[Orca-users] Out of memory during request for 1016 bytes error

[Michael O'Dea]

I bumped the limits down:


bash-2.05$ ulimit -a
core file size (blocks)     0
data seg size (kbytes)      unlimited
file size (blocks)          unlimited
open files                  512
pipe size (512 bytes)       10
stack size (kbytes)         8192
cpu time (seconds)          unlimited
max user processes          29995
virtual memory (kbytes)     51200

512 open files -- it was 4096 before. I am still getting the errors 


/opt/orca-0.27b2/bin/orca: warning: cannot open state file `/opt/orca-0.27b2/rrd/orcallator/orca.state.tmp' for writing: Too many open files

and now it doesnt seem to be writing anything useful. When the was the default of 4096 file descriptors the machine crawled to a halt and used 100% swap & othber processes started crapping out. 

Also, the system shows about 75 bzip processes and 430 defunct processes under orca! 

-----Original Message-----
From: Steve Waltner [mailto:swaltner at lsil.com]
Sent: Thursday, December 19, 2002 10:25 AM
To: orca-users at orcaware.com
Subject: Re: [Orca-users] Out of memory during request for 1016 bytes
error


On Wednesday, December 18, 2002, at 05:24 PM, Michael O'Dea wrote:
> Hello all
>
> While orca is firing up and starting to read files I get this error:
>
> Out of memory during request for 1016 bytes, total sbrk() is 27999536 
> bytes!
>
> after about 150 lines of
>
> /opt/orca-0.27b2/bin/orca: warning: cannot open 
> `/opt/orca-0.27b2/orcallator/st-ivr/percol-2002-12-15' for reading: 
> Too many open files
> /opt/orca-0.27b2/bin/orca: warning: cannot open 
> `/opt/orca-0.27b2/orcallator/st-ivr/percol-2002-12-16' for reading: 
> Too many open files
> /opt/orca-0.27b2/bin/orca: warning: cannot open 
> `/opt/orca-0.27b2/orcallator/st-ivr/percol-2002-12-16' for reading: 
> Too many open files
> /opt/orca-0.27b2/bin/orca: warning: cannot open 
> `/opt/orca-0.27b2/orcallator/st-ivr/percol-2002-12-17' for reading: 
> Too many open files
>
> Now the "too many open files" error I have always gotten - but this 
> "Out of memory" error is new.
>
> Did I maybe reach some limit of rrd files that Orca can process?
>
> -m

Have you looked at the output of limit/ulimit? In addition to the file 
descriptors limit that is mentioned in the FAQ 
http://svn.orcaware.com:8000/repos/trunk/orca/FAQ at item 2.3, you can 
also adjust the datasize or the max amount of RAM the process can 
malloc(). You should used "ulimit -d" for sh variants and "limit 
datasize" for csh variants of user shells. On my system, limit reports 
the following, allowing me to allocate memory until swap space is 
exhausted.

ra:~> limit
cputime         unlimited
filesize        unlimited
datasize        unlimited
stacksize       8192 kbytes
coredumpsize    4096 kbytes
vmemoryuse      unlimited
descriptors     256
ra:~> limit -h
cputime         unlimited
filesize        unlimited
datasize        unlimited
stacksize       unlimited
coredumpsize    unlimited
vmemoryuse      unlimited
descriptors     1024
ra:~>

Steve

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