私は Resteasy を使用して Web サービス層を作成しており、ここで説明されているように、サーバー側の応答キャッシュとして infinispan を構成しようとしました: http://docs.jboss.org/resteasy/docs/3.0.1.Final/userguide/html_single /index.html#server_cache
このレイヤーはステートレスであり、heroku の多数のノードにデプロイされる可能性があるため、mongodb キャッシュ ローダーを使用してキャッシュ データを保存したいと考えました。このようにして、キャッシュはすべてのノード間で同期されます。
ただし、ローカル マシンでサーバーを起動すると、次のエラーが発生します。
org.infinispan.CacheException: キャッシュ ローダーを開始できません (このメッセージの最後に完全なスタック トレースがあります)
宣言された依存関係は次のとおりです。
compile 'org.jboss.resteasy:resteasy-jaxrs:3.0.1.Final'
compile 'org.jboss.resteasy:resteasy-client:3.0.1.Final'
compile 'org.jboss.resteasy:resteasy-spring:3.0.1.Final'
compile 'org.jboss.resteasy:resteasy-cache-core:3.0.1.Final'
compile 'org.infinispan:infinispan-cachestore-mongodb:5.3.0.Final'
(org.infinispan:infinispan-cachestore-mongodb:5.3.0.Final jar に、org.jboss.resteasy:resteasy-cache-core:3.0.1.Final にも存在するほぼすべてのクラスが含まれているのは奇妙です。関連するクラスのみを使用して独自の mongo キャッシュ ローダー jar を構築するところまで、重複を除外しようとする依存関係グラフで多くのことを行いましたが、それを行うか、コア jar を削除して、 mongo cache loader jar が Unexpected element '{urn:infinispan:config:5.3}infinispan' のような例外をスローしました)
サイトのドキュメントに従って infinispan.xml も設定しました: https://docs.jboss.org/author/display/ISPN/Cache+Loaders+and+Stores#CacheLoadersandStores-MongoDBcacheloader
<?xml version="1.0" encoding="UTF-8"?>
<infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:infinispan:config:5.3
http://www.infinispan.org/schemas/infinispan-config-5.3.xsd
urn:infinispan:config:mongodb:5.3
https://raw.github.com/infinispan/infinispan/5.3.x/cachestore/mongodb/src/main/resources/schema/mongodb-cachestore-config-5.3.xsd"
xmlns="urn:infinispan:config:5.3">
<namedCache name="nf-demo">
<eviction strategy="LIRS" maxEntries="10" />
<loaders>
<mongodbStore xmlns="urn:infinispan:config:mongodb:5.3">
<connection host="localhost" port="27017" timeout="2000"
acknowledgment="0" />
<storage database="infinispan_test_database" collection="infispan_cachestore" />
</mongodbStore>
</loaders>
</namedCache>
</infinispan>
問題の原因がバージョンの競合なのか、mongodb キャッシュ ローダーのバグなのかはわかりません。また、infospan 構成内で mongo db ローダーを登録するために実行する必要がある追加の手順があるかどうかもわかりません。別のスレッドで、誰かがカスタム ローダーを作成したときに同じエラーが発生しました。私は github で mongo db ローダーのソース コードを調べましたが、このメソッドへの参照が見つかりませんでした。参照用のスレッドは次のとおりです: https://community.jboss.org/thread/218305
どんな助けでも大歓迎です。さらに情報が必要な場合はお知らせください。
完全なスタック トレース:
Failed startup of context org.gradle.api.plugins.jetty.internal.JettyPluginWebAppContext@6823bf90{/avivoca,/Users/daniel.freitas/dev/projects/mtl-lp-notification-layer/src/main/webapp}
org.infinispan.CacheException: Unable to invoke method public void org.infinispan.loaders.CacheLoaderManagerImpl.start() on object of type CacheLoaderManagerImpl
at org.infinispan.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:207)
at org.infinispan.factories.AbstractComponentRegistry$PrioritizedMethod.invoke(AbstractComponentRegistry.java:889)
at org.infinispan.factories.AbstractComponentRegistry.invokeStartMethods(AbstractComponentRegistry.java:658)
at org.infinispan.factories.AbstractComponentRegistry.internalStart(AbstractComponentRegistry.java:647)
at org.infinispan.factories.AbstractComponentRegistry.start(AbstractComponentRegistry.java:550)
at org.infinispan.factories.ComponentRegistry.start(ComponentRegistry.java:221)
at org.infinispan.CacheImpl.start(CacheImpl.java:691)
at org.infinispan.manager.DefaultCacheManager.wireAndStartCache(DefaultCacheManager.java:685)
at org.infinispan.manager.DefaultCacheManager.createCache(DefaultCacheManager.java:648)
at org.infinispan.manager.DefaultCacheManager.getCache(DefaultCacheManager.java:544)
at org.jboss.resteasy.plugins.cache.server.ServerCacheFeature.getXmlCache(ServerCacheFeature.java:88)
at org.jboss.resteasy.plugins.cache.server.ServerCacheFeature.getCache(ServerCacheFeature.java:61)
at org.jboss.resteasy.plugins.cache.server.ServerCacheFeature.configure(ServerCacheFeature.java:36)
at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1673)
at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1310)
at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1232)
at org.jboss.resteasy.spi.ResteasyDeployment.registerProvider(ResteasyDeployment.java:531)
at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:346)
at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:241)
at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:28)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1272)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:489)
at org.gradle.api.plugins.jetty.internal.JettyPluginWebAppContext.doStart(JettyPluginWebAppContext.java:112)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.gradle.api.plugins.jetty.internal.Jetty6PluginServer.start(Jetty6PluginServer.java:111)
at org.gradle.api.plugins.jetty.AbstractJettyRunTask.startJettyInternal(AbstractJettyRunTask.java:247)
at org.gradle.api.plugins.jetty.AbstractJettyRunTask.startJetty(AbstractJettyRunTask.java:198)
at org.gradle.api.plugins.jetty.AbstractJettyRunTask.start(AbstractJettyRunTask.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1047)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:877)
at org.gradle.api.internal.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:216)
at org.gradle.api.internal.BeanDynamicObject.invokeMethod(BeanDynamicObject.java:122)
at org.gradle.api.internal.CompositeDynamicObject.invokeMethod(CompositeDynamicObject.java:147)
at org.gradle.api.plugins.jetty.JettyRun_Decorated.invokeMethod(Unknown Source)
at groovy.lang.GroovyObject$invokeMethod.call(Unknown Source)
at org.gradle.util.ReflectionUtil.invoke(ReflectionUtil.groovy:23)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:217)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:199)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:526)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:509)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
at org.gradle.api.internal.changedetection.state.CacheLockReleasingTaskExecuter$1.run(CacheLockReleasingTaskExecuter.java:35)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(DefaultCacheAccess.java:179)
at org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(DefaultCacheAccess.java:232)
at org.gradle.cache.internal.DefaultPersistentDirectoryStore.longRunningOperation(DefaultPersistentDirectoryStore.java:142)
at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.longRunningOperation(DefaultTaskArtifactStateCacheAccess.java:83)
at org.gradle.api.internal.changedetection.state.CacheLockReleasingTaskExecuter.execute(CacheLockReleasingTaskExecuter.java:33)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.ContextualisingTaskExecuter.execute(ContextualisingTaskExecuter.java:34)
at org.gradle.api.internal.changedetection.state.CacheLockAcquiringTaskExecuter$1.run(CacheLockAcquiringTaskExecuter.java:39)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:124)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:112)
at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:134)
at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:79)
at org.gradle.api.internal.changedetection.state.CacheLockAcquiringTaskExecuter.execute(CacheLockAcquiringTaskExecuter.java:37)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:41)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:42)
at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:282)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.executeTask(DefaultTaskPlanExecutor.java:48)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.processTask(DefaultTaskPlanExecutor.java:34)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:27)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:89)
at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:67)
at org.gradle.api.internal.changedetection.state.TaskCacheLockHandlingBuildExecuter$1.run(TaskCacheLockHandlingBuildExecuter.java:31)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:124)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:112)
at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:134)
at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:79)
at org.gradle.api.internal.changedetection.state.TaskCacheLockHandlingBuildExecuter.execute(TaskCacheLockHandlingBuildExecuter.java:29)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:67)
at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:54)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:166)
at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:113)
at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:81)
at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:64)
at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:35)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)
at org.gradle.api.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)
at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:201)
at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:174)
at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:170)
at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:139)
at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
at org.gradle.launcher.Main.doAction(Main.java:48)
at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
at org.gradle.launcher.Main.main(Main.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:50)
at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:32)
at org.gradle.launcher.GradleMain.main(GradleMain.java:26)
Caused by: org.infinispan.CacheException: Unable to start cache loaders
at org.infinispan.loaders.CacheLoaderManagerImpl.start(CacheLoaderManagerImpl.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.infinispan.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:205)
... 130 more
Caused by: java.lang.IllegalArgumentException: Cannot load null class!
at org.infinispan.util.Util.getInstance(Util.java:224)
at org.infinispan.loaders.CacheLoaderManagerImpl.createCacheLoader(CacheLoaderManagerImpl.java:346)
at org.infinispan.loaders.CacheLoaderManagerImpl.createCacheLoader(CacheLoaderManagerImpl.java:336)
at org.infinispan.loaders.CacheLoaderManagerImpl.start(CacheLoaderManagerImpl.java:149)
... 135 more
アップデート
Infinispan のソース コードをステップ トレースし、エラーをクラス org.infinispan.loaders.CacheLoaderManagerImpl のこのメソッドに絞り込みました。cfg インスタンスのタイプは org.infinispan.loaders.mongodb.MongoDBCacheStoreConfig です。興味深いことに、これは Eclipse のクラスパスのどのライブラリにもありません。このクラスは実行時に作成されると思いますか? cfg.getCacheLoaderClassName() が最初の行で null を返すため、NPE エラーが報告されます。
CacheLoader createCacheLoader(CacheLoaderConfig cfg, AdvancedCache<Object, Object> cache) throws Exception {
CacheLoader tmpLoader = (CacheLoader) Util.getInstance(cfg.getCacheLoaderClassName(), cache.getClassLoader());
if (tmpLoader != null) {
if (cfg instanceof CacheStoreConfig) {
CacheStore tmpStore = (CacheStore) tmpLoader;
// async?
CacheStoreConfig cfg2 = (CacheStoreConfig) cfg;
if (cfg2.getAsyncStoreConfig().isEnabled()) {
tmpStore = createAsyncStore(tmpStore, cfg2);
tmpLoader = tmpStore;
}
// read only?
if (cfg2.isIgnoreModifications()) {
tmpStore = new ReadOnlyStore(tmpStore);
tmpLoader = tmpStore;
}
// singleton?
SingletonStoreConfig ssc = cfg2.getSingletonStoreConfig();
if (ssc != null && ssc.isSingletonStoreEnabled()) {
tmpStore = new SingletonStore(tmpStore, cache, ssc);
tmpLoader = tmpStore;
}
}
// load props
tmpLoader.init(cfg, cache, m);
}
return tmpLoader;
}