Re: [OpenAFS] compile fails kernel version 4.4.0-1-default

Can the OpenAFS folks work on kAFS? I was under the impression that they were "tainted" by having read the IBM-provided code. --- Jason Edgecombe | Linux Administrator UNC Charlotte | The William States Lee College of Engineer

[OpenAFS] Recommended procedure for rotating AFS service keys

Hi everyone, I need to rotate the password/keytab for our AFS service principal. We're using OpenAFS 1.6.15 with rxkad.keytab (no KeyFile) and MIT Kerberos on the KDC. I'm looking for some guidance on how to do that. It looks like the 'ktadd' command in kadmin doesn't allow you to keep old passwo

[OpenAFS] FUSE on Windows to satisfy Microsoft certification

Hi everyone, OpenAFS isn't the only open source file system that will be locked out of Windows by Microsoft's new certification requirements. Quite a few of these file systems rely on the FUSE interface. There seems to be a FUSE interface for windows. I don't know if Microsoft would certify the

RE: [OpenAFS] Re: OpenAFS client crashes on RHEL 5.10 and RHEL 6.5

Hi Everyone, RedHat has a patched kernel for testing the fix on RHEL6. This is purely for testing. I don't have any RHEL6 boxes lying around to test this, and I don't have the time to set one up. If you would like to test the packages on RHEL6, please contact me off-list, and I'll give you a do

RE: [OpenAFS] Re: OpenAFS client crashes on RHEL 5.10 and RHEL 6.5

>From the knowledgebase article >: "Red Hat currently intend to also supply a fix for this issue in RHEL 5." Support issue #01056785 was filed with RedHat support for The University of North Carolina at Charlotte. Sorry that I'm late to the party

[OpenAFS] anonymous AFS access from pre-1.6.5 clients after DES is disabled

Hi everyone, After all of the cell's AFS servers are upgraded to 1.6.5 and DES is disabled, will pre-1.6.5 clients still retain anonymous AFS access via system:anyuser access and IP ACLs? I understand that authenticated access will not be possible, but I want to clarify the anonymous access cas

[OpenAFS] Change the IP of a Cell server

Hi everyone, We have three AFS Cell servers, and we need to change the IP address for one of the cell servers and a few (one-third) of the file servers. This is caused by an upgrade and reconfiguration of our network. The machines will not physically move or lose power. We used static CellServ

[OpenAFS] Best practice for cleaning up PTS groups after users are deleted

Hi everyone, How do other sites deal with groups after users are deleted? How do you expire groups that own other groups? Are there pre-existing scripts for doing this? Thanks, Jason --- Jason Edgecombe | Linux and Solaris

[OpenAFS] vos backupsys no longer logs how many volumes were backed up

Hi everyone, We migrated from 1.4.X series to 1.4.x series on Linux servers. On the old systems, the "vos backupsys" command would like helpful messages like "backed up X volumes. 0 failed: in the log file. Not, it just says that had exit code 15. Things are still getting backed up. What can I

[OpenAFS] Running vos or pts against a specific cell server

Is there a way that I can run pts and vos commands against a specific cell server. I want to write some nagios checks to make sure that all cell servers are healthy. Thanks, Jason --- Jason Edgecombe | Linux and Solaris Adm

RE: [OpenAFS] improving cache partition performance

% fs getcacheparms AFS using 145647975 of the cache's available 212484585 1K byte blocks. I'm already using RAID 0, so I'm already striping. I'll have to do some benchmarking with ext2. Our web servers handle PHP web apps and large movie files. Jason ---

[OpenAFS] forcing and benchmarking the cache scan

Hi everyone, I had a server doing a cache scan for over an hour yesterday after upgrading the RAID (mpt2sas) driver on RHEL5.5 64bit. I thought the box hung, so I ran a hard reset and ended up rebuilding it. I'm trying to reproduce and measure the cache scan time with the two different versions

RE: [OpenAFS] Using a file lock to avoid race conditions?

...@openafs.org] On Behalf Of Jeffrey Altman Sent: Tuesday, March 15, 2011 12:46 PM To: openafs-info@openafs.org Subject: Re: [OpenAFS] Using a file lock to avoid race conditions? On 3/15/2011 12:14 PM, Edgecombe, Jason wrote: > I’m thinking of using a file lock (i.e. flock) in AFS to determine

[OpenAFS] Using a file lock to avoid race conditions?

Hi everyone, We're working on a script to fetch mail from an IMAP server and put it into a web-based ticketing system. The script should be run from one of our five Linux web servers in our fail-over pool. The script should still run even if one server is down. A late run of 2-3 times the frequ

RE: [OpenAFS] Re: Reducing cache scan time

esday, January 26, 2011 4:42 PM To: openafs-info@openafs.org Subject: [OpenAFS] Re: Reducing cache scan time On Wed, 26 Jan 2011 15:58:30 -0500 "Edgecombe, Jason" wrote: > My afsd options are "-fakestat -dynroot -chunksize 18 -stat 50 > -daemons 16 -volumes 2000 -block

[OpenAFS] Reducing cache scan time

Hi everyone, As disk sizes increase, we are increasing the size of our AFS disk caches. We have many that are 64GB or larger. Unfortunately, the cache scan is taking more than 5 minutes when booting or starting AFS. Is there some way to decrease this time it takes to scan the cache? Is the

RE: [OpenAFS] Re: Improving AFS performance for Joomla and other web sites

That's correct. RedHat Enterprise Linux 5.5. I was thinking of trying 1.5.x, but my brief first attempt at making an RPM failed. Jason --- Jason Edgecombe | Linux and Solaris Administrator UNC Charlotte | The Wil

RE: [OpenAFS] Improving AFS performance for Joomla and other web sites

6:53 PM To: Edgecombe, Jason Cc: openafs-info@openafs.org Subject: Re: [OpenAFS] Improving AFS performance for Joomla and other web sites On Wed, Sep 8, 2010 at 5:32 PM, Edgecombe, Jason wrote: > Hi everyone, > > > > We currently server our entire web tree out of AFS. This include

[OpenAFS] Improving AFS performance for Joomla and other web sites

Hi everyone, We currently server our entire web tree out of AFS. This includes Joomla and other PHP-based applications. While I was benchmarking our new server, I noticed that the following rough performance numbers: Static files served from AFS: ~200 requests per second Joomla home page s