PI60120: 0C4 ABEND IN STDDICTIONARYINFO DESTRUCTOR

APAR status

• Closed as program error.

Error description

• The following abend stack trace is the result of accessing
  storage in the CacheManager that is no longer valid:
  
  StdDictionaryInfo::¯StdDictionaryInfo()
  RMCacheEntry::¯RMCacheEntry()
  CacheManager::garbageCollect(short)
  ResourceManager::rmFindDictionary(const unsigned short*)
  MtiImbParserFactory::deployedResourceManager(const ImbWstrin
  ImbDeployedResourceGroup::deployedResourceManager(const ImbW
  ImbDataFlowApplication::deployedResourceManager(const ImbWst
  CpContext::loadDictionary(const ImbWstring&)
  CpContext::initialize(MtiImbSyntaxElement*)
  MtiImbParser::loadParserResources()
  
  A review of the nthreads in the abend dump show that multiple
  threads are accessing this storage cell simultaneously, as the
  CacheManager is not thread safe.
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere Message Broker v8.0 and IBM Integration
  Bus v9.0 and v10.0 using the MRM with additional instances.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  There is a very small timing window such that if multiple
  threads access the MRM dictionary CacheManager at the exact same
  time, an abend with the following trace back stack may occur:
  
  StdDictionaryInfo::¯StdDictionaryInfo()
  RMCacheEntry::¯RMCacheEntry()
  CacheManager::garbageCollect(short)
  ResourceManager::rmFindDictionary(const unsigned short*)
  MtiImbParserFactory::deployedResourceManager(const ImbWstrin
  ImbDeployedResourceGroup::deployedResourceManager(const ImbW
  ImbDataFlowApplication::deployedResourceManager(const ImbWst
  CpContext::loadDictionary(const ImbWstring&)
  CpContext::initialize(MtiImbSyntaxElement*)
  MtiImbParser::loadParserResources()
  
  
  There are a number of resource name changes between WebSphere
  Message Broker and IBM Integration Bus Version 9.0.  For details
  visit
  http://pic.dhe.ibm.com/infocenter/wmbhelp/v9r0m0/topic/com.ibm.e
  tools.mft.doc/bb23814_.htm
  

Problem conclusion

• The product uses a lock to prevent multiple thread access to the
  MRM dictionary CacheManager.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.6
  v8.0       8.0.0.8
  v9.0       9.0.0.6
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  WEB MB Z/OS

• Fixed component ID

  5697P4400

Applicable component levels

• R800 PSY

     UP