Wildflyで「15秒後にロックを取得できません」というエラーを修正する方法

Question

Webアプリケーションは<distributable/>ですが、Wildlifeのスタンドアロンインスタンスにも展開されています。ときどき、バックエンドへの呼び出しが数秒間停止することがあります。これは、しばしば以下に示すような例外につながります。

長時間実行しているバックエンド要求を制御できないため、これをどのように修正できますか？

14:55:04,808 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (default task-6) ISPN000136: Error executing command LockControlCommand, writing keys []: org.infinispan.util.concurrent.TimeoutException: ISPN000299: Unable to acquire lock after 15 seconds for key LA6Q5r9L1q-VF2tyKE9Pc_bO9yYtzXu8dYt8l-BQ and requestor GlobalTransaction:<null>:37:local. Lock is held by GlobalTransaction:<null>:36:local 
    at org.infinispan.util.concurrent.locks.impl.DefaultLockManager$KeyAwareExtendedLockPromise.lock(DefaultLockManager.java:236) 
    at org.infinispan.interceptors.locking.AbstractLockingInterceptor.lockAllAndRecord(AbstractLockingInterceptor.java:199) 
    at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.checkPendingAndLockAllKeys(AbstractTxLockingInterceptor.java:199) 
    at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.lockAllOrRegisterBackupLock(AbstractTxLockingInterceptor.java:165) 
    at org.infinispan.interceptors.locking.PessimisticLockingInterceptor.visitLockControlCommand(PessimisticLockingInterceptor.java:184) 
    at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:110) 
    at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) 
    at org.infinispan.interceptors.TxInterceptor.invokeNextInterceptorAndVerifyTransaction(TxInterceptor.java:157) 
    at org.infinispan.interceptors.TxInterceptor.visitLockControlCommand(TxInterceptor.java:215) 
    at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:110) 
    at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) 
    at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:107) 
    at org.infinispan.interceptors.InvocationContextInterceptor.visitLockControlCommand(InvocationContextInterceptor.java:81) 
    at org.infinispan.commands.control.LockControlCommand.acceptVisitor(LockControlCommand.java:110) 
    at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:336) 
    at org.infinispan.cache.impl.CacheImpl.lock(CacheImpl.java:828) 
    at org.infinispan.cache.impl.CacheImpl.lock(CacheImpl.java:810) 
    at org.infinispan.cache.impl.AbstractDelegatingAdvancedCache.lock(AbstractDelegatingAdvancedCache.java:177) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionMetaDataFactory.getValue(InfinispanSessionMetaDataFactory.java:84) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionMetaDataFactory.findValue(InfinispanSessionMetaDataFactory.java:69) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionMetaDataFactory.findValue(InfinispanSessionMetaDataFactory.java:39) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionFactory.findValue(InfinispanSessionFactory.java:61) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionFactory.findValue(InfinispanSessionFactory.java:40) 
    at org.wildfly.clustering.web.infinispan.session.InfinispanSessionManager.findSession(InfinispanSessionManager.java:234) 
    at org.wildfly.clustering.web.undertow.session.DistributableSessionManager.getSession(DistributableSessionManager.java:140) 
    at io.undertow.servlet.spec.ServletContextImpl.getSession(ServletContextImpl.java:726) 
    at io.undertow.servlet.spec.HttpServletRequestImpl.getSession(HttpServletRequestImpl.java:370) 
    at au.com.agic.settings.listener.SessionInvalidatorListener.clearSession(SessionInvalidatorListener.java:57) 
    at au.com.agic.settings.listener.SessionInvalidatorListener.requestInitialized(SessionInvalidatorListener.java:52) 
    at io.undertow.servlet.core.ApplicationListeners.requestInitialized(ApplicationListeners.java:245) 
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:283) 
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263) 
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) 
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174) 
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) 
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 

Answer 1

答えは、このようなinfinispan構成を更新することで、ロックタイムアウトが60秒に増加すると思います。

<cache-container name="web" default-cache="passivation" module="org.wildfly.clustering.web.infinispan"> 
       <local-cache name="passivation"> 
        <locking isolation="REPEATABLE_READ" striping="false" acquire-timeout="60000"/> 
        <transaction mode="BATCH"/> 
        <file-store passivation="true" purge="false"/> 
       </local-cache> 
       <local-cache name="persistent"> 
        <locking isolation="REPEATABLE_READ" striping="false" acquire-timeout="60000"/> 
        <transaction mode="BATCH"/> 
        <file-store passivation="false" purge="false"/> 
       </local-cache> 
      </cache-container>