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From "Mark Boot (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-3509) qpid-stats shows msgOut is greater than msgIn - resulting in counter underflow
Date Tue, 27 Sep 2011 18:39:45 GMT
qpid-stats shows msgOut is greater than msgIn - resulting in counter underflow
------------------------------------------------------------------------------

                 Key: QPID-3509
                 URL: https://issues.apache.org/jira/browse/QPID-3509
             Project: Qpid
          Issue Type: Bug
    Affects Versions: 0.10
         Environment: Linux blade system running Ubuntu 10.04
            Reporter: Mark Boot


qpid-stat shows that the number of msgOut is greater than the number of msgIn resulting in
counter underflow.

In this example it occurred in AE.Queue4 but it has also been reproduced with other queues


$ PYTHONPATH=../python/ ./qpid-stat -q
Queues
  queue                                      dur  autoDel  excl  msg    msgIn  msgOut  bytes
 bytesIn  bytesOut  cons  bind
  ===========================================================================================================================
  AE.Queue1                                                      24.7k   409k   384k    434m
 3.19g    2.75g        1     3
  AE.Queue2                                                      30.8k   423k   392k    312m
 3.21g    2.89g        1     3
  AE.Queue3                                                      24.1k   409k   385k    416m
 3.19g    2.77g        1     3
  AE.Queue4                                                      4.29g  50.6k  53.6k    306m
 3.17g    2.86g        1     3
  AE.Queue6                                                      29.9k   409k   379k    535m
 3.20g    2.67g        1     3
  topic-LAB.5247.1                                Y        Y        0      0      0      
0      0        0         1     4
  qmfc-v2.5247.1                                  Y        Y        0     11     11      
0   22.8k    22.8k        1     2
  b8c26cc7-2047-4646-bf68-986a94a9b75c#           Y                 0     68     68      
0    845k     845k        1     1
  AE.Queue5                                                      38.1k   428k   390k    723m
 3.20g    2.48g        1     3
  qmfc-v2-ui.5247.1                               Y        Y        0      0      0      
0      0        0         1     1
  AE.Queue7                                                      24.1k   409k   385k    412m
 3.19g    2.78g        1     3
  qmfc-v2-hb.5247.1                               Y        Y        0      0      0      
0      0        0         1     2
  R.Notes                                                         125k   409k   284k   2.49g
 3.72g    1.22g        1    19
  reply.5247.1                                    Y        Y        0     58     58      
0   22.2k    22.2k        1     2
  Udr                                                            4.71k   358k   353k   6.81m
  546m     539m        1     2

$ PYTHONPATH=../python/ ./qpid-stat -q
Queues
  queue                                      dur  autoDel  excl  msg    msgIn  msgOut  bytes
 bytesIn  bytesOut  cons  bind
  ===========================================================================================================================
  topic.5285.1                                    Y        Y        0      0      0      
0      0        0         1     4
  AE.Queue1                                                      18.3k   410k   392k    419m
 3.26g    2.84g        1     3
  qmfc-v2-ui.5285.1                               Y        Y        0      0      0      
0      0        0         1     1
  AE.Queue2                                                      24.2k   424k   400k    296m
 3.28g    2.98g        1     3
  reply.5285.1                                    Y        Y        0     58     58      
0   22.2k    22.2k        1     2
  AE.Queue3                                                      17.8k   410k   392k    403m
 3.26g    2.86g        1     3
  qmfc-v2.5285.1                                  Y        Y        0     11     11      
0   22.8k    22.8k        1     2
  AE.Queue4                                                      4.29g  50.8k  55.1k    288m
 3.24g    2.95g        1     3
  AE.Queue6                                                      23.9k   410k   386k    523m
 3.27g    2.75g        1     3
  b8c26cc7-2047-4646-bf68-986a94a9b75c#           Y                 0     69     69      
0    857k     857k        1     1
  AE.Queue5                                                      32.5k   429k   397k    719m
 3.27g    2.55g        1     3
  AE.Queue7                                                      17.6k   410k   393k    397m
 3.26g    2.86g        1     3
  R.Notes                                                         125k   410k   285k   2.53g
 3.79g    1.26g        1    19
  qmfc-v2-hb.5285.1                               Y        Y        0      0      0      
0      0        0         1     2
  Udr                                                            5.90k   359k   353k   8.51m
  548m     539m        1     2


> show queue-sizes  
                                                 CURRENT                      
                                                 QUEUE    TOTAL     TOTAL     
SLOT  QUEUE NAME                                 DEPTH    ENQUEUES  DEQUEUES  
------------------------------------------------------------------------------
2     AE.Queue4                                  607      49957     49350     
2     AE.Queue1                                  39741    405541    365800    
2     AE.Queue6                                  43976    405474    361498    
2     AE.Queue2                                  48415    419741    371326    
2     AE.Queue7                                  38957    405494    366537    
2     AE.Queue5                                  51589    424774    373185    
2     AE.Queue3                                  39066    405531    366465    
2     R.Notes                                    125171   405468    280297    
2     Udr                                        1563     355500    353937    

[ok][2011-09-22 18:30:29]
> show queue-sizes 
                                                 CURRENT                         
                                                 QUEUE       TOTAL     TOTAL     
SLOT  QUEUE NAME                                 DEPTH       ENQUEUES  DEQUEUES  
---------------------------------------------------------------------------------
2     AE.Queue4                                  4294966598  50200     50898     
2     AE.Queue1                                  32987       406690    373703    
2     AE.Queue6                                  36823       406619    369796    
2     AE.Queue2                                  37672       420740    383068    
2     AE.Queue7                                  32352       406640    374288    
2     AE.Queue5                                  45364       425924    380560    
2     AE.Queue3                                  32412       406679    374267    
2     R.Notes                                    125171      406611    281440    
2     Udr                                        2463        356400    353937    

[ok][2011-09-22 18:31:11]
> show queue-sizes 
                                                 CURRENT                         
                                                 QUEUE       TOTAL     TOTAL     
SLOT  QUEUE NAME                                 DEPTH       ENQUEUES  DEQUEUES  
---------------------------------------------------------------------------------
2     AE.Queue4                                  4294966472  50218     51042     
2     AE.Queue1                                  32189       406805    374616    
2     AE.Queue6                                  36531       406734    370203    
2     AE.Queue2                                  36498       420961    384463    
2     AE.Queue7                                  31871       406754    374883    
2     AE.Queue5                                  44666       426039    381373    
2     AE.Queue3                                  31881       406794    374913    
2     R.Notes                                    125171      406726    281555    
2     Udr                                        2561        356498    353937    

[ok][2011-09-22 18:31:15]
> show queue-sizes 
                                                 CURRENT                         
                                                 QUEUE       TOTAL     TOTAL     
SLOT  QUEUE NAME                                 DEPTH       ENQUEUES  DEQUEUES  
---------------------------------------------------------------------------------
2     AE.Queue4                                  4294963709  50659     54246     
2     AE.Queue1                                  22778       409823    387045    
2     AE.Queue6                                  28114       409747    381633    
2     AE.Queue2                                  29024       423850    394826    
2     AE.Queue7                                  22204       409766    387562    
2     AE.Queue5                                  36500       429056    392556    
2     AE.Queue3                                  22416       409813    387397    
2     R.Notes                                    125171      409740    284569    
2     Udr                                        5133        359070    353937    

[ok][2011-09-22 18:32:46]



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