2271173 - Memory usage is growing rapidly and not being released - SAP ASE on AIX | SAP Knowledge Base Article

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2271173 - Memory usage is growing rapidly and not being released - SAP ASE on AIX

Symptom

  • Memory usage in ASE is growing on dataserver pids.
  • The svmon output is showing memory Inuse growing rapidly.
  • For example:

svmon before reboot
 
   svmon -P -O summary=basic,unit=MB
   Unit: MB

 -------------------------------------------------------------------------------
     Pid Command          Inuse      Pin     Pgsp  Virtual
 6619180 dataserver    168329.35     39.9 86089.55 177333.82
 2556272 dataserver    168257.85     39.9 86127.35 177300.29
 5571028 dataserver    168246.51     39.9 86077.23 177238.76
 3604814 dataserver    168241.15     39.9 86081.00 177237.32
 6881294 dataserver    168240.64     39.9 86081.71 177237.43
 5701894 dataserver    168240.63     39.9 86081.66 177237.35
 5439508 dataserver    168239.95     39.9 86072.95 177227.98
 5636562 dataserver    168239.84     39.9 86072.91 177227.85
 
svmon after reboot
 
     svmon -P -O summary=basic,unit=MB
     Mon Jan  4 17:23:38 CST 2016
     Unit: MB
 
-------------------------------------------------------------------------------
     Pid Command          Inuse      Pin     Pgsp  Virtual
 4850086 dataserver    25262.54     39.9        0 25236.75
 7536868 dataserver    25262.27     39.9        0 25236.48
 5243340 dataserver    25261.03     39.9        0 25235.24
 7667714 dataserver    25260.86     39.9        0 25235.07
 3473854 dataserver    25260.86     39.9        0 25235.07
 4784396 dataserver    25260.55     39.9        0 25234.77
 5571022 dataserver    25260.32     39.9        0 25234.54
 4718972 dataserver    25260.25     39.9        0 25234.46

svmon reported 2 days later
 
      svmon -P -O summary=basic,unit=MB
      Wed Jan  6 10:11:22 CST 2016
      Unit: MB
 
-------------------------------------------------------------------------------
     Pid Command          Inuse      Pin     Pgsp  Virtual
 7536868 dataserver    72420.48     39.9        0 72392.02
 4850086 dataserver    72413.41     39.9        0 72384.96
 5243340 dataserver    72412.41     39.9        0 72383.95
 4784396 dataserver    72412.14     39.9        0 72383.69
 5571022 dataserver    72412.11     39.9        0 72383.65
 3473854 dataserver    72412.07     39.9        0 72383.61
 7667714 dataserver    72412.07     39.9        0 72383.61
 4718972 dataserver    72412.01     39.9        0 72383.55


Read more...

Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • AIX

Product

SAP Adaptive Server Enterprise 15.7

Keywords

leak, max, memory, physical, LPAR, host , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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