Questions tagged [limits]
The limits tag has no usage guidance.
81
questions
186
votes
8
answers
284k
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39
votes
5
answers
70k
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Set max file limit on a running process
I have a long running process that is eventually going to hit the max open file limit. I know how to change that after it fails, but is there a way to change that for the running process, from the ...
- 491
19
votes
2
answers
76k
views
/etc/security/limits.conf soft nproc limit appears to be ignored
My MongoDB database was running into problems under load, with the following errors spamming the logs:
[initandlisten] pthread_create failed: errno:11 Resource temporarily unavailable
[initandlisten] ...
- 333
17
votes
3
answers
51k
views
Is there a hard limit to the number of files a directory can have? [duplicate]
Wondering if there is a limit to the number of files that can be stored inside a directory, in CentOS 6. There is one particular directory which could potentially have millions of subdirectories.
...
- 679
14
votes
5
answers
15k
views
systemd, per-user cpu and/or memory limits
There is similar question: Cgroups, limit memory per user, but the solution doesn't work in "modern" systems, where cgroups hierarchy is
managed by systemd.
Straightforward solution — templating ...
- 311
10
votes
2
answers
24k
views
Reload /etc/security/limits.conf
I would like to:
make a soft 64GB limit for resident memory (so inexperienced users will get their run-amok processes killed, but experienced users can raise the limit for memory hungry processes)
...
- 3,146
9
votes
3
answers
23k
views
Linux /etc/security/limits.conf explanation
Can anyone explain (or know of a source) that provides details about the items in limits.conf? The man page doesn't give much detail.
For example it says:
rtprio
maximum realtime priority allowed ...
- 93
8
votes
2
answers
17k
views
Monitor open files limits, etc
We've been hitting the max open files limit on a few services recently. There are also a bunch of other limits in place. Is there a way to monitor how close processes are to these limits so we can be ...
- 205
6
votes
3
answers
7k
views
How to use iptables or tc to limit packets per client.
I have some problem network clients which send data too fast.
I want to slow them down, using iptables, or possibly tc.
I've seen iptables solutions like:
sudo iptables -A INPUT -m state --state ...
- 2,138
5
votes
2
answers
10k
views
FAT32 limit on total length of all filenames in a directory combined?
I've kind of a weird problem on one of our customer's backup harddrives: The harddrive is formatted in FAT32 and last night our backup jobs threw an error on a subdirectory, claiming that it couldn't ...
- 259
5
votes
1
answer
2k
views
Limit number of concurrent users switching to root account?
This is for Ubuntu 14.04 and Centos 7.
I need to limit the number of users actively running as root. i.e. Logged in as root on the CLI.
Basically, I want only one user at a time to be able to run ...
- 2,638
5
votes
1
answer
6k
views
How to apply memory limits to all cron jobs?
On a shared server (Debian Jessie), there are some memory limits (and other limits, like number of processes) that apply for a group of users, configured in /etc/security/limits.conf.
It seems that ...
- 151
4
votes
2
answers
3k
views
When NOT to use virtualisation?
When virtualisation was new, we tried to virtualise everything, but then we noticed use cases where the our virtual machines were much slower than a bare metal.
For us, we use the following rules ...
- 7,757
4
votes
4
answers
11k
views
Setup "open files" limit in Linux per user. Cannot setup more than 1024
I try to increase open file limit for certain user on CentOS 5.5 Linux.
I added a new line to /etc/security/limits.conf:
seed hard nofile 10240
Then do test:
runuser -s /bin/bash - ...
- 168
3
votes
1
answer
8k
views
how do i set hard and soft file limits for a non-root user at boot?
I have a xen HVM vps and I'm trying to raise the hard and soft file limits for nobody at boot time. I'm using Ubuntu 10.04.3 and inside /etc/security/limits.conf I have:
nobody soft nofile ...
- 945
3
votes
4
answers
844
views
If I upgrade an ext3 fs to ext4, will it automatically increase the maximum amount of directories per directory?
Due to an external unavoidable situation*, I need to have more than 32k directories in a directory (but as far as I can tell, less than 64k). I'm hitting the limit of ext3. I presume the original ...
- 7,518
3
votes
1
answer
7k
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Linux : Count Open Files for Process
How can I check how many open files are currently used?
Checking on PM2 is just an example:
I found the PID:
ps aux | grep pm2 | awk '{ print $2 }'
Checked that there is a limit of 65536 ...
- 133
3
votes
1
answer
4k
views
Ubuntu: Unable to change limit for number of open files for root (all users), what could be the reason?
I Have an Ubuntu 16.04 server.
When I run as root, ulimit -n I get 1024.
When I run it as my user I get 65535.
But I want to make sure that all users, including root has the open files limit set to ...
- 10.9k
3
votes
1
answer
4k
views
High CPU usage by WMIPRVSE.EXE process at regular intervals in Windows
I noted eventually at production server with almost 200.000 handle and wmiprvse.exe process with high cpu usage.
The server has approximately 200 processes running on Windows server 2012-R2 (...
- 46
3
votes
2
answers
4k
views
Find out limits of other user
On CentOS 6.4 / 64 bit - how to find the limits of the user "nobody"?
Because I can not just su - nobody and call ulimit -a:
# id nobody
uid=99(nobody) gid=99(nobody) groups=99(nobody)
# su - ...
- 734
2
votes
1
answer
10k
views
From which Apache version onward is LimitRequestFieldSize no longer hardcoded to 8k max?
Title says it all:
from which version onward is the LimitRequestFieldSize no longer hardcoded to a max. of 8k?
It seems 2.2.15 is still affected.
- 309
2
votes
2
answers
597
views
Process limit for user in Linux
This is the standard question, "How do I set a process limit for a user account in Linux to prevent fork-bombing," with an additional twist. The running program originates as a root-owned Python ...
- 161
2
votes
1
answer
5k
views
How do I increase the open file limit on Linux?
I am using CentOS 7. I found out that the current value can be seen using $ ulimit -a (look for open files).
Or just $ ulimit -n
Then I try to edit these limits by editing the file at
$ vim /etc/...
- 301
2
votes
3
answers
18k
views
How to setup a traffic limit per user on OpenVPN?
I am setting up a VPN server using OpenVPN. The authentication method is the certificate one (different certs for client and server). The VPS has 1TB of traffic monthly.
I plan allowing up to 4 ...
- 21
2
votes
1
answer
1k
views
KVM Raw file size limitations
What are the technical and practical size limitations of raw disk files to be used with KVM? Can I create a 2 or 3TB raw disk file as a data drive for a KVM based windows virtual machine (acutally ...
- 398
2
votes
2
answers
3k
views
Fork-bomb Protection on OS X - Limit processes with ulimit?
Got introduced to the fascinating world of UNIX about a year ago, but after, for lack of a better expression, "the waste-matter colliding with the rapidly spinning blades" today as a result of my ...
oms
2
votes
1
answer
2k
views
EKS Pods with ephemeral-storage constantly evicted
I'm working on EKS v1.20.11-eks-f17b81 and I'm facing an issue with a Java container Alpine based. Basically my deployment have the limits of ephemeral-storage for the request's and also the limit's ...
- 21
2
votes
1
answer
1k
views
Can quotas and limits checked at organization level in Google cloud?
Please help me on my question,I spent a lot time to know the difference between quotas and limits and for checked out quotas at organization level.
As I am seeing some limits are their per ...
google-cloud-platform
2
votes
3
answers
969
views
What are performance limits of a database?
What are some rough performance limits (read/s, write/s) for a single database server (no master-slave architecture), assuming storage on disk? How many read/s, write/s, depending on the kind of disk? ...
Tommy
1
vote
3
answers
419
views
Limiting specific process to just one per user
My scripts are using wget to retrieve data from Internet. When many users are using this script I got very high load (about 20.00), because of disk I/O. Wget is automatically started each hour by cron....
- 568
1
vote
3
answers
97
views
Aggregation under the radar [closed]
I'm considering writing an application that aggregates information from a fairly popular website. This application would request information from this website at a set interval. I know this is a ...
- 143
1
vote
1
answer
3k
views
What is the upper limit (maximum limit ) of WinRM MaxShellsPerUser
For executing the remote powershell commands i need to configure WsMan, In WsMan MaxShellsPerUser specifies the maximum number of concurrent shells that any user can remotely open on the same computer....
- 127
1
vote
1
answer
1k
views
How to current Linux process count (compared to pid_max)
How can I get the number of Linux processes (including lightweight processes)?
I want to see how many before I hit the limit dictated by /proc/sys/kernel/pid_max.
- 399
1
vote
1
answer
850
views
nginx and Mysql Server Load limits (depend on Server config)
my server config is
Technology: Ivy Bridge
Processor: Intel Xeon E3 1245v2
Intel Smart Cache: 8MB
Cores: 4
Threads: 8
Frequency: 3.4GHz+
Turbo Boost: 3.8GHz
Virtualization: yes
...
- 11
1
vote
1
answer
5k
views
systemctl limits - solr complaining
I'm building a solr server (on Ubuntu 18.04, using the repo solr-common and solr-jetty). On startup, solr was reporting that nfile and nproc (1024, 6721 resp) was set too low. I ran systemctl edit ...
- 22.7k
1
vote
1
answer
881
views
How to change max file limits on a process
Yes I know this question has been asked before and I have tried all the solutions I have seen and none of them work for me. We are running Ubuntu 12, and we have a process that automatically gets ...
- 151
1
vote
1
answer
447
views
Bootup process does not respect file limits config in Ubuntu Linux
I have open files limit configured in /etc/security/limits.conf
* hard nofile 500000
* soft nofile 500000
root hard nofile 500000
root soft nofile ...
- 823
1
vote
1
answer
3k
views
Is it possible to increase the max limit of 10 pc's to any number of times without making the user a domain admin?
Normally a domain user has a maximum limit for 10 computers to join to a domain. But what i want to know is, is it possible (by joining a account to a group) to do this any number of times without ...
- 11
1
vote
1
answer
736
views
Can I globally set to cut off too big cron e-mails?
Is there a way to limit the body of all e-mails sent out by cron (to MAILTO receivers) to a specific length. If the particular output exceeds the limit, it just gets cutt off at that point.
Is there ...
- 113
1
vote
0
answers
227
views
Iptables, Limit the number of IPs connected to a specific port per second
iptables can limit connections per ip at the same time with the --connlimit command .
but I want to know is there a way to limit connected IPs at the same time?
for example, if you limit connections ...
- 11
1
vote
0
answers
20
views
Marking services for killing in a resource-starvation situation
We use systemd --user to run certain services of our own. In some cases, these "get out of hand" -- spawn way too many processes, which exhausts RAM and causes the machine to "thrash&...
- 2,411
1
vote
0
answers
343
views
RHEL8 Limits not applied when setuid is configured
I have configured my limits.conf file to allocate a huge stack size
* soft stack 65535
* hard stack 65535
ulimit -s shows the correct value for both root ...
- 111
1
vote
0
answers
652
views
Force nproc ulimit on non interactive user
I have a script that can be launched n times at the same time through php-fpm. php-fpm pool is set to run under a certain username and I want to limit the number of processes this username can launch.
...
- 1,164
1
vote
0
answers
300
views
OOM using CRON but not using SHELL
When I start a java program by shell, everything is working well. However if I start the same program with the same command and same user by CRON, I get a java.lang.OutOfMemoryError just after a few ...
- 11
1
vote
4
answers
38k
views
Exchange 2010, 2013 and 2016 maximum mailbox size
Which is the maximum size limit for a single mailbox in exchange 2010, 2013 and 2016?
- 21
1
vote
1
answer
3k
views
How to configure the niceness or priority of service started on boot
I want to increase the niceness of an service (decrease the CPU priority) started as an dedicated user or group during the boot process. I'm not able to define the niceness or priority in the /etc/...
- 11
1
vote
0
answers
763
views
How can I limit total quota using squid without authentication for per user
I am having Raspberry Pi running Raspbian, I have configured it as a wifi hotspot using hostapd and dhcpd, I have configured transparent squid proxy server on it. Now all traffic goes through my proxy ...
- 111
1
vote
1
answer
835
views
Changing ulimit on ubuntu 12.04 Never works
I am working with hadoop and need to change number of open files ulimit -n. I have seen similar questions on stackoverflow and elsewhere and have tried everything in those answers, but it still does ...
- 166
1
vote
0
answers
161
views
Stack , data and address space limits on an Ubuntu server
I am running an Ubuntu server which has around 5000 users. The users are allowed to SSH in to the system.
So in order to cap the memory used up by a process I have capped the address space limits ...
- 149
1
vote
2
answers
965
views
Setup MySQL per account limits similar to shared hosting
Similar questions have been asked before, such as this one, but none of the answers I've seen so far really tell me what I'm after.
I have a need to set up a Linux box for internal development and ...
- 27.6k