IV62337: OutOfMemory (OOM) in Proxy JVM when many Custom AppServerTemplates are in memory.

APAR status

• Closed as program error.

Error description

• TADDM runs a query like the below to collect appserver template
  data each minute.
  .
  "SELECT * from
  com.collation.platform.model.discovery.template.AppServerTemplat
  e WHERE not internal"
  
  
  This information is placed in memory and not removed. Over time
  this can lead to an OOM in Proxy service.
  
  
  In the heap dump memory analyzer results you will see the
  majority of the heap consists of;
  
  The class "com.ibm.cdb.api.server.ApiServerWorker", loaded by
  "<system
  class loader>", occupies 786,192,952 (74.02%) bytes. The memory
  is
  accumulated in one instance of "java.util.HashMap$Entry[]"
  loaded by
  "<system class loader>".
  

Local fix

• NA
  

Problem summary

• TADDM runs a query like the below to collect appserver template
  data each minute.
  .
  "SELECT * from
  com.collation.platform.model.discovery.template.AppServerTemplat
  e WHERE not internal"
  
  
  This information is placed in memory and not removed. Over time
  this can lead to an OOM in Proxy service.
  
  
  In the heap dump memory analyzer results you will see the
  majority of the heap consists of;
  
  The class "com.ibm.cdb.api.server.ApiServerWorker", loaded by
  "<system
  class loader>", occupies 786,192,952 (74.02%) bytes. The memory
  is
  accumulated in one instance of "java.util.HashMap$Entry[]"
  loaded by
  "<system class loader>".
  

Problem conclusion

• The fix for this APAR is contained in the following maintenance
  packages:
  | Fix Pack | 7.2.2-TIV-ITADDM-FP0003
  Check the IBM Software Support web site for availability of the
  above maintenance packages.
  

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

  APP DEPENDENCY

• Fixed component ID

  5724N5500

Applicable component levels

• R722 PSY

     UP