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Posted to dev@jackrabbit.apache.org by "Jeroen Reijn (Commented) (JIRA)" <ji...@apache.org> on 2011/12/21 12:05:30 UTC
[jira] [Commented] (JCR-3013) ArrayIndexOutOfBoundsException:
ConcurrentCache
[ https://issues.apache.org/jira/browse/JCR-3013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174006#comment-13174006 ]
Jeroen Reijn commented on JCR-3013:
-----------------------------------
Thanks Jukka!
> ArrayIndexOutOfBoundsException: ConcurrentCache
> -----------------------------------------------
>
> Key: JCR-3013
> URL: https://issues.apache.org/jira/browse/JCR-3013
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: 2.2.5, 2.2.7
> Environment: My Platform:
> - Linux Debian (64)
> - sun
> java version "1.6.0_22"
> Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
> Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03, mixed mode)
> - MemTotal: 49563216 kB
> - Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
> - apache sling / JCR Cluster
> Reporter: Michael Klenk
> Fix For: 2.2.8
>
> Attachments: ConcurrentCache.patch
>
>
> ArrayIndexOutOfBoundsException after several days of uptime.
> I'm experiencing some strange ArrayIndexOutOfBoundsExceptions on
> accessing the jackrabbit ConcurrentCache in 2.2.5. in Line 241 during
> shrinkIfNeeded check.
> Caused by: java.lang.ArrayIndexOutOfBoundsException: -14
> at
> org.apache.jackrabbit.core.cache.ConcurrentCache.shrinkIfNeeded(ConcurrentCache.java:241)
> I reviewed jackrabbit-code and I'm sure it's caused by that
> AtomicInteger for realizing accessCounter in AbstractCache, which will
> have become negative during increasing over the Integer.MAX_VALUE constant.
> // Semi-random start index to prevent bias against the first
> segments
> int start = (int) getAccessCount() % segments.length;
> for (int i = start; isTooBig(); i = (i + 1) % segments.length) {
> synchronized (segments[i]) {
> ___________________________
> Uncaught Throwable java.lang.ArrayIndexOutOfBoundsException: -7
> at
> org.apache.jackrabbit.core.cache.ConcurrentCache.shrinkIfNeeded(ConcurrentCache.java:241)
> at
> org.apache.jackrabbit.core.cache.ConcurrentCache.put(ConcurrentCache.java:176)
> at
> org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.getBundle(AbstractBundlePersistenceManager.java:657)
> at
> org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.load(AbstractBundlePersistenceManager.java:400)
> at
> org.apache.jackrabbit.core.state.SharedItemStateManager.loadItemState(SharedItemStateManager.java:1819)
> at
> org.apache.jackrabbit.core.state.SharedItemStateManager.getNonVirtualItemState(SharedItemStateManager.java:1739)
> at
> org.apache.jackrabbit.core.state.SharedItemStateManager.getItemState(SharedItemStateManager.java:261)
> at
> org.apache.jackrabbit.core.state.LocalItemStateManager.getNodeState(LocalItemStateManager.java:107)
> at
> org.apache.jackrabbit.core.state.LocalItemStateManager.getItemState(LocalItemStateManager.java:172)
> at
> org.apache.jackrabbit.core.state.XAItemStateManager.getItemState(XAItemStateManager.java:260)
> at
> org.apache.jackrabbit.core.state.SessionItemStateManager.getItemState(SessionItemStateManager.java:161)
> at
> org.apache.jackrabbit.core.ItemManager.getItemData(ItemManager.java:370)
> at
> org.apache.jackrabbit.core.ItemManager.getItem(ItemManager.java:316)
> at
> org.apache.jackrabbit.core.ItemManager.getItem(ItemManager.java:610)
> at
> org.apache.jackrabbit.core.SessionImpl.getNodeById(SessionImpl.java:493)
> at
> org.apache.jackrabbit.core.SessionImpl.getNodeByIdentifier(SessionImpl.java:1045)
> at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.sling.jcr.base.SessionProxyHandler$SessionProxyInvocationHandler.invoke(SessionProxyHandler.java:109)
> at $Proxy2.getNodeByIdentifier(Unknown Source)
> at
> de.dig.cms.frontend.servlet.helper.ResourceUtil.findResourceById(ResourceUtil.java:44)
> at
> de.dig.cms.frontend.servlet.CMSContentEnrichServletFilter.doFilter(CMSContentEnrichServletFilter.java:194)
> at
> org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
> at
> de.dig.cms.frontend.servlet.CacheControlFilter.doFilter(CacheControlFilter.java:120)
> at
> org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
> at
> de.dig.cms.cache.impl.WallCacheServletFilter.processCacheableRequest(WallCacheServletFilter.java:244)
> at
> de.dig.cms.cache.impl.WallCacheServletFilter.processCacheableRequestWithLatch(WallCacheServletFilter.java:185)
> at
> de.dig.cms.cache.impl.WallCacheServletFilter.doFilter(WallCacheServletFilter.java:154)
> at
> org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
> at
> de.dig.cms.frontend.servletapi.CMSSlingHttpServletRequestFilter.doFilter(CMSSlingHttpServletRequestFilter.java:52)
> at
> org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
> at
> org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:313)
> at
> org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:207)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
> at
> org.ops4j.pax.web.service.internal.HttpServiceServletHandler.handle(HttpServiceServletHandler.java:64)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> at
> org.ops4j.pax.web.service.internal.HttpServiceContext.handle(HttpServiceContext.java:111)
> at
> org.ops4j.pax.web.service.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:64)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:324)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
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