[TAPESTRY-2473] Application locks up, with all threads waiting for read lock inside ConcurrentBarrier

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.0.11, 5.0.12, 5.0.13
• Fix Version/s: 5.0.14
• Component/s: Framework
• Environment: Red Hat, Tomcat, java version "1.5.0_10"
• Assignee: Howard Lewis Ship
• Reporter: Fernando Padilla
• Created: 23/Jun/08 15:07
• Updated: 02/Jul/08 16:05
• Resolved: 02/Jul/08 16:05

Description

We are running in production, and pretty regularly the system seems to hang up. After I do a jstack it looks like all the threads are tied up against some lock.

Can you help me figure out the root cause?

I will be attaching the full jstack the the stuck threads all look like:

Thread 25014: (state = BLOCKED)

• sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise)
• java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Compiled frame)
• java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(int) @bci=10, line=1124 (Compiled frame)
• org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(org.apache.tapestry.ioc.internal.util.Invokable) @bci=27, line=70 (Compiled frame)
• $RequestHandler_11aa7f96e6c.service(org.apache.tapestry.services.Request, org.apache.tapestry.services.Response) @bci=10 (Compiled frame)
• org.apache.tapestry.services.TapestryModule$12.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) @bci=40, line=924 (Compiled frame)
• $HttpServletRequestHandler_11aa7f96e65.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) @bci=10 (Compiled frame)
• org.apache.tapestry.internal.services.IgnoredPathsFilter.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, org.apache.tapestry.services.HttpServletRequestHandler) @bci
  =95, line=62 (Compiled frame)
• $HttpServletRequestFilter_11aa7f96e63.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, org.apache.tapestry.services.HttpServletRequestHandler) @bci=7 (Compiled frame)
• $HttpServletRequestHandler_11aa7f96e65.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) @bci=10 (Compiled frame)
• $HttpServletRequestHandler_11aa7f96e65.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) @bci=10 (Compiled frame)
• org.apache.tapestry.TapestryFilter.doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) @bci=12, line=168 (Compiled frame)
  ......