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PI21685: OutOfMemoryError java.util.concurrent.LinkedBlockingQueue owned by BBDescriptionManager$UpdateThread

Fixes are available

8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

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APAR status

  • Closed as program error.

Error description

  • OutOfMemoryError is running in
BBDescriptionManager.$UpdateThread.

3XMTHREADINFO      "Thread-15" J9VMThread:0x0000000010DFFF00,
j9thread_t:0x00007F3880CDCC70,
java/lang/Thread:0x0000000000BC8328,
state:R, prio=5
3XMTHREADINFO1            (native thread ID:0x3B49, native
priority:0x5,
native policy:UNKNOWN)
3XMTHREADINFO2            (native stack address range
from:0x00007F3886F4A000, to:0x00007F3886F8B000, size:0x41000)
3XMTHREADINFO3           Java callstack:
4XESTACKTRACE                at
java/util/Arrays.copyOfRange(Arrays.java:4138(Compiled Code))
4XESTACKTRACE                at
java/util/Arrays.copyOf(Arrays.java(Compiled Code))
4XESTACKTRACE                at
java/io/ByteArrayOutputStream.write(ByteArrayOutputStream.java:1
06(Compi
led Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/Compressor.decompress(Compressor.java:191(Com
piled
Code))Page 37 of 41
4XESTACKTRACE                at
com/ibm/ws/cluster/topography/DescriptionManagerA.divideMultiple
Inputs(D
escriptionManagerA.java:700(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/topography/DescriptionManagerA.update(Descrip
tionMana
gerA.java:414(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r.common
Update(BBDescriptionManager.java:882(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r.access
$400(BBDescriptionManager.java(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r$Update
Thread.performUpdate(BBDescriptionManager.java:943(Compiled
Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r$Update
Thread.run(BBDescriptionManager.java:922)

BBDescriptionManager$UpdateThread lacks a try/catch for this
type of
exception so the thread running this code terminates.  However
BBDescriptionManager continues to queue work to the
LinkedBlockingQueue
associated with this thread.  Thus the LinkedBlockingQueue grows
indefinitely causing subsequent memory problems.

Local fix

  • N/A

Problem summary

  • ****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server                                      *
****************************************************************
* PROBLEM DESCRIPTION: BBDescriptionManager continues to       *
*                      queue work elsewhere after              *
*                      OutOfMemoryError                        *
*                      causing indefinite queue growth.        *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
After the OutOfMemoryError is thrown, the related thread
terminates
but BBDescriptionManager continues to queue work on
LinkedBlockingQueue. This queue will continue to grow
indefinitely
as BBDescriptionManager processes work, causing further
memory problems. The following thread failure is observed:
OutOfMemoryError is running in
BBDescriptionManager.$UpdateThread.
3XMTHREADINFO      "Thread-15" J9VMThread:0x0000000010DFFF00,
j9thread_t:0x00007F3880CDCC70,
java/lang/Thread:0x0000000000BC8328,
state:R, prio=5
3XMTHREADINFO1            (native thread ID:0x3B49, native
priority:0x5,
native policy:UNKNOWN)
3XMTHREADINFO2            (native stack address range
from:0x00007F3886F4A000, to:0x00007F3886F8B000, size:0x41000)
3XMTHREADINFO3           Java callstack:
4XESTACKTRACE                at
java/util/Arrays.copyOfRange(Arrays.java:4138(Compiled Code))
4XESTACKTRACE                at
java/util/Arrays.copyOf(Arrays.java(Compiled Code))
4XESTACKTRACE                at
java/io/ByteArrayOutputStream.write(ByteArrayOutputStream.java:1
06(Compi
led Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/Compressor.decompress(Compressor.java:191(Com
piled
Code))Page 37 of 41
4XESTACKTRACE                at
com/ibm/ws/cluster/topography/DescriptionManagerA.divideMultiple
Inputs(D
escriptionManagerA.java:700(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/topography/DescriptionManagerA.update(Descrip
tionMana
gerA.java:414(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r.common
Update(BBDescriptionManager.java:882(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r.access
$400(BBDescriptionManager.java(Compiled Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r$Update
Thread.performUpdate(BBDescriptionManager.java:943(Compiled
Code))
4XESTACKTRACE                at
com/ibm/ws/cluster/propagation/bulletinboard/BBDescriptionManage
r$Update
Thread.run(BBDescriptionManager.java:922)

Problem conclusion

  • A try/catch was added to handle OutOfMemoryError so the thread
does not terminate.

The fix for this APAR is currently targeted for inclusion in
fix pack 7.0.0.37, 8.0.0.10, 8.5.5.4 .  Please refer to the
Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI21685
    • 

  • Reported component name
    WEBS APP SERV N
    • 

  • Reported component ID
    5724H8800
    • 

  • Reported release
    700
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2014-07-09
    • 

  • Closed date
    2014-08-25
    • 

  • Last modified date
    2014-08-25
    • 





    

  • 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
    WEBS APP SERV N
    • 

  • Fixed component ID
    5724H8800
    • 



Applicable component levels


    

  • R700  PSY
       UP
    • 

  • R800  PSY
       UP
    • 

  • R850  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            28 April 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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