PM54414: OUTOFMEMORY CAUSED BY CCL LEAK IN ORB Z/OS BECAUSE OF RESIDUE REFERENCES IN COM/IBM/EJS/CONTAINER/UTIL/BYTEARRAY

Fixes are available

APAR status

Closed as program error.

Error description

Customer experienced java.lang.OutOfMemoryError in native
storage. The following is the reference chain

0x39da51e8 com/ibm/ws/classloader/CompoundClassLoader

 0x39e0c6d0 com/ibm/ejs/container/BeanMetaData
  0x38c87e80 com/ibm/ejs/container/EJBMethodInfoImpl
   0x39e1d9f0 &#65517;Lcom/ibm/ejs/container/EJBMethodInfoImpl;
    0x39e0d930 com/ibm/websphere/startupservice/EJSRemoteStatele
               ssCWBSCCStartupBean_3f303fc8
     0x39dcf6b8 com/ibm/ejs/container/EJSWrapperCommon
      0x39e0b590 com/ibm/websphere/startupservice/EJSStatelessCW
                 BSCCStartupBeanHomeBean_3f303fc8
       0x39e1c660 com/ibm/ejs/container/BeanId
        0x39e0d910 com/ibm/ejs/container/util/ByteArray
         0x38c8aa88 com/ibm/ws390/orb/ClientDelegate
          0x4193d428 com/ibm/websphere/startupservice/_EJSRemote
                     StatelessCWBSCCStartupBean_3f303fc8_Tie
           0x4193d3e8 com/ibm/websphere/startupservice/EJSRemote
                      StatelessCWBSCCStartupBean_3f303fc8
            0x41933880 com/ibm/ejs/container/EJSWrapperCommon
             0x39db50c8 [Lcom/ibm/ejs/container/EJSWrapperCommon
                        ;
              0x3645d6c0 com/ibm/ejs/util/cache/WrapperBucket
               0x36480278 &#65517;Lcom/ibm/ejs/util/cache/Bucket;
                0x36419128 com/ibm/ejs/util/cache/Cache

The com/ibm/ejs/container/util/ByteArray referenced by
com/ibm/ws390/orb/ClientDelegate was not cleared causing residue
reference to old objects belongs to stopped CCL.

Local fix

CCL leak triggered by restarting application. Preventing
application restart may bypass the problem.

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V6.1 and V8.0                        *
****************************************************************
* PROBLEM DESCRIPTION: WebSphere Application Server for z/OS   *
*                      Servant Region caused a classloader     *
*                      leak when the application restarts.     *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When an application is restarted, stale references to the
classloader for the previous instance of the application are
maintained, causing a classloader leak in the Servant
address space.

Problem conclusion

Code was updated so that when the application is restarted,
stale references to the classloader for the previous
instance of the application are removed.

APAR PM54414 is currently targeted for inclusion in Service
Level (Fix Pack) 6.1.0.45 of WebSphere Application Server V6.1
and Fix Pack 8.0.0.4 of WebSphere Application Server V8.0.

The fix will also be delivered as sysrouted APAR PM60815 in
WebSphere Application Server V7.0 Fix Pack 7.0.0.25.

Please refer to URL:
//www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack availability.

Temporary fix

Comments

APAR Information

APAR number
PM54414
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-12-14
Closed date
2012-03-20
Last modified date
2012-10-16

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

PM60815

Fix information

Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R610 PSY UK81646
UP12/09/23 P F209

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021

Tips

PM54414: OUTOFMEMORY CAUSED BY CCL LEAK IN ORB Z/OS BECAUSE OF RESIDUE REFERENCES IN COM/IBM/EJS/CONTAINER/UTIL/BYTEARRAY

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R610 PSY UK81646

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

Document Information

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