[svlug] Problem in SSH !

[Anagha Tongaonkar]

Hello Jeff,

I executed the Compress command using "strace -f" and it
generates the trace file. Now still the Compress program
does not exit; it goes into loop. If I do a CTRL+C then I
see the program has actually done the compress job and
created the required output. However, the program simply
doesn't exit.

If I run the same program/executable on the command line,
it runs fine. I am wondering if exiting of the Compress
command has anything to do with the SSH.

Here is the tail end of the compress.trace for your
perusal:
***********************************
munmap(0xb75cb000, 4096)                = 0
write(4, "\n\n\n\n\nPSDM_parameter_file=psdm.0."..., 2415)
= 2415
close(4)                                = 0
munmap(0xb75ca000, 4096)                = 0
getrusage(RUSAGE_SELF, {ru_utime={2, 360000}, ru_stime={0,
270000}, ...}) = 0
gettimeofday({1123194497, 929125}, NULL) = 0
munmap(0xb75cc000, 163840)              = 0
write(2, "  INFO:", 7  INFO:)                  = 7
write(2, "Time statistics    absolute prct"..., 88Time
statistics    absolute prct[%]       user     system   
elapsed     count   ms/call) = 88
write(2, "\n", 1
)                       = 1
write(2, "  INFO:", 7  INFO:)                  = 7
write(2, "     Processing:       2.85  100"..., 88    
Processing:       2.85  100.00       2.35       0.27      
2.62         1   2845.18) = 88
write(2, "\n", 1
)                       = 1
write(2, " TRACE:", 7 TRACE:)                  = 7
write(2, "Before destroy parameters", 25Before destroy
parameters) = 25
write(2, "\n", 1
)                       = 1
write(2, " TRACE:", 7 TRACE:)                  = 7
write(2, "Finishing", 9Finishing)                = 9
write(2, "\n", 1
)                       = 1
write(2, "  INFO:", 7  INFO:)                  = 7
write(2, "BEGIN memory allocation status r"..., 37BEGIN
memory allocation status report) = 37
write(2, "\n", 1
)                       = 1
write(2, "  INFO:", 7  INFO:)                  = 7
write(2, "END memory allocation status rep"..., 35END
memory allocation status report) = 35
write(2, "\n", 1
)                       = 1
write(1, "Just before Parse \nJust After Pa"..., 37Just
before Parse 
Just After Parse 
) = 37
munmap(0xb75f7000, 4096)                = 0
exit_group(0)                           = ?

***********************************

Thank you,
Anagha


--- Jeff Frost <jeff at frostconsultingllc.com> wrote:

> Anagha,
> 
> Can you give us the output from running your scripts? 
> Also, does the Compress 
> command exit with an error or it just seems to run in an
> endless loop?  Have 
> you checked that the user you are ssh'ing as to run the
> command has execute 
> permissions on the Compress command and also read perms
> on the file to be 
> compressed and write perms in the diretory the output
> file will be placed?
> 
> If all that is good, you may want to strace the compress
> command to see what's 
> really going on..you could just add it to your script
> like so:
> 
> strace -f Compress file="myData.csv" op="compress" >
> /tmp/compress.trace 2>&1
> 
> 
> -- 
> Jeff Frost, Owner 	<jeff at frostconsultingllc.com>
> Frost Consulting, LLC 	http://www.frostconsultingllc.com/
> Phone: 650-780-7908	FAX: 650-649-1954
> 


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