Reputation
24,349
Top tag
Next privilege 25,000 Rep.
Access to site analytics
Badges
1 30 58
Newest
 Necromancer
Impact
~1.2m people reached

Feb
6
comment Centos 6 soft openfiles 1024?
There is no "system based max open files", as far as I know. Again, it depends what it is you're trying to do, which you still haven't told us. Whatever launches these scripts either understands limits or doesn't. If it does, tell it to set the limits how you want. If it doesn't, then set the limits before launching the thing that launches these scripts. For example, systemd supports LimitNOFILE.
Feb
6
revised Centos 6 soft openfiles 1024?
added 157 characters in body
Feb
6
comment Centos 6 soft openfiles 1024?
He's already got that part covered. Notice the output of ulimit -n in his question? His issue seems to be with processes that weren't created by a user logging in.
Feb
6
comment Centos 6 soft openfiles 1024?
Can you explain what your outer problem is rather than telling us how you've attempted to solve it? Is there some specific process that needs a higher limit? If so, which process and how is that process being started?
Feb
6
answered Centos 6 soft openfiles 1024?
Feb
4
awarded  Enlightened
Feb
4
awarded  Nice Answer
Feb
2
comment Why does a URE cause loss of array during RAID 5 rebuild?
@StrongBad If there's a URE, the rebuild fails. I think you're still missing the entire point of RAID, which is to permit you to continue to operate reliably even if a disk fails, that is, to minimize downtime. As soon as you can't operate reliably, that's it, the RAID has failed. You will always have downtime to get back to reliable operation.
Feb
2
comment Why does a URE cause loss of array during RAID 5 rebuild?
@StrongBad It doesn't make things worse. You're describing a process that requires figuring out which files are affected, restoring those specifically, determining whether the medium is still reliable, and so on -- all before you can resume operation. The whole point of RAID is to minimize this time and risk. Doing a full restore/rebuild is almost always faster and safer.
Feb
2
answered Why does a URE cause loss of array during RAID 5 rebuild?
Feb
1
answered port listening in netstat can't telnet
Feb
1
comment SSL encryption with CNAME redirect
What do you mean by "which server"? There's only one server in your architecture.
Feb
1
comment port listening in netstat can't telnet
Show us the hadoop config the causes the port to be listened on.
Feb
1
comment port listening in netstat can't telnet
What is listening on port 8020?
Jan
27
comment Top - what does Virtual memory size mean? …linux/ubuntu
This answer spreads the misconception that virtual memory is the same as swapping or paging. Using disk as an extension of RAM predates virtual memory. And there are lots of systems (such as most SoHo routers) that have virtual memory but do not use disk as an extension of RAM. (And this is not the answer to the OP's question either, since he's not using any swap.)
Jan
25
comment UDP destination address during port forwarding?
It's very unlikely that you're going to get this to work the way you want.
Jan
25
comment IP Conflicts from mikrotik router for multiple ip addresses (that it isnt assigned)
Is the point-to-point wireless connection acting as a bridge? Or what?
Jan
11
comment Packets in bridge get up to the user space without being redirected there
What do you mean by "an application with a TCP listener on port 80"? Do you just mean that a regular TCP socket bound to port 80 on which you called listen? Or something else?
Jan
8
comment Are HDD <-> SSD transfer speeds completely bottlenecked by HDD speed?
@penu It makes a huge difference. With lots of small files, HDD performance is dominated by seek time. With large files, HDD performance is dominated by transfer time. Whether OS or filesystem matters depends a lot on the specifics of the setup and at least knowing the OS, we'd know which questions to ask.
Jan
8
comment Are HDD <-> SSD transfer speeds completely bottlenecked by HDD speed?
@penu You could start by specifying the type of transfer. Are we copying lots of small files? Are we copying one large file? You could specify filesystem or OS. You could specify specific SSDs or HDDs.