IT36411: MEMORY LEAK IN KAFKACONSUMER AND KAFKAPRODUCER NODES IF A CONNECTION CANNOT BE ESTABLISHED

APAR status

• Closed as program error.

Error description

• The KafkaConsumer and KafkaProducer nodes will leak a small
  amount of Java heap memory if they fail to establish a
  connection to the Kafka broker. This can accumulate over time
  and become noticeable if frequent connection errors are
  experienced by the message flow.
  
  The root cause of this issue
  is that the Kafka nodes do not correctly clean up all Kafka
  connection resources before discarding a failed connection.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of the KafkaProducer and KafkaConsumer nodes in IBM
  App Connect Enterprise V11 or V12
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The KafkaConsumer and KafkaProducer nodes will leak a small
  amount of Java heap memory if they fail to establish a
  connection to the Kafka broker. This can accumulate over time
  and become noticeable if frequent connection errors are
  experienced by the message flow.
  
  The root cause of this issue is that the Kafka nodes do not
  correctly clean up all Kafka connection resources before
  discarding a failed connection.
  

Problem conclusion

• These nodes now correctly clean up leftover Kafka resources.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v11.0      11.0.0.17
  v12.0      12.0.4.0
  
  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

  APP CONNECT ENT

• Fixed component ID

  5724J0550

Applicable component levels