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From Nikolay KŠ¾vshov <nkovs...@yandex.ru>
Subject Re: Cassandra 1.0 hangs during GC
Date Tue, 24 Jul 2012 08:17:54 GMT

I ran sar only recently after your advice and did not meet any huge GC-s on that server

At 08:14 there was a GC lasting 4.5 seconds, that's not five minutes of course, but also quite
an unpleasant value;

Still I'm waiting for big GC values and will provide according sar logs.

07:25:01 PM  pgpgin/s pgpgout/s   fault/s  majflt/s  pgfree/s pgscank/s pgscand/s pgsteal/s
   %vmeff
07:35:01 PM      0.00      4.34      9.02      0.00     13.61      0.00      0.00      0.00
     0.00
07:45:01 PM      0.00      5.17     20.47      0.00     25.77      0.00      0.00      0.00
     0.00
07:55:01 PM      0.00      4.66      8.63      0.00     18.69      0.00      0.00      0.00
     0.00
08:05:01 PM      0.00      8.11      8.84      0.00     14.37      0.00      0.00      0.00
     0.00
08:15:01 PM      0.00      5.19     21.65      0.00     25.94      0.00      0.00      0.00
     0.00


24.07.2012, 10:22, "Wojciech Meler" <wojciech.meler@gmail.com>:
> Can you provide output from sar command for the time period when long
> GC occurred ?
>
> Regards,
> Wojciech Meler

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