similar to: cyrus spool on btrfs?

Mark Haney wrote: > On 09/07/2017 01:57 PM, hw wrote: >> >> Hi, >> >> is there anything that speaks against putting a cyrus mail spool onto a >> btrfs subvolume? >> > I might be the lone voice on this, but I refuse to use btrfs for anything, much less a mail spool. I used it in production on DB and Web servers and fought corruption issues and scrubs

I hate top posting, but since you've got two items I want to comment on, I'll suck it up for now. Having SSDs alone will give you great performance regardless of filesystem.? BTRFS isn't going to impact I/O any more significantly than, say, XFS.? It does have serious stability/data integrity issues that XFS doesn't have.? There's no reason not to use SSDs for storage of

I think it depends on who you ask. Facebook and Netflix are using it extensively in production: https://www.linux.com/news/learn/intro-to-linux/how-facebook-uses-linux-and-btrfs-interview-chris-mason Though they have the in-house kernel engineering resources to troubleshoot problems. When I see quotes like this [1] on the product's WIKI: "The parity RAID code has multiple serious

On 09/08/2017 09:49 AM, hw wrote: > Mark Haney wrote: >> I hate top posting, but since you've got two items I want to comment >> on, I'll suck it up for now. > > I do, too, yet sometimes it?s reasonable.? I also hate it when the lines > are too long :) > I'm afraid you'll have to live with it a bit longer.? Sorry. >> Having SSDs alone will give you

On 09/07/2017 01:57 PM, hw wrote: > > Hi, > > is there anything that speaks against putting a cyrus mail spool onto a > btrfs subvolume? > I might be the lone voice on this, but I refuse to use btrfs for anything, much less a mail spool. I used it in production on DB and Web servers and fought corruption issues and scrubs hanging the system more times than I can count.? (This

PS: What kind of storage solutions do people use for cyrus mail spools? Apparently you can not use remote storage, at least not NFS. That even makes it difficult to use a VM due to limitations of available disk space. I?m reluctant to use btrfs, but there doesn?t seem to be any reasonable alternative. hw wrote: > Mark Haney wrote: >> On 09/07/2017 01:57 PM, hw wrote: >>>

Mark Haney wrote: > I hate top posting, but since you've got two items I want to comment on, I'll suck it up for now. I do, too, yet sometimes it?s reasonable. I also hate it when the lines are too long :) > Having SSDs alone will give you great performance regardless of filesystem. It depends, i. e. I can?t tell how these SSDs would behave if large amounts of data would be

On 09/08/2017 01:31 PM, hw wrote: > Mark Haney wrote: > > I/O is not heavy in that sense, that?s why I said that?s not the > application. > There is I/O which, as tests have shown, benefits greatly from low > latency, which > is where the idea to use SSDs for the relevant data has arisen from.? > This I/O > only involves a small amount of data and is not sustained

To be honest, I'd not try a btrfs volume on a notebook SSD. I did that on a couple of systems and it corrupted pretty quickly. I'd stick with xfs/ext4 if you manage to get the drive working again. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com

hw wrote: > Mark Haney wrote: <snip> >> BTRFS isn't going to impact I/O any more significantly than, say, XFS. > > But mdadm does, the impact is severe. I know there are ppl saying > otherwise, but I?ve seen the impact myself, and I definitely don?t want > it on that particular server because it would likely interfere with > other services. <snip> I

This should be easy to answer (I hope).? We routinely kickstart boxes to use for managing our customers RADIUS/DHCP configurations (along with other things).? We've had a C7 kickstart in place since I built one in May and are finally starting to roll it out for new installations.? But, I'm curious as to what ksdevice= actually does. With the C6 we routinely used ksdevice=eth0 since we

I can't seem to find anything clear on this, but is the C7 version of BIND 9.9 built with Request Rate Limiting? -- Mark Haney Network Engineer at NeoNova 919-460-3330 option 1 mark.haney at neonova.net www.neonova.net

I know this is for CentOS stuff, but I'm at a loss on how to build a script that does what I need it to do.? It's probably really logically simple, I'm just not seeing it.? Hopefully someone will take pity on me and at least give me a big hint. I have a file with two columns 'email' and 'total' like this: me at example.com 20 me at example.com 40 you at domain.com

On 10/25/2017 12:33 PM, Robert Arkiletian wrote: > here is a python solution > #!/usr/bin/python > #python 2 (did not check if it works) > f=open('yourfilename') > D={} > for line in f: > email,num = line.split() > if email in D: > D[email] = D[email] + num > else: > D[email] = num > f.close() > for key in D: >

Hi all, I've got an issue with C6's dhcpd custom logging that I cannot figure out. Hopefully someone has an idea, or has seen a similar issue. We have dhcpd logging to /var/log/messages a custom header (DHCPUSER:) with MAC, IP and Circuit-ID. I'll not bore you with the guts, so here's the beginning of that line in dhcpd.conf: if exists agent.circuit-id { log (info,

On 11/01/2017 01:57 PM, Tristan Hoar wrote: > > Strictly speaking it is depricated > https://anaconda-installer.readthedocs.io/en/latest/boot-options.html#d > eprecated-options > > Regards, > > Tris > Okay, so it looks like I can simply change ksdevice=eth0? to bootdev=eth0, correct? -- Mark Haney Network Engineer at NeoNova 919-460-3330 option 1 mark.haney at

On 11/01/2017 03:25 PM, Chris Adams wrote: > Once upon a time, Mark Haney <mark.haney at neonova.net> said: >> Okay, so it looks like I can simply change ksdevice=eth0? to >> bootdev=eth0, correct? > I believe you can just leave both off (IIRC for CentOS 6 as well) if you > add "ipappend 2" to the pxelinux stanza. > I probably should have clarified that

I have a couple of in use C7 boxes that were built with ntsysv and chkconfig for some old packages that needed to start using init.d. (The person setting these up didn't know about systemd creating service files for older packages, so we're stuck with these as-is. Here's my problem: Error unpacking rpm package chkconfig-1.7.2-1.el7.x86_64 error: unpacking of archive failed on

This might be a bit OT, but I've never had to do this before and what I've googled doesn't seem to be working. I have an ansible playbook that I'm working on that I want to run as a cronjob.? One task I'm having trouble with is where I have a text file with lines like: rd.pl "blah blah" rd.pl "blah blah blah" This text file has to be 'executed'

Warren Young wrote: > On Oct 25, 2017, at 10:02 AM, Mark Haney <mark.haney at neonova.net> wrote: >> >> I have a file with two columns 'email' and 'total' like this: >> >> me at example.com 20 >> me at example.com 40 >> you at domain.com 100 >> you at domain.com 30 >> >> I need to get the total number of messages for