IT26172: Attempting to download large files using webUI may result in MQ Appliance reload

APAR status

• Closed as program error.

Error description

• When downloading a large file from the WebGUI there might be
  some unexpected behavior such as the device becoming
  unresponsive and restarting.
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  IBM MQ Appliance V8 users
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The MQ Appliance webUI did not check that sufficient resources
  to serve the requested file were available prior to beginning
  the transfer. If resources became exhausted during the transfer,
  this could result in the request blocking, or the appliance
  restarting.
  

Problem conclusion

• Prior to servicing a file request, the MQ Appliance web UI will
  check that sufficient resources are available to serve the file.
  If insufficient resources are available, the download request is
  rejected with an appropriate message to the user.
  
  Alternate file transfer approaches, such as transfer to a remote
  SFTP target are unaffected.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.11
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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

  IBM MQ APPL M20

• Fixed component ID

  5725Z0900

Applicable component levels