Server is Unresponsive, and Many Threads are Observed as Blocked, Waiting on a Lock Inside KeyThrottle.execute() Method (Doc ID 1925123.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle WebCenter Sites - Version 7.6.2 and later
Information in this document applies to any platform.

Goal

Remote Satellite Server (RSS) or WebCenter Sites is unresponsive, and many threads are observed as blocked, waiting on a lock inside KeyThrottle.execute() method, e,g:

"http-7001-316" daemon prio=10 tid=0x00002aab834c4000 nid=0xd98 waiting for monitor entry [0x0000000059b8e000]
java.lang.Thread.State: BLOCKED (on object monitor)
  at com.fatwire.cs.core.util.KeyThrottle.execute(KeyThrottle.java:79)
- waiting to lock (a java.lang.Object)


The full stack trace is:

com.fatwire.cs.core.util.KeyThrottle.execute(KeyThrottle.java:79)
COM.FutureTense.Common.ContentServer.evalPage(ContentServer.java:1222)
COM.FutureTense.Common.ContentServer.execute(ContentServer.java:454)
COM.FutureTense.Servlet.FTServlet.execute(FTServlet.java:129)
COM.FutureTense.Servlet.FTServlet.doGet(FTServlet.java:53)
javax.servlet.http.HttpServlet.service(HttpServlet.java:707)


What is the significance of this?
Would this cause a lock on all managed servers in the cluster and block them all from working?

Solution

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