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Hi all,

To further back this up, since upgrading one of our doors to jdk1.5.0_10 
at the end of February I have seen improved memory usage. Previously the 
node would start swapping out after only a few days of consistent use. 
This no longer appears to be the case.

Cheers,
Greig

Derek Ross wrote:
> After an enjoyable and productive afternoon playing gridftp door restart 
> Whac-a-mole, I upgraded one of our gridftp doors to use jdk1.5.0_11 
> rather than j2sdk1.4.2_12, and restarted it and another that had failed 
> at the same time. 3 hours later the control had fallen over; the 
> upgraded door is now at 7 hours uptime. It also appeared to be using 
> markedly less threads.
> 
> GFTP-gftp0444     gridftp-gftp0444Domain     0     29     88 msec     
> 03/14 19:44:42 production-1-7-0(1.16)
> GFTP-gftp0445     gridftp-gftp0445Domain     0     613     139 msec     
> 03/14 19:45:09     production-1-7-0(1.16)
> GFTP-gftp0446     gridftp-gftp0446Domain     0     600     136 msec     
> 03/14 19:46:08     production-1-7-0(1.16)
> 
> Above is after the next batch of restarts, copied from the dCache 
> cellInfo page, gftp0444 is now using java 1.5, 445 and 446 aren't, the 
> fourth column is claimed to be the number of threads in use.
> 
> So if other sites are seeing problems with gridftp doors running out of 
> memory they may want to think about upgrading the java version.
> 
> Derek