ehcache.annotations.impl.CacheStaticMetho 
dMatcherPointcut#0': Cannot resolve reference to bean 'com.googlecode.ehcache.annotations.impl.CacheAttributeSourceImpl#0' while setting bean property 'cac 
heAttributeSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.googlecode.ehcache.anno 
tations.impl.CacheAttributeSourceImpl#0': Cannot resolve reference to bean 'ehCacheManager' while setting bean property 'cacheManager'; nested exception is 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehCacheManager' defined in class path resource [ApplicationContext 
-DAOs.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Could not create cache directory "C:\DOCUME~1\JMAWSO~1.NT3 
\LOCALS~1\Temp\GMM_DAO_Caches\ehcache_auto_created_1333412270879". 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) 
     ... 53 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.googlecode.ehcache.annotations.impl.CacheAttributeSo 
urceImpl#0': Cannot resolve reference to bean 'ehCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.fa 
ctory.BeanCreationException: Error creating bean with name 'ehCacheManager' defined in class path resource [ApplicationContext-DAOs.xml]: Invocation of ini 
t method failed; nested exception is net.sf.ehcache.CacheException: Could not create cache directory "C:\DOCUME~1\JMAWSO~1.NT3\LOCALS~1\Temp\GMM_DAO_Caches 
\ehcache_auto_created_1333412270879". 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) 
     ... 63 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehCacheManager' defined in class path resource [Applicat 
ionContext-DAOs.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Could not create cache directory "C:\DOCUME~1\JM 
AWSO~1.NT3\LOCALS~1\Temp\GMM_DAO_Caches\ehcache_auto_created_1333412270879". 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) 
     ... 73 more 
Caused by: net.sf.ehcache.CacheException: Could not create cache directory "C:\DOCUME~1\JMAWSO~1.NT3\LOCALS~1\Temp\GMM_DAO_Caches\ehcache_auto_created_1333 
412270879". 
    at net.sf.ehcache.store.compound.factories.DiskOverflowStorageFactory.getDataFile(DiskOverflowStorageFactory.java:89) 
    at net.sf.ehcache.store.compound.factories.DiskOverflowStorageFactory.<init>(DiskOverflowStorageFactory.java:71) 
    at net.sf.ehcache.store.compound.impl.OverflowToDiskStore.create(OverflowToDiskStore.java:63) 
    at net.sf.ehcache.Cache.initialise(Cache.java:969) 
    at net.sf.ehcache.CacheManager.addCacheNoCheck(CacheManager.java:967) 
    at net.sf.ehcache.CacheManager.addConfiguredCaches(CacheManager.java:608) 
    at net.sf.ehcache.CacheManager.init(CacheManager.java:339) 
    at net.sf.ehcache.CacheManager.<init>(CacheManager.java:280) 
    at org.springframework.cache.ehcache.EhCacheManagerFactoryBean.afterPropertiesSet(EhCacheManagerFactoryBean.java:115) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417) 
     ... 80 more 

両方のスレッドがsaに書き込もうとしています私はファイル。タイムスタンプは一意のファイル名を作る良い方法ではありません。このエラーは、より多くのスレッドを持つアプリで頻繁に発生します。

どのようにこれらの衝突を回避できますか？私は、スレッドIDやその他の一意の識別子をファイル名に埋め込むことをお勧めします。

Answer 1

あなたの設定は設定を見てもうまくいくと思っていたでしょう。

1つのオプションは、2つの異なるcachemanagerを定義することです。それぞれに独自のディスクストアがあります。

また、CacheManagerファクトリメソッドを使用してシングルトンCacheManagerを作成することで、2つのキャッシュマネージャが同じストアにアクセスすることによる競合を排除できます。しかし、Ehcacheはそのケースを処理し、警告を与える必要があります。バージョン固有の問題かもしれません。

最後に、これがWindows権限の問題であるかどうかを確認してください。代わりの場所をお試しください。たとえば、

<diskStore path="ehcache.disk.store.dir2" />とし、書き込み可能であることがわかっている場所に-D変数を設定します。例えば、（Cと仮定すると：/ TEMPが存在する）

-Dehcache.disk.store.dir2=C:/temp/ehcache