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1 Reply Latest reply: Feb 25, 2013 5:35 AM by 516802 RSS

Too many YGC in short period of time?

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We have a server and below is the jstat values. We notice the the
 
    Timestamp         S0     S1     E      O      P         YGC     YGCT       FGC    FGCT     GCT
      1118019.5  78.57   0.00  81.28  95.76  80.30  13078  708.590   107   16.394  724.984
      1118024.6  78.57   0.00  81.81  95.76  80.30  13078  708.590   107   16.394  724.984
      1118029.6   0.00  71.43   0.43  95.89  80.30  13079  708.592   107   16.394  724.986
      1118034.5   0.00  71.43   0.96  95.89  80.30  13079  708.592   107   16.394  724.986
      1118039.5   0.00  71.43   2.00  95.89  80.30  13079  708.592   107   16.394  724.986
      1118044.6   0.00  71.43   2.53  95.89  80.30  13079  708.592   107   16.394  724.986
      1118049.6   0.00  71.43  24.05  95.89  80.30  13079  708.592   107   16.394  724.986
      1118054.5   0.00  71.43  24.69  95.89  80.30  13079  708.592   107   16.394  724.986
      1118059.6   0.00  71.43  25.21  95.89  80.30  13079  708.592   107   16.394  724.986
Then we try to run gccause and below is the results.
 Timestamp         S0     S1     E      O      P     YGC     YGCT    FGC    FGCT     GCT    LGCC                 GCC
      1117986.5  78.57   0.00   0.32  95.76  80.30  13078  708.590   107   16.394  724.984 Allocation Failure   No GC
      1117991.6  78.57   0.00   0.85  95.76  80.30  13078  708.590   107   16.394  724.984 Allocation Failure   No GC
      1117996.6  78.57   0.00  22.27  95.76  80.30  13078  708.590   107   16.394  724.984 Allocation Failure   No GC
Just would like to confirm is this an alarming situation? What does it mean by Allocation Failure and No GC?

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