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From aaron morton <aa...@thelastpickle.com>
Subject Re: Cassandra OOM - 1.0.2
Date Tue, 07 Feb 2012 18:45:31 GMT
Just to ask the stupid question, have you tried setting it really high ? Like 500000 ? 

Cheers
 
-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 7/02/2012, at 10:27 AM, Ajeet Grewal wrote:

> Here are the last few lines of strace (of one of the threads). There
> are a bunch of mmap system calls. Notice the last mmap call a couple
> of lines before the trace ends. Could the last mmap call fail?
> 
> == BEGIN STRACE ==
> mmap(NULL, 2147487599, PROT_READ, MAP_SHARED, 37, 0xbffffb000) = 0x7709b54000
> fstat(37, {st_mode=S_IFREG|0644, st_size=59568105422, ...}) = 0
> mmap(NULL, 2147455553, PROT_READ, MAP_SHARED, 37, 0xc7fffb000) = 0x7789b55000
> fstat(37, {st_mode=S_IFREG|0644, st_size=59568105422, ...}) = 0
> mmap(NULL, 2147483522, PROT_READ, MAP_SHARED, 37, 0xcffff4000) = 0x7809b4f000
> fstat(37, {st_mode=S_IFREG|0644, st_size=59568105422, ...}) = 0
> mmap(NULL, 1586100174, PROT_READ, MAP_SHARED, 37, 0xd7fff3000) = 0x7889b4f000
> dup2(40, 37)                            = 37
> close(37)                               = 0
> open("/home/y/var/fresh_cassandra/data/fresh/counter_object-h-4240-Filter.db",
> O_RDONLY) = 37
> .
> .
> .
> .
> close(37)                               = 0
> futex(0x2ab5a39754, FUTEX_WAKE, 1)      = 1
> futex(0x2ab5a39750, FUTEX_WAKE, 1)      = 1
> futex(0x40116940, FUTEX_WAKE, 1)        = 1
> mmap(0x41a17000, 12288, PROT_NONE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x41a17000
> rt_sigprocmask(SIG_SETMASK, [QUIT], NULL, 8) = 0
> _exit(0)                                = ?
> == END STRACE ==
> 
> -- 
> Regards,
> Ajeet


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