Questions tagged [lsof]
Lsof is a tool to list opened files by processes
11
questions
14
votes
3
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Link to a specific inode
I have a file that was deleted, but is still held open by a program. I found the inode number using lsof. How can I create a hard link back to that inode?
- 20.7k
18
votes
1
answer
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What's the difference between `lsof -p <pid> | wc -l` and `ls /proc/<pid>/fd | wc -l`?
Background: I'm playing around with monitoring the ulimit for running processes for a particular user. (I had occasionally seen processes that were getting started with an incorrect limit.) I asked a ...
- 283
10
votes
4
answers
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Running lsof -i shows a lot of connections in CLOSE_WAIT ? Should I worry
So I am running lsof -i | wc -l periodically and it is telling me that out of 420 lines, between 240 and 255 are in CLOSE_WAIT state. How does TCP connections enter this state?
Should I be worried ...
- 203
10
votes
1
answer
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How can I observe what nginx is doing? (to solve: "1024 worker_connections are not enough")
I have a very low traffic site running on nginx, with 4 workers, 1024 connections each.
Every several hours I start seeing in the error log "1024 worker_connections are not enough", and my site slows ...
- 2,364
5
votes
1
answer
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Why is rpc.lockd obscured from netstat/lsof output?
Prologue:
On a number of machines, which happen to act as NFS clients, netstat reports two ports that are open with no PID listed for an associated daemon. Ordinarily this might be a bit concerning.
...
- 25.8k
5
votes
3
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lsof for files opened by other users
How do I see the list of files open (lsof) in a specific directory and by other users?
I can do lsof +D /path, but that only shows current user's files.
Any way to see if other users have opened ...
Ash
3
votes
1
answer
4k
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Custom lsof output
The following command produced the unix domain socket opened by PID 30661
$ sudo lsof -U -a -p 30661
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
haproxy 30661 haproxy 7u ...
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2
votes
1
answer
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lsof shows tmp growing file marked as deleted
I have a cron that generated a lot (15GB) of PHP warnings and was writing them in a log file.
I killed the process and as a temporary measure I stopped redirecting stderr to stdout so I don't fill up ...
- 155
1
vote
2
answers
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Unknown process on port, lsof no help, nfs-kernel-server?
During a standard security sweep we found out a something was listening on a port unknown to us, 2030, and we are having trouble determining the source.
# netstat -anp | grep LIST
tcp 0 0 ...
- 991
0
votes
1
answer
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Find what is using disk space in CentOS 7 (du vs df vs lsof)
I have a server, CentOS 7, that show disk usage on DF way higher than you can see on DU and I trying to understand why
DF shows 38GB used
DU shows 14GB
There is no mount point on any folder
Checking ...
- 23
0
votes
0
answers
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Centos 7.4, dev/vda1 is 100% [duplicate]
My VPS on DO now has an issue of dev/vda1 is 100% since around 3 months ago, at that time, I did poweroff & reboot then disk spaced freed.
But the thing rans into some bigger issue since 1 week ...
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