LO81493: VERY LARGE PLAIN TEXT MAIL BODY CAN CAUSE HIGH CPU USAGE

APAR status

• Closed as program error.

Error description

• Notes Traveler must perform some special processing on plain
  text email bodies before they are synchronized to Apple iOS
  devices in order for the messages to render properly.  A
  performance issue has been identified in one of the algorithms
  used to process these plain text messages and is repaired with
  this APAR fix.  The symptom would be extremely high CPU usage on
  the Traveler server if one or more devices were syncing mail
  messages with plain text bodies > several megabytes in size.
  These types of messages are typically rare and are typically
  generated by machines instead of normal mail correspondence.
  

Local fix

• If you were experiencing this probelm prior to the APAR patch,
  the only know workaround is to set the following value in
  notes.ini on your Traveler server(s):
  
  NTS_BODY_THRESHOLD=2048000
  
  This causes Traveler to artificially limit all mail bodies to
  2MB in size.
  

Problem summary

• Though not common, some e-mails have been seen to contain very
  large plain text message bodies which can effect server
  performance processing the message.  These message bodies were
  seen at multiple MBs of plain text content.
  

Problem conclusion

• The Notes Traveler server has been updated to process these
  large documents efficiently as intended.
  

Temporary fix

• This fix is included in Notes Traveler 8.5.3 UP2 IF7, 9.0.0.1
  If7 and 9.0.1 IF6 and will be included in any future releases.
  
  See this technote for the latest maintenance infomation:
  http://www.ibm.com/support/docview.wss?uid=swg24019529
  

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

  LOTUS NOTES TRA

• Fixed component ID

  5724E6204

Applicable component levels

• R853 PSY

     UP

• R900 PSY

     UP

• R901 PSY

     UP