Hibernate 4 Memcached L2 Cache Implementation
License: Apache License 2.0
Hibernate 4 Memcached Second Level Cache Implementation
Refer to wiki page : hibernate4-memcached wiki
CacheKeyPrefix를 지정할 수 있도록 하여, 하나의 memcached 서버군에서 여러 용도의 캐시가 존재할 때에 대비한 네임스페이스를 확보한다.
The query cache happens to be multitenant-safe since its refineKey includes the hashCode of the QueryKey (presumably to guard against MD5 collisions between queries). The rest of the caches, however, only use the string representation of the key in refineKey, which does not include the tenant identifier. Hibernate does not include an easy way to get this identifier outside of the hashCode of the CacheKey, so while that isn't ideal, it still needs to be included in all keys.
delete 작업을 unlockItem에서 하고 있는데 remove에서 하는 것이 맞아보인다.
touch whenever timestamp and region values accessed.
This make the keys live longer and avoid expired.
update/delete 등을 한 뒤에 flush를 하고서,
최종적으로 rollback을 했을 때의 반응 살펴보기.
Hello,
I'm getting a ClassNotFoundException while my application is booting up.
Looking over the packages, it seems its completely missing from the JAR itself:
http://mvnrepository.com/artifact/kr.pe.kwonnam.hibernate4memcached/hibernate4-memcached-core/0.6
Packages
kr.pe.kwonnam.hibernate4memcached
kr.pe.kwonnam.hibernate4memcached.memcached
kr.pe.kwonnam.hibernate4memcached.regions
kr.pe.kwonnam.hibernate4memcached.strategies
kr.pe.kwonnam.hibernate4memcached.timestamper
kr.pe.kwonnam.hibernate4memcached.util
Where is kr.pe.kwonnam.hibernate4memcached.spymemcached package?
Timestamp를 memcached increment 사용하도록 변경하여 도중 서버에서 캐시 사용시 더욱 철저한 동기화가 가능하도록 한다.
namespace용 키값을 읽어올 때 해당 키에서 cacheKeyPrefix를 지정하지 않아서 항상 같은 1로 읽어들이는 현상 발생.
Hi
I upgraded my play framework application to use hibernate 4.2.15 and switched from the com.googlecode.xmemcached cache project to this one.
When I'm doing a query I get a ClassNotFoundException inside your code.
It's pretty hard to find out if it's hibernate that creates a classloader that doesn't see my classes, or if it's play, or if it's your code that does it somehow. So this might not be an issue in this project.
I'm attaching the stacktrace that I get when I try to do a JPA.em().createNamedQuery(namedQuery).getResultList().
play.exceptions.JavaExecutionException: models.common.retailer.RetailerTransportPoint class is not found.
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:228)
at Invocation.HTTP Request(Play!)
Caused by: java.lang.IllegalArgumentException: models.common.retailer.RetailerTransportPoint class is not found.
at kr.pe.kwonnam.hibernate4memcached.regions.CacheItem.getSubclassName(CacheItem.java:83)
at kr.pe.kwonnam.hibernate4memcached.regions.CacheItem.parseTargetClass(CacheItem.java:57)
at kr.pe.kwonnam.hibernate4memcached.regions.CacheItem.<init>(CacheItem.java:53)
at kr.pe.kwonnam.hibernate4memcached.regions.GeneralDataMemcachedRegion.put(GeneralDataMemcachedRegion.java:80)
at kr.pe.kwonnam.hibernate4memcached.strategies.MemcachedRegionAccessStrategy.putFromLoad(MemcachedRegionAccessStrategy.java:52)
at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:219)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:137)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1112)
at org.hibernate.loader.Loader.processResultSet(Loader.java:969)
at org.hibernate.loader.Loader.doQuery(Loader.java:917)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:348)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:318)
at org.hibernate.loader.Loader.loadEntity(Loader.java:2145)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:82)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:72)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3939)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:462)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:431)
at org.hibernate.event.internal.DefaultLoadEventListener.loadByDerivedIdentitySimplePkValue(DefaultLoadEventListener.java:179)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:124)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1017)
at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:944)
at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:714)
at org.hibernate.type.EntityType.resolve(EntityType.java:502)
at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:168)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:137)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1112)
at org.hibernate.loader.Loader.processResultSet(Loader.java:969)
at org.hibernate.loader.Loader.doQuery(Loader.java:917)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:348)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:318)
at org.hibernate.loader.Loader.loadEntity(Loader.java:2145)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:82)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:72)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3939)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:462)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:431)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:208)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:264)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1017)
at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:944)
at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:714)
at org.hibernate.type.ManyToOneType.assemble(ManyToOneType.java:282)
at org.hibernate.cache.internal.StandardQueryCache.get(StandardQueryCache.java:170)
at org.hibernate.loader.Loader.getResultFromQueryCache(Loader.java:2477)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2385)
at org.hibernate.loader.Loader.list(Loader.java:2358)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:495)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:357)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:198)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1194)
at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101)
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:287)
at common.util.JPAWrapper.getQueryCachedSingleResultFromNamedQuery(JPAWrapper.java:363)
at controllers.retailer.Retailers.show(Retailers.java:1297)
at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:524)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:475)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:451)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:446)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:160)
... 1 more
Caused by: java.lang.ClassNotFoundException: models.common.retailer.RetailerTransportPoint
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at kr.pe.kwonnam.hibernate4memcached.regions.CacheItem.getSubclassName(CacheItem.java:81)
... 61 more
spring4(MVC)+hibernate4+memcached+mysql os:windows+tomcat7+jdk1.6
threw exception [Request processing failed; nested exception is
com.esotericsoftware.kryo.KryoException:
java.util.ConcurrentModificationException
libs:
hibernate4-memcached-core-0.6
hibernate4-memcached-spymemcached-adapter-0.6
kryo-2.24.0
kryo-serializers-0.27
lz4-1.2.0
minlog-1.2
objenesis-1.2
reflectasm-1.09
spymemcached-2.10.3
spring-4.0.2.RELEASE
hibernate-4.3.6.Final
full error
threw exception [Request processing failed; nested exception is com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException
Serialization trace:
classes (sun.misc.Launcher$AppClassLoader)
classloader (java.security.ProtectionDomain)
context (java.security.AccessControlContext)
acc (org.apache.catalina.loader.StandardClassLoader)
classloader (java.security.ProtectionDomain)
context (java.security.AccessControlContext)
acc (org.apache.catalina.loader.WebappClassLoader)
referent (java.util.ResourceBundle$LoaderReference)
loaderRef (java.util.ResourceBundle$CacheKey)
cacheKey (java.util.PropertyResourceBundle)
catalog (java.util.logging.Logger)
referent (java.lang.ref.WeakReference)
kids (java.util.logging.LogManager$RootLogger)
parent (java.util.logging.Logger)
loggers (java.util.logging.LogManager)
manager (java.util.logging.Logger)
logger (org.slf4j.impl.JDK14LoggerAdapter)
log (kr.pe.kwonnam.hibernate4memcached.regions.CacheItem)] with root cause
java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:81)
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:22)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:599)
at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:348)
at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:289)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObjectOrNull(Kryo.java:577)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:68)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:599)
at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:348)
at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:289)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObjectOrNull(Kryo.java:577)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:68)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObjectOrNull(Kryo.java:577)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:68)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObjectOrNull(Kryo.java:577)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:68)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:599)
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:82)
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:22)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:599)
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:95)
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:21)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.write(CompatibleFieldSerializer.java:42)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:599)
at kr.pe.kwonnam.hibernate4memcached.spymemcached.KryoTranscoder.kryoEncode(KryoTranscoder.java:94)
at kr.pe.kwonnam.hibernate4memcached.spymemcached.KryoTranscoder.encode(KryoTranscoder.java:76)
at net.spy.memcached.MemcachedClient.asyncStore(MemcachedClient.java:296)
at net.spy.memcached.MemcachedClient.set(MemcachedClient.java:884)
at net.spy.memcached.MemcachedClient.set(MemcachedClient.java:137)
at kr.pe.kwonnam.hibernate4memcached.spymemcached.SpyMemcachedAdapter.set(SpyMemcachedAdapter.java:154)
at kr.pe.kwonnam.hibernate4memcached.regions.GeneralDataMemcachedRegion.put(GeneralDataMemcachedRegion.java:82)
at kr.pe.kwonnam.hibernate4memcached.strategies.MemcachedRegionAccessStrategy.putFromLoad(MemcachedRegionAccessStrategy.java:46)
at org.hibernate.engine.internal.TwoPhaseLo
ad.doInitializeEntity(TwoPhaseLoad.java:221)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:144)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1114)
at org.hibernate.loader.Loader.processResultSet(Loader.java:972)
at org.hibernate.loader.Loader.doQuery(Loader.java:920)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
at org.hibernate.loader.Loader.doList(Loader.java:2553)
at org.hibernate.loader.Loader.doList(Loader.java:2539)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2369)
at org.hibernate.loader.Loader.list(Loader.java:2364)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:496)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:231)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1264)
at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103)
at org.springframework.orm.hibernate4.HibernateTemplate$29.doInHibernate(HibernateTemplate.java:875)
at org.springframework.orm.hibernate4.HibernateTemplate$29.doInHibernate(HibernateTemplate.java:864)
at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:340)
at org.springframework.orm.hibernate4.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:308)
at org.springframework.orm.hibernate4.HibernateTemplate.find(HibernateTemplate.java:864)
----- .......
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at $Proxy22.getXXX(Unknown Source)
at com.xxxx.controller.XXxController.fetchXxx(XXxController.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at de.javakaffee.web.msm.RequestTrackingContextValve.invoke(RequestTrackingContextValve.java:99)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:124)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:124)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:124)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:124)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:124)
at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:156)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2440)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2429)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:619)
serialVersionUID 를 기반으로 하여 Entity 클래스의 필드가 변경되더라도 캐싱에 문제가 없도록 처리한다.
I'm switching to memcached and since the introduction I get this error when an Enum value for a cached object is deserialized.
Also a try to save a new created entity is erroneously rejected with "object references an unsaved transient instance"
What could be the reason? In the debugger the cached enum value and the target object are looking good, all POJO criterias are met, it was working before.When turning off the cache all tests are working.
The deserialization exception is raised in around org/hibernate/tuple/entity/AbstractEntityTuplizer.java:712 / org/hibernate/property/DirectPropertyAccessor.java:122
org.springframework.orm.jpa.JpaSystemException: org.hibernate.PropertyAccessException: could not set a field value by reflection setter of foobar.Person.gender; nested exception is javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not set a field value by reflection setter of foobar.Person.gender
SpymemcachedAdapter does too many things.
Separate MemcachedClient object instantiation from SpymemcachedAdapter, and let the users create the objects.
SpyMemcachedAdapter refactoring and testing
Query Cache key hashing을 hibernate4memcached가 처리하도록 변경한다.
Kryo version up to 3.0.2
remove kryo-serializers
use Kryo object pool.
separate configuration file support needed.
need memcached authentication properties.
READ_ONLY concurrenty strategy support.
When spymemcached timeout error occurs, hibernate-memcached must ignore the error and just return null as result.
If not, when memcached servers down, every service down.
joda datetime을 사용하면 링크한 이슈가 발생합니다.
KryoTranscoder에서 serialize시 문제인 듯 합니다.
좋은 하루 되세요~
expiary -> expiry
GeneralDataMemcachedRegion.refineKey does a toString on Hibernate's provided key. This works fine when it's used as 2nd level cache as it's provided a CacheKey object which generates a relatively short toString string.
When used as standard query cache a QueryKey object is provided. The toString of the QueryKey is possibly long as it includes the whole SQL and this is quite often longer than the allowed 250 chars of a Memcached key.
The multitenant issue (#15) is in the same method, will do a PR to fix them both.
MemcachedAdapter에서 구현하던 Namespace 기능을 Hibernate4Memcached쪽으로 옮긴다.
QueryResultsMemcachedRegion is not eviected.
new CacheNamespace(regionName, false)must be
new CacheNamespace(regionName, true)With isMinimalPuts option, Hibernate cache minimalize unnecessary put operations.
Support isMinimalPuts with memcached get feature.
테스트DB를 기존 MySQL에서 H2를 사용하도록 변경한다.
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