PM11754: ECLIPSE MODELLING FRAMEWORK (EMF) GLOBAL VALIDATOR REGISTRY MEMORY LEAK

Fixes are available

APAR status

Closed as program error.

Error description

The Eclipse Modelling Framework (EMF) global validator registry
is implemented using static storage, and sees continuous growth
during long runs.
.
   The java heap will show the following objects in the heap
and these accumulate over time.
.
25,653,768 (35%) [32] 4 class
org/eclipse/emf/ecore/EValidator$Registry
 25,653,600 (35%) [48] 1
            org/eclipse/emf/ecore/impl/EValidatorRegistryImpl
  25,653,552 (35%) [272] 26 array of java/util/HashMap$Entry
   4,402,304 (6%) [32] 2 java/util/HashMap$Entry

This shows thatthere are 26 objects on the heap that appear to
be allocated to a HashMap from EMF code.

.
25,653,768 (35%) [32] 4 class
org/eclipse/emf/ecore/EValidator$Registry
0xa0a000
 25,653,600 (35%) [48] 1
org/eclipse/emf/ecore/impl/EValidatorRegistryImpl 0xa0ce18
  25,653,552 (35%) [272] 26 array of java/util/HashMap$Entry
0x467c950
   4,402,304 (6%) [32] 2 java/util/HashMap$Entry 0x45cda70
   4,164,056 (5%) [32] 2 java/util/HashMap$Entry 0x41d4588
   4,164,056 (5%) [32] 2 java/util/HashMap$Entry 0x473a008
   3,875,384 (5%) [32] 3 java/util/HashMap$Entry 0x4dc3ee0
   3,666,728 (5%) [32] 3 java/util/HashMap$Entry 0x36d1638
    (more)
.
.-------------------------------------------
5,327,320 (5%) [56] 4 class
org/eclipse/emf/ecore/EValidator$Registry
 5,327,120 (5%) [48] 1
org/eclipse/emf/ecore/impl/EValidatorRegistryImpl
  5,327,072 (5%) [152] 7 array of java/util/HashMap$Entry
0x10097660
   3,768,816 (3%) [32] 2 java/util/HashMap$Entry 0x12504dd8
   1,234,272 (1%) [32] 3 java/util/HashMap$Entry 0x12613700
   323,640 (0%) [32] 2 java/util/HashMap$Entry 0x100daeb0
   ...

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V7.0                                 *
****************************************************************
* PROBLEM DESCRIPTION: Eclipse Modeling Framework (EMF)        *
*                      global registries see continuous        *
*                      growth on module restarts.              *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
For Java Enterprise Application Modules which make use of
Eclipse Modeling Framework (EMF) metadata, each start of the
module adds an entry to a static model package registry and,
if enabled to use validators, adds an entry to a static
validator registry.

During repeated restarts of the module, this manifests as a
memory leak, as the entries added to the package registry and
the entries added to the validator registry are never released.

Problem conclusion

A new API was added to the static model package registry to
enable model packages associated with a module to be released.
Changes were made to runtime containers to perform explicit
releases when shutting down a module.

The fix for this APAR is currently targeted for inclusion in
fix pack 7.0.0.13.  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
PM11754
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-04-07
Closed date
2010-08-06
Last modified date
2012-03-30

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 APP S
Fixed component ID
5724J0800

Applicable component levels

R700 PSY
UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"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:
24 October 2021

Tips

PM11754: ECLIPSE MODELLING FRAMEWORK (EMF) GLOBAL VALIDATOR REGISTRY MEMORY LEAK

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

R700 PSY

Document Information

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