IT18716: VERY LARGE LINKEDLIST OBJECTS CAUSE OUT OF MEMORY STATE

si_52_build_5020500_interimfix_15
si_52_build_5020500_interimfix_15

APAR status

• Closed as program error.

Error description

• Very large com.maverick.sshd.Chanel$_I LinkedList objects cause
  the heap to run out of memory.
  

Local fix

Problem summary

• Users Affected:
  All
  
  Problem Summary:
  SFTP server causes a "out of memory" state to occur when you
  download 4.6GB corrupted file for around 180 times continuously.
  
  It is observered in the heap dumps that the maverick jar leaks
  few LinkedList objects.
  
  One instance of "com.maverick.nio.SelectorThread" loaded by
  "<system class loader>" occupies 1,997,243,640 (18.50%) bytes.
  The memory is accumulated in one instance of
  "java.util.LinkedList" loaded by "<system class loader>".
  
  Platforms Affected:
  All
  

Problem conclusion

• Resolution Summary:
  A code fix is provided.
  
  Delivered In:
  5020500_15
  5020601_7
  5020603_1
  

Temporary fix

Comments

• Published On: 02-FEB-2017
  

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

  STR B2B INTEGRA

• Fixed component ID

  5725D0600

Applicable component levels