267 reputation
211
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age 49
visits member for 4 years, 9 months
seen Oct 9 at 21:12
I love programming and have been doing it since 1972.

Oct
2
comment How do we configure Lustre to block client requests when under load, rather than failing?
Is that the user-specified I/O size or the system I/O size?
Sep
25
comment How do we configure Lustre to block client requests when under load, rather than failing?
I don't have the ability to add more OSSs, unfortunately. The I/O is that we have objects in the 20G to 100G range and each process reads the object from beginning to end. I don't think that striping would help. We really just need to make it block.
Jul
17
comment Trouble compiling modern GCC with antique glibc
Thanks. I believe this will work. However, I found another solution, and that is to do the compiles on another system and distribute the binaries and shared libraries to this system. That's also ugly, but I think that it works too.
Jul
17
comment Trouble compiling modern GCC with antique glibc
Because it's a shared resource among hundreds of users and I'm not the administrator.
Jul
17
comment Trouble compiling modern GCC with antique glibc
We are not able to upgrade the system.
Jul
17
comment Trouble compiling modern GCC with antique glibc
Actually, I tried this and it didn't work. As soon as the shared libraries were installed in the directory, all existing binaries stopped working. Many of the tools require the new libraries to build.
Jul
16
comment Trouble compiling modern GCC with antique glibc
My code runs in 1/2 the time with the better compiler. The code is running on a supercomputer and takes 3-7 days to run. Without the better compiler, it takes 6-14 days to run.
Apr
3
comment Can I configure mailman so that it won't break S/MIME digital signatures?
So it sounds like the answer is "no, not if you are adding a footer or header, because today's mail clients aren't smart enough to validate just the inside of a S/MIME message." Perhaps I should simply have mailman strip the signature?
Jan
3
comment How to reduce the memory usage of mediawiki?
Thanks for the suggestion.
Dec
24
comment How do I install libpcap-devel on SUSE Enterprise?
We ended up giving up one SuSE Linux Enterprise. It wasn't worth the effort.
Nov
30
comment Linux mdadm software RAID 6 - does it support bit corruption recovery?
You are correct. I edited the answer to add nuance.
Nov
15
comment A user that can read any Linux file?
Nice approach. Thanks.
Nov
2
comment Can I create my own S/MIME certificate for email encryption?
I changed -CAKey to -CAkey. This is a really excellent answer, but the side-comment about GPG is unwarrented. S/MIME has many advantages over GPG. Besides wider support, it includes the certificate with each signed message, providing a built-in certificate distribution mechanism.
Oct
20
comment How to block Googlebot quickly?
This rewrite just tells the agent to go annoy google.com. It blocks as a side-effect, but it's not the correct response code.
Mar
14
comment How do I install libpcap-devel on SUSE Enterprise?
Thanks. We are current on support; we'll look into it.
Mar
13
comment How do I install libpcap-devel on SUSE Enterprise?
Thanks. We will review SLE11 SDK. We haven't been able to find it online, though, so we're having to mount it from the DVDs. In the meantime, I was able to install from sources at tcpdump.org. I'm not sure why that didn't show up the first time I did my search.
Mar
13
comment How do I install libpcap-devel on SUSE Enterprise?
Actually, we're using SuSE Linux Enterprise, not OpenSUSE. I've retagged the question.
Mar
4
comment Wanted: Unix zip command-line program with zip64 support
Yes there are LZMA bindings for Python, but that doesn't mean that you can read 7zip files. It just means you can compress and decompress LZMA streams. Have you explicitly verified that 7ZIP files can be opened natively from Python?
Mar
4
comment Wanted: Unix zip command-line program with zip64 support
Wow. Turns out that the version of info-zip shipping with MacOS is from 2005! That's why it doesn't have 64-bit support.
Feb
16
comment What's the best file system for a 200TB Array on a MacOS 10.7?
Unsupported means that you can't complain to Apple that it doesn't work. We can't complain to Apple for the majority of the work that we do. ZFS has a user community and we have used it for years on other systems without data loss. But I do not know about the relative performance of ZFS vs. HFS+. I also do not know if there are other options on Mac hardware. Yes, we can run FreeBSD on the hardware, but I am not sure about fibre channel drives and 10Gig drivers for FreeBSD.