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Posted to user@cassandra.apache.org by Jason Wee <pe...@gmail.com> on 2015/03/04 13:58:57 UTC

cassandra node jvm stall intermittently

Hi, our cassandra node using java 7 update 72 and we ran jstat on one of
the node, and notice some strange behaviour as indicated by output below.
any idea why when eden space stay the same for few seconds like 100% and
18.02% for few seconds? we suspect such "stalling" cause timeout to our
cluster.

any idea what happened, what went wrong and what could cause this?


$ jstat -gcutil 32276 1s

  0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
  0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
  0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
  0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639
  0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679
  0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679
 14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705
 14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705
  0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731


thanks.

jason

Re: cassandra node jvm stall intermittently

Posted by Jason Wee <pe...@gmail.com>.
heh on the midst of upgrading , Rob ;-)

Jason

On Tue, Mar 10, 2015 at 2:04 AM, Robert Coli <rc...@eventbrite.com> wrote:
> On Sat, Mar 7, 2015 at 1:44 AM, Jason Wee <pe...@gmail.com> wrote:
>>
>> hey Ali, 1.0.8
>>
>> On Sat, Mar 7, 2015 at 5:20 PM, Ali Akhtar <al...@gmail.com> wrote:
>>>
>>> What version are you running?
>
>
> Upgrade your very old version to at least 1.2.x (via 1.1.x) ASAP.
>
> =Rob
>

Re: cassandra node jvm stall intermittently

Posted by Robert Coli <rc...@eventbrite.com>.
On Sat, Mar 7, 2015 at 1:44 AM, Jason Wee <pe...@gmail.com> wrote:

> hey Ali, 1.0.8
>
> On Sat, Mar 7, 2015 at 5:20 PM, Ali Akhtar <al...@gmail.com> wrote:
>
>> What version are you running?
>>
>
Upgrade your very old version to at least 1.2.x (via 1.1.x) ASAP.

=Rob

Re: cassandra node jvm stall intermittently

Posted by Jason Wee <pe...@gmail.com>.
hey Ali, 1.0.8

On Sat, Mar 7, 2015 at 5:20 PM, Ali Akhtar <al...@gmail.com> wrote:

> What version are you running?
>
> On Sat, Mar 7, 2015 at 2:14 PM, Jason Wee <pe...@gmail.com> wrote:
>
>>
>> Hi Jan, thanks for your time to prepare the question and answer below,
>>
>>
>>    - How many nodes do you have on the ring ?
>>    12
>>
>>    - What is the activity when this occurs  - reads / writes/
>>    compactions  ?
>>    This cluster has a lot of writes and read. off peak period, ops
>>    center shown cluster write is about 5k/sec, read about 1k/sec and during
>>    peak period, write could be 22k/sec and read about 10k/sec. So this
>>    particular one node hang like every moment irrespect if it is peak or non
>>    peak, or compaction.
>>
>>    - Is there anything that is unique about this node that makes it
>>    different from the other nodes ?
>>    Our nodes are same in term of operating system (centos 6) and
>>    cassandra configuration settings. Other than that, there are no other
>>    resources intensive application running in cassandra nodes.
>>
>>
>>    - Is this a periodic occurance OR a single occurence -   I am trying
>>    to determine a pattern about when this shows up.
>>    it *always* happened and in fact, it is happening now.
>>
>>    - What is the load distribution the ring (ie: is this node carrying
>>    more load than the others).
>>    As of this moment,
>>
>>    - Address         DC          Rack        Status State   Load
>>       Owns    Token
>>    -
>>               155962751505430129087380028406227096910
>>    - <node1>      us-east     1e          Up     Normal  498.66 GB
>>    8.33%   0
>>    - <node2>      us-east     1e          Up     Normal  503.36 GB
>>    8.33%   14178431955039102644307275309657008810
>>    - <node3>      us-east     1e          Up     Normal  492.08 GB
>>    8.33%   28356863910078205288614550619314017619
>>    - <node4>      us-east     1e          Up     Normal  499.54 GB
>>    8.33%   42535295865117307932921825928971026430
>>    - <node5>      us-east     1e          Up     Normal  523.76 GB
>>    8.33%   56713727820156407428984779325531226109
>>    - <node6>      us-east     1e          Up     Normal  515.36 GB
>>    8.33%   70892159775195513221536376548285044050
>>    - <node7>      us-east     1e          Up     Normal  588.93 GB
>>    8.33%   85070591730234615865843651857942052860
>>    - <node8>      us-east     1e          Up     Normal  498.51 GB
>>    8.33%   99249023685273718510150927167599061670
>>    - <node9>      us-east     1e          Up     Normal  531.81 GB
>>    8.33%   113427455640312814857969558651062452221
>>    - <node10>     us-east     1e          Up     Normal  501.85 GB
>>    8.33%   127605887595351923798765477786913079290
>>    - <node11>     us-east     1e          Up     Normal  501.13 GB
>>    8.33%   141784319550391026443072753096570088100
>>    - <node12>     us-east     1e          Up     Normal  508.45 GB
>>    8.33%   155962751505430129087380028406227096910
>>
>>    so that one node is node5. At this instance ring output, yea, it is
>>    second highest in the ring but unlikely this is the cause.
>>
>>
>> Jason
>>
>> On Sat, Mar 7, 2015 at 3:35 PM, Jan <cn...@yahoo.com> wrote:
>>
>>> HI Jason;
>>>
>>> The single node showing the anomaly is a hint that the problem is
>>> probably local to a node (as you suspected).
>>>
>>>    - How many nodes do you have on the ring ?
>>>    - What is the activity when this occurs  - reads / writes/
>>>    compactions  ?
>>>    - Is there anything that is unique about this node that makes it
>>>    different from the other nodes ?
>>>    - Is this a periodic occurance OR a single occurence -   I am trying
>>>    to determine a pattern about when this shows up.
>>>    - What is the load distribution the ring (ie: is this node carrying
>>>    more load than the others).
>>>
>>>
>>> The system.log should have  more info.,    about it.
>>>
>>> hope this helps
>>> Jan/
>>>
>>>
>>>
>>>
>>>
>>>   On Friday, March 6, 2015 4:50 AM, Jason Wee <pe...@gmail.com>
>>> wrote:
>>>
>>>
>>> well, StatusLogger.java started shown in cassandra
>>> system.log, MessagingService.java also shown some stage (e.g. read,
>>> mutation) dropped.
>>>
>>> It's strange it only happen in this node but this type of message does
>>> not shown in other node log file at the same time...
>>>
>>> Jason
>>>
>>> On Thu, Mar 5, 2015 at 4:26 AM, Jan <cn...@yahoo.com> wrote:
>>>
>>> HI Jason;
>>>
>>> Whats in the log files at the moment jstat shows 100%.
>>> What is the activity on the cluster & the node at the specific point in
>>> time (reads/ writes/ joins etc)
>>>
>>> Jan/
>>>
>>>
>>>   On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com>
>>> wrote:
>>>
>>>
>>> Hi, our cassandra node using java 7 update 72 and we ran jstat on one of
>>> the node, and notice some strange behaviour as indicated by output below.
>>> any idea why when eden space stay the same for few seconds like 100% and
>>> 18.02% for few seconds? we suspect such "stalling" cause timeout to our
>>> cluster.
>>>
>>> any idea what happened, what went wrong and what could cause this?
>>>
>>>
>>> $ jstat -gcutil 32276 1s
>>>
>>>   0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056
>>> 73.493
>>>   0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056
>>> 73.544
>>>   0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056
>>> 73.590
>>>   0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056
>>> 73.639
>>>   0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056
>>> 73.679
>>>   0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056
>>> 73.679
>>>  14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056
>>> 73.705
>>>  14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056
>>> 73.705
>>>   0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056
>>> 73.731
>>>
>>>
>>> thanks.
>>>
>>> jason
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>

Re: cassandra node jvm stall intermittently

Posted by Ali Akhtar <al...@gmail.com>.
What version are you running?

On Sat, Mar 7, 2015 at 2:14 PM, Jason Wee <pe...@gmail.com> wrote:

>
> Hi Jan, thanks for your time to prepare the question and answer below,
>
>
>    - How many nodes do you have on the ring ?
>    12
>
>    - What is the activity when this occurs  - reads / writes/ compactions
>     ?
>    This cluster has a lot of writes and read. off peak period, ops center
>    shown cluster write is about 5k/sec, read about 1k/sec and during peak
>    period, write could be 22k/sec and read about 10k/sec. So this particular
>    one node hang like every moment irrespect if it is peak or non peak, or
>    compaction.
>
>    - Is there anything that is unique about this node that makes it
>    different from the other nodes ?
>    Our nodes are same in term of operating system (centos 6) and
>    cassandra configuration settings. Other than that, there are no other
>    resources intensive application running in cassandra nodes.
>
>
>    - Is this a periodic occurance OR a single occurence -   I am trying
>    to determine a pattern about when this shows up.
>    it *always* happened and in fact, it is happening now.
>
>    - What is the load distribution the ring (ie: is this node carrying
>    more load than the others).
>    As of this moment,
>
>    - Address         DC          Rack        Status State   Load
>       Owns    Token
>    -
>               155962751505430129087380028406227096910
>    - <node1>      us-east     1e          Up     Normal  498.66 GB
>    8.33%   0
>    - <node2>      us-east     1e          Up     Normal  503.36 GB
>    8.33%   14178431955039102644307275309657008810
>    - <node3>      us-east     1e          Up     Normal  492.08 GB
>    8.33%   28356863910078205288614550619314017619
>    - <node4>      us-east     1e          Up     Normal  499.54 GB
>    8.33%   42535295865117307932921825928971026430
>    - <node5>      us-east     1e          Up     Normal  523.76 GB
>    8.33%   56713727820156407428984779325531226109
>    - <node6>      us-east     1e          Up     Normal  515.36 GB
>    8.33%   70892159775195513221536376548285044050
>    - <node7>      us-east     1e          Up     Normal  588.93 GB
>    8.33%   85070591730234615865843651857942052860
>    - <node8>      us-east     1e          Up     Normal  498.51 GB
>    8.33%   99249023685273718510150927167599061670
>    - <node9>      us-east     1e          Up     Normal  531.81 GB
>    8.33%   113427455640312814857969558651062452221
>    - <node10>     us-east     1e          Up     Normal  501.85 GB
>    8.33%   127605887595351923798765477786913079290
>    - <node11>     us-east     1e          Up     Normal  501.13 GB
>    8.33%   141784319550391026443072753096570088100
>    - <node12>     us-east     1e          Up     Normal  508.45 GB
>    8.33%   155962751505430129087380028406227096910
>
>    so that one node is node5. At this instance ring output, yea, it is
>    second highest in the ring but unlikely this is the cause.
>
>
> Jason
>
> On Sat, Mar 7, 2015 at 3:35 PM, Jan <cn...@yahoo.com> wrote:
>
>> HI Jason;
>>
>> The single node showing the anomaly is a hint that the problem is
>> probably local to a node (as you suspected).
>>
>>    - How many nodes do you have on the ring ?
>>    - What is the activity when this occurs  - reads / writes/
>>    compactions  ?
>>    - Is there anything that is unique about this node that makes it
>>    different from the other nodes ?
>>    - Is this a periodic occurance OR a single occurence -   I am trying
>>    to determine a pattern about when this shows up.
>>    - What is the load distribution the ring (ie: is this node carrying
>>    more load than the others).
>>
>>
>> The system.log should have  more info.,    about it.
>>
>> hope this helps
>> Jan/
>>
>>
>>
>>
>>
>>   On Friday, March 6, 2015 4:50 AM, Jason Wee <pe...@gmail.com> wrote:
>>
>>
>> well, StatusLogger.java started shown in cassandra
>> system.log, MessagingService.java also shown some stage (e.g. read,
>> mutation) dropped.
>>
>> It's strange it only happen in this node but this type of message does
>> not shown in other node log file at the same time...
>>
>> Jason
>>
>> On Thu, Mar 5, 2015 at 4:26 AM, Jan <cn...@yahoo.com> wrote:
>>
>> HI Jason;
>>
>> Whats in the log files at the moment jstat shows 100%.
>> What is the activity on the cluster & the node at the specific point in
>> time (reads/ writes/ joins etc)
>>
>> Jan/
>>
>>
>>   On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com>
>> wrote:
>>
>>
>> Hi, our cassandra node using java 7 update 72 and we ran jstat on one of
>> the node, and notice some strange behaviour as indicated by output below.
>> any idea why when eden space stay the same for few seconds like 100% and
>> 18.02% for few seconds? we suspect such "stalling" cause timeout to our
>> cluster.
>>
>> any idea what happened, what went wrong and what could cause this?
>>
>>
>> $ jstat -gcutil 32276 1s
>>
>>   0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>>   0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>>   0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>>   0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639
>>   0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679
>>   0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679
>>  14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705
>>  14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705
>>   0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>>
>>
>> thanks.
>>
>> jason
>>
>>
>>
>>
>>
>>
>>
>

Re: cassandra node jvm stall intermittently

Posted by Jason Wee <pe...@gmail.com>.
Hi Jan, thanks for your time to prepare the question and answer below,


   - How many nodes do you have on the ring ?
   12

   - What is the activity when this occurs  - reads / writes/ compactions
    ?
   This cluster has a lot of writes and read. off peak period, ops center
   shown cluster write is about 5k/sec, read about 1k/sec and during peak
   period, write could be 22k/sec and read about 10k/sec. So this particular
   one node hang like every moment irrespect if it is peak or non peak, or
   compaction.

   - Is there anything that is unique about this node that makes it
   different from the other nodes ?
   Our nodes are same in term of operating system (centos 6) and cassandra
   configuration settings. Other than that, there are no other resources
   intensive application running in cassandra nodes.


   - Is this a periodic occurance OR a single occurence -   I am trying to
   determine a pattern about when this shows up.
   it *always* happened and in fact, it is happening now.

   - What is the load distribution the ring (ie: is this node carrying more
   load than the others).
   As of this moment,

   - Address         DC          Rack        Status State   Load
    Owns    Token
   -
            155962751505430129087380028406227096910
   - <node1>      us-east     1e          Up     Normal  498.66 GB
   8.33%   0
   - <node2>      us-east     1e          Up     Normal  503.36 GB
   8.33%   14178431955039102644307275309657008810
   - <node3>      us-east     1e          Up     Normal  492.08 GB
   8.33%   28356863910078205288614550619314017619
   - <node4>      us-east     1e          Up     Normal  499.54 GB
   8.33%   42535295865117307932921825928971026430
   - <node5>      us-east     1e          Up     Normal  523.76 GB
   8.33%   56713727820156407428984779325531226109
   - <node6>      us-east     1e          Up     Normal  515.36 GB
   8.33%   70892159775195513221536376548285044050
   - <node7>      us-east     1e          Up     Normal  588.93 GB
   8.33%   85070591730234615865843651857942052860
   - <node8>      us-east     1e          Up     Normal  498.51 GB
   8.33%   99249023685273718510150927167599061670
   - <node9>      us-east     1e          Up     Normal  531.81 GB
   8.33%   113427455640312814857969558651062452221
   - <node10>     us-east     1e          Up     Normal  501.85 GB
   8.33%   127605887595351923798765477786913079290
   - <node11>     us-east     1e          Up     Normal  501.13 GB
   8.33%   141784319550391026443072753096570088100
   - <node12>     us-east     1e          Up     Normal  508.45 GB
   8.33%   155962751505430129087380028406227096910

   so that one node is node5. At this instance ring output, yea, it is
   second highest in the ring but unlikely this is the cause.


Jason

On Sat, Mar 7, 2015 at 3:35 PM, Jan <cn...@yahoo.com> wrote:

> HI Jason;
>
> The single node showing the anomaly is a hint that the problem is probably
> local to a node (as you suspected).
>
>    - How many nodes do you have on the ring ?
>    - What is the activity when this occurs  - reads / writes/ compactions
>     ?
>    - Is there anything that is unique about this node that makes it
>    different from the other nodes ?
>    - Is this a periodic occurance OR a single occurence -   I am trying
>    to determine a pattern about when this shows up.
>    - What is the load distribution the ring (ie: is this node carrying
>    more load than the others).
>
>
> The system.log should have  more info.,    about it.
>
> hope this helps
> Jan/
>
>
>
>
>
>   On Friday, March 6, 2015 4:50 AM, Jason Wee <pe...@gmail.com> wrote:
>
>
> well, StatusLogger.java started shown in cassandra
> system.log, MessagingService.java also shown some stage (e.g. read,
> mutation) dropped.
>
> It's strange it only happen in this node but this type of message does not
> shown in other node log file at the same time...
>
> Jason
>
> On Thu, Mar 5, 2015 at 4:26 AM, Jan <cn...@yahoo.com> wrote:
>
> HI Jason;
>
> Whats in the log files at the moment jstat shows 100%.
> What is the activity on the cluster & the node at the specific point in
> time (reads/ writes/ joins etc)
>
> Jan/
>
>
>   On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com>
> wrote:
>
>
> Hi, our cassandra node using java 7 update 72 and we ran jstat on one of
> the node, and notice some strange behaviour as indicated by output below.
> any idea why when eden space stay the same for few seconds like 100% and
> 18.02% for few seconds? we suspect such "stalling" cause timeout to our
> cluster.
>
> any idea what happened, what went wrong and what could cause this?
>
>
> $ jstat -gcutil 32276 1s
>
>   0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639
>   0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679
>   0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679
>  14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705
>  14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705
>   0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>
>
> thanks.
>
> jason
>
>
>
>
>
>
>

Re: cassandra node jvm stall intermittently

Posted by Jan <cn...@yahoo.com>.
HI Jason; 
The single node showing the anomaly is a hint that the problem is probably local to a node (as you suspected).    
   - How many nodes do you have on the ring ?    

   - What is the activity when this occurs  - reads / writes/ compactions  ?      

   - Is there anything that is unique about this node that makes it different from the other nodes ?    

   - Is this a periodic occurance OR a single occurence -   I am trying to determine a pattern about when this shows up.    

   - What is the load distribution the ring (ie: is this node carrying more load than the others).   


The system.log should have  more info.,    about it.       
hope this helpsJan/


 

     On Friday, March 6, 2015 4:50 AM, Jason Wee <pe...@gmail.com> wrote:
   

 well, StatusLogger.java started shown in cassandra system.log, MessagingService.java also shown some stage (e.g. read, mutation) dropped. 
It's strange it only happen in this node but this type of message does not shown in other node log file at the same time... 
Jason
On Thu, Mar 5, 2015 at 4:26 AM, Jan <cn...@yahoo.com> wrote:

HI Jason; 
Whats in the log files at the moment jstat shows 100%. What is the activity on the cluster & the node at the specific point in time (reads/ writes/ joins etc)
Jan/ 

     On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com> wrote:
   

 Hi, our cassandra node using java 7 update 72 and we ran jstat on one of the node, and notice some strange behaviour as indicated by output below. any idea why when eden space stay the same for few seconds like 100% and 18.02% for few seconds? we suspect such "stalling" cause timeout to our cluster.
any idea what happened, what went wrong and what could cause this?

$ jstat -gcutil 32276 1s
  0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639  0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679  0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679 14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705 14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705  0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731

thanks.
jason


    



   

Re: cassandra node jvm stall intermittently

Posted by Jason Wee <pe...@gmail.com>.
well, StatusLogger.java started shown in cassandra
system.log, MessagingService.java also shown some stage (e.g. read,
mutation) dropped.

It's strange it only happen in this node but this type of message does not
shown in other node log file at the same time...

Jason

On Thu, Mar 5, 2015 at 4:26 AM, Jan <cn...@yahoo.com> wrote:

> HI Jason;
>
> Whats in the log files at the moment jstat shows 100%.
> What is the activity on the cluster & the node at the specific point in
> time (reads/ writes/ joins etc)
>
> Jan/
>
>
>   On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com>
> wrote:
>
>
> Hi, our cassandra node using java 7 update 72 and we ran jstat on one of
> the node, and notice some strange behaviour as indicated by output below.
> any idea why when eden space stay the same for few seconds like 100% and
> 18.02% for few seconds? we suspect such "stalling" cause timeout to our
> cluster.
>
> any idea what happened, what went wrong and what could cause this?
>
>
> $ jstat -gcutil 32276 1s
>
>   0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493
>   0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544
>   0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590
>   0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639
>   0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679
>   0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679
>  14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705
>  14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705
>   0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>   0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731
>
>
> thanks.
>
> jason
>
>
>
>

Re: cassandra node jvm stall intermittently

Posted by Jan <cn...@yahoo.com>.
HI Jason; 
Whats in the log files at the moment jstat shows 100%. What is the activity on the cluster & the node at the specific point in time (reads/ writes/ joins etc)
Jan/ 

     On Wednesday, March 4, 2015 5:59 AM, Jason Wee <pe...@gmail.com> wrote:
   

 Hi, our cassandra node using java 7 update 72 and we ran jstat on one of the node, and notice some strange behaviour as indicated by output below. any idea why when eden space stay the same for few seconds like 100% and 18.02% for few seconds? we suspect such "stalling" cause timeout to our cluster.
any idea what happened, what went wrong and what could cause this?

$ jstat -gcutil 32276 1s
  0.00   5.78  91.21  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   5.78 100.00  70.94  60.07   2657   73.437     4    0.056   73.493  0.00   4.65  29.66  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  70.88  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  71.58  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.15  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.33  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  72.73  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.20  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.71  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.84  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  73.91  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.18  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   4.65  74.29  71.00  60.07   2659   73.488     4    0.056   73.544  0.00   5.43  12.64  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  18.02  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  69.24  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  78.05  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  78.97  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  79.07  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  79.18  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.09  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.36  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.51  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  80.70  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  81.31  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  81.63  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   5.43  82.94  71.09  60.07   2661   73.534     4    0.056   73.590  0.00   9.37  65.64  71.21  60.07   2663   73.583     4    0.056   73.639  0.00   3.49  11.89  71.25  60.10   2665   73.623     4    0.056   73.679  0.00   3.49  66.11  71.25  60.10   2665   73.623     4    0.056   73.679 14.26   0.00   9.91  71.25  60.10   2666   73.649     4    0.056   73.705 14.26   0.00  73.25  71.25  60.10   2666   73.649     4    0.056   73.705  0.00  10.49  14.43  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49  66.07  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731  0.00  10.49 100.00  71.29  60.10   2667   73.675     4    0.056   73.731

thanks.
jason