IC89342: SCP LOG TARGET MAY CAUSE SYSTEM HANG IF SCP SERVER IS UNRESPONSIVE

Fix packs for DataPower XML Security Gateway version 6.0
Fix packs for DataPower B2B Appliance version 6.0
Fix packs for DataPower Integration Appliance version 6.0
Fix packs for DataPower Low Latency Appliance version 6.0
Fix packs for DataPower Service Gateway version 6.0

APAR status

• Closed as fixed if next.

Error description

• SCP log target may cause system hang if the SCP server is
  unresponsive during time of file upload.
  
  The appliance may remain in a hung/wait state for up to 130
  seconds before it recovers and resumes processing.
  The log may show successive inactivity errors during the time
  of the hang:
  
  system,error,,,0,,0x80400025,,,"Watchdog system detects no
  activity for at least 49 seconds"
  
  system,critic,,,0,,0x80400025,,,"Watchdog system detects no
  activity for at least 50 seconds"
  
  
  Also, once the appliance recovers, the following log target
  errors may be seen at the end of the inactivity errors:
  
  [system][error] logging target(scp-log): tid(415730367): File
  not found.
  
  [system][error] logging target(scp-log): tid(415730367): Log
  upload of target scp-log failed.
  

Local fix

• Use Syslog log target instead.
  

Problem summary

• Affected are users of all firmware releases up to and including
  version 5.0.0.x using log targets with SCP or SFTP upload
  method.
  
  SCP/SFTP log target may cause system halt if the the
  target SCP/SFTP server is unresponsive during time of file
  upload.
  
  The appliance may remain in a wait state for up to 130
  seconds before it recovers and resumes processing.
  
  Fix will be provided in a next major release. No formal fix is
  planned for the current releases.
  

Problem conclusion

Temporary fix

• The safest workaround for the problem is to use upload method
  other than SCP or SFTP.
  

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

Applicable component levels

• R195 PSN

     UP