On Fri, May 03, 2013 at 07:11:26PM +0000, Pottinger, Hardy J. wrote: > Hi, in an effort to share as much information as we have, here's our > latest thinking on this. However, do note, I'm talking about an > esoteric/intermittent error that looks just like the much more > straightforward error that Peter mentions below. It is well worth your > time to troubleshoot as Peter suggests, because a simple permissions issue > is easily repaired. > > However, the error described by Amy [1] is another thing altogether. In > troubleshooting it earlier this year, I brought an article [2] to the > attention of Mark Wood in Indiana as well as a few sysadmins here. After > reading this article, I realized we actually have a bit of an "oddity" in > our server setup. The server that hosts our repository runs on RHEL5, > which is 32-bit, but it has a special PAE kernel, which means it's running > enough 64-bit Linux to address more RAM. Our sysadmin searched around and > discovered another article [3], which generically warns of Java issues on > a PAE kernel. So, our plan at this point is to try testing DSpace on a > 64-bit machine, using Java 7, and a specifically-tuned installation of > Tomcat, to make the best utilization of available memory. Last I heard, > Mark was also planning on migrating to 64-bit machine.
FWIW scholarworks.iupui.edu migrated a week and a half ago to an AMD Opteron 2356 (64-bit instruction set) on an x86_64 kernel with no complaints so far. savage ~ # uname -a Linux savage 3.7.10-gentoo #1 SMP Tue Mar 12 08:50:14 EDT 2013 x86_64 Quad-Core AMD Opteron(tm) Processor 2356 AuthenticAMD GNU/Linux savage linux # java -version java version "1.6.0_27" OpenJDK Runtime Environment (IcedTea6 1.12.4) (Gentoo build 1.6.0_27-b27) OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode) -- Mark H. Wood, Lead System Programmer mw...@iupui.edu Machines should not be friendly. Machines should be obedient.
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