PM13820: HUNG THREADS IN AJAXPROXY HTTPURLCONNECTIONMANAGER.ACQUIRECONNEC TION

6.1.0.5 Download: WebSphere Portal and WCM V6.1.0 fix pack 5
6.1.0.6 Download: WebSphere Portal and WCM V6.1.0 fix pack 6

APAR status

• Closed as program error.

Error description

• Hung threads in
  com.ibm.mm.proxy.connection.filter.endpoint
  .HttpUrlConnectionManager.acquireConnection()
  after installation of 6103/6150 CF4.
  
  Javacore shows several web container threads in state P:
  
  WebContainer : [...] state:P
  at sun/misc/Unsafe.park(Native Method)
  at java/util/concurrent/locks/LockSupport.park(LockSupport
  .java:169)
  at java/util/concurrent/locks/AbstractQueuedSynchronizer
  .parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:740)
  at java/util/concurrent/locks/AbstractQueuedSynchronizer
  .doAcquireSharedInterruptibly(AbstractQueuedSynchronizer
  .java:896)
  at java/util/concurrent/locks/AbstractQueuedSynchronizer
  .acquireSharedInterruptibly(AbstractQueuedSynchronizer
  .java:1203)
  at java/util/concurrent/Semaphore.acquire(Semaphore.java:287)
  at com/ibm/mm/proxy/connection/filter/endpoint/HttpUrlConnectio
  nManager.acquireConnection(HttpUrlConnectionManager.java:89)
  at com/ibm/mm/proxy/connection/filter/endpoint/URLConnectionEnd
  pointFilter.connect(URLConnectionEndpointFilter.java:303)
  at com/ibm/mashups/proxy/connection/HttpURLConnectionFilter
  .connect(HttpURLConnectionFilter.java:161)
  

Local fix

• NA
  

Problem summary

• Hung threads in
  com.ibm.mm.proxy.connection.filter.endpoint.HttpUrlConnectionMan
  ager.acquireConnection() after installation of 6103/6150 CF4.
  Javacore shows several web container threads in state P:
  
  WebContainer : [...] state:P
  at sun/misc/Unsafe.park(Native Method)
  at
  java/util/concurrent/locks/LockSupport.park(LockSupport.java:169
  )
  at
  java/util/concurrent/locks/AbstractQueuedSynchronizer.parkAndChe
  ckInterrupt(AbstractQueuedSynchronizer.java:740)
  at
  java/util/concurrent/locks/AbstractQueuedSynchronizer.doAcquireS
  haredInterruptibly(AbstractQueuedSynchronizer.java:896)
  at
  java/util/concurrent/locks/AbstractQueuedSynchronizer.acquireSha
  redInterruptibly(AbstractQueuedSynchronizer.java:1203)
  at java/util/concurrent/Semaphore.acquire(Semaphore.java:287)
  at
  com/ibm/mm/proxy/connection/filter/endpoint/HttpUrlConnectionMan
  ager.acquireConnection(HttpUrlConnectionManager.java:89)
  at com/ibm/mm/proxy/connection/filter/endpoint/URLConnectionEnd
  pointFilter.connect(URLConnectionEndpointFilter.java:303)
  at
  com/ibm/mashups/proxy/connection/HttpURLConnectionFilter.connect
  (HttpURLConnectionFilter.java:161)
  

Problem conclusion

• Ajax Proxy upgrade to adopt latest fixes in Ajax Proxy Common
  Component.
  
  Failing Module(s):
     Engine: URL Generation
  
  Affected Users:
     All users
  
  Version Information:
     Portal Version(s): 6.1.0.3
      Pre-Requisite(s): ---
       Co-Requisite(s): ---
  
  Manuel Steps:
     None
  
  Platform Specific:
     This fix applies to all platforms.
  
  PM13820 is part of Cumulative Fix 05 for Portal 6.1.0.3 /
  6.1.5.0.
  
  The Cumulative Fix is available from Fix Central:
  
  http://www.ibm.com/eserver/support/fixes/fixcentral/swgquickorde
  r?apar=PM13061&productid=WebSphere%20Portal&brandid=5
  
  You may need to type or paste the complete address into your Web
  browser.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE PORTA

• Fixed component ID

  5724E7600

Applicable component levels

• R61C PSY

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