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From 曹志富 <cao.zh...@gmail.com>
Subject Re: unusual GC log
Date Wed, 21 Oct 2015 01:18:02 GMT
C* version is 2.1.6.
CentOS release 6.5 (Final)
Sun JDK 1.7.0_71 64bit.

attach is my config setting.

Thank you very much!!!

--------------------------------------
Ranger Tsao

2015-10-20 15:43 GMT+08:00 Graham Sanderson <graham@vast.com>:

> What version of C* are you running? any special settings in
> cassandra.yaml; are you running with stock GC settings in cassandra-env.sh?
> what JDK/OS?
>
> On Oct 19, 2015, at 11:40 PM, 曹志富 <cao.zhifu@gmail.com> wrote:
>
> INFO  [Service Thread] 2015-10-20 10:42:47,854 GCInspector.java:252 -
> ParNew GC in 476ms.  CMS Old Gen: 4288526240 -> 4725514832; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:42:50,870 GCInspector.java:252 -
> ParNew GC in 423ms.  CMS Old Gen: 4725514832 -> 5114687560; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:42:53,847 GCInspector.java:252 -
> ParNew GC in 406ms.  CMS Old Gen: 5114688368 -> 5513119264; Par Eden
> Space: 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:42:57,118 GCInspector.java:252 -
> ParNew GC in 421ms.  CMS Old Gen: 5513119264 -> 5926324736; Par Eden
> Space: 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:00,041 GCInspector.java:252 -
> ParNew GC in 437ms.  CMS Old Gen: 5926324736 -> 6324793584; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:03,029 GCInspector.java:252 -
> ParNew GC in 429ms.  CMS Old Gen: 6324793584 -> 6693672608; Par Eden
> Space: 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:05,566 GCInspector.java:252 -
> ParNew GC in 339ms.  CMS Old Gen: 6693672608 -> 6989128592; Par Eden
> Space: 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:08,431 GCInspector.java:252 -
> ParNew GC in 421ms.  CMS Old Gen: 6266493464 -> 6662041272; Par Eden
> Space: 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:11,131 GCInspector.java:252 -
> ConcurrentMarkSweep GC in 215ms.  CMS Old Gen: 5926324736 -> 4574418480;
> CMS Perm Gen: 33751256 -> 33751192
> ; Par Eden Space: 7192 -> 611360336;
> INFO  [Service Thread] 2015-10-20 10:43:11,848 GCInspector.java:252 -
> ParNew GC in 511ms.  CMS Old Gen: 4574418480 -> 4996166672; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:14,915 GCInspector.java:252 -
> ParNew GC in 395ms.  CMS Old Gen: 4996167912 -> 5380926744; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:18,335 GCInspector.java:252 -
> ParNew GC in 432ms.  CMS Old Gen: 5380926744 -> 5811659120; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:21,492 GCInspector.java:252 -
> ParNew GC in 439ms.  CMS Old Gen: 5811659120 -> 6270861936; Par Eden Space:
> 671088640 -> 0;
> INFO  [Service Thread] 2015-10-20 10:43:24,698 GCInspector.java:252 -
> ParNew GC in 490ms.  CMS Old Gen: 6270861936 -> 6668734208; Par Eden Space:
> 671088640 -> 0; Par Survivor Sp
> ace: 83886080 -> 83886072
> INFO  [Service Thread] 2015-10-20 10:43:27,963 GCInspector.java:252 -
> ParNew GC in 457ms.  CMS Old Gen: 6668734208 -> 7072885208; Par Eden
> Space: 671088640 -> 0; Par Survivor Sp
> ace: 83886072 -> 83886080
>
> after seconds node mark down.
>
> My node config is : 8GB heap NEW_HEAP size is 800MB
>
> NODE hardware is :4CORE 32GBRAM
>
> --------------------------------------
> Ranger Tsao
>
>
>

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