Questions tagged [hangs]

Hangs is a speaking term for describing the event that a server or program gets stuck in its own code. This will cause the server to not respond, but neither will it shut down. You will only see a frozen screen and can't do anything, besides forcing a restart by pressing the power button or removing the power.

37 questions
5
votes
1 answer

Linux server hangs, where to look for possible reason?

Linux server hangs for several times without knowing the exact reason. Which file or log should I look at? The server responds to ping, but I can not ssh to it. And when I plug a monitor into it, it does not have any response. Any idea?
snow8261
  • 169
  • 1
  • 1
  • 6
4
votes
2 answers

apache hangs frequently with semop

My Apache hangs frequently with multiple threads. Each process get stucked for hours. Backtrace looks like this: (gdb) backtrace #0 0x00002af60c22b2d7 in semop () from /lib64/libc.so.6 #1 0x00002af60bbf612c in ?? () from…
PiTheNumber
  • 315
  • 2
  • 5
  • 18
3
votes
0 answers

Kubectl logs hangs for hours and then returns to works normally

Kubectl logs hanginging for hours and shows something like: Unable to connect to the server: read tcp 192.168.69.227:57692->35.188.160.72:443: read: connection reset by peer We have no idea how to start debugging this problem that happens…
Renato Prado
  • 133
  • 5
3
votes
2 answers

nginx + PHP-FPM (7.0) hangs on some requests

I'm experiencing a weird issue with nginx + PHP-FPM hosted web app build with Symfony2. Basically, from time to time, there's a request that is not handled, instead the browser shows that it's waiting to start receiving (the wheel in chrome is…
user401676
  • 41
  • 1
  • 3
3
votes
2 answers

MySQL SELECT query hangs

On my server I have 6 MySQL databases. They all power Wordpress websites. For some reason, 2 of these databases are not accessible. To my knowledge they use INNODB, but I can't confirm it as even doing a: mysql> use INFORMATION_SCHEMA; mysql> SELECT…
Thomas Lomas
  • 131
  • 1
  • 1
  • 5
2
votes
1 answer

problems with ssh connection: sometimes succesfull/sometimes timeout/sometimes hangs

I have a problem with ssh connection. I am using my ubuntu 16.04 client to connect to centos7 server. I use ssh-key pairs to establish connection. But then a lot of weird things happens: Sometimes I can connect to server without problems sometimes…
K.I.
  • 121
  • 1
  • 3
2
votes
1 answer

How to solve intermittent server hangs? Write to (and read from) a disk stops completely

We have a LAMP server for about 6 months. CentOS 7.0 It ran non stop without a restart for the first 3 months then it hang. Then it run for the next 2 months (also non stop without a restart) then it hang again. Then it run for the 14 days then it…
alxsr
  • 21
  • 3
2
votes
1 answer

Ubuntu 12.04.2 LTS Server - Randomly hangs with no logging

My server randomly hangs and becomes unresponsive without any logging (dmesg, syslog, kern.log, boot.log, and messages). I cannot predict when it is going to happen. Sometimes the server runs fine for months and suddenly it starts to happen again.…
msbrogli
  • 273
  • 1
  • 3
  • 8
2
votes
0 answers

libvirt / kvm guests take very long time to start after host reboot

Host system is CentOS 6.5 x86_64. I have setup an Ubuntu guest by following this wiki. The guest works, but: if I reboot the host, it takes a very long time (about 30 minutes on the last reboot) before the guests actually start. If, during this…
Matt
  • 1,037
  • 2
  • 14
  • 20
2
votes
1 answer

vmware virtual machine keeps freezing

Strangely I have a virtual machine that keeps constantly freezing for some seconds or minutes. On the OS side, the CPU and memory used are quite low. On VMWare side, it's the same, the machine never uses more than 50% CPU. All other machines on the…
db_ch
  • 638
  • 5
  • 14
  • 20
2
votes
3 answers

MySQL on ubuntu very high IOWAIT

Can anyone advice what is going on with my setup. I have mysql server on ubuntu which periodically produce very high iowait. for long time up to 10-20 minutes. During this time system and database almost not available. Sit that using this database…
user330026
  • 21
  • 2
2
votes
2 answers

ssh initial prompt hangs for 10 minutes but console login and initial prompt is very responsive - why?

I have been running an ESXi 4.0 server for months with a couple of WinServer2003 and several Ubuntu Server 10.4 VMs. The performance has been impressive on 6GB i7 Asus P6T hardware. Suddenly, a week ago, ssh logins to the Ubuntu VMs take 10 minutes…
rfreytag
  • 1,115
  • 1
  • 10
  • 11
2
votes
1 answer

MySQL queries hang site

I recently moved from a Dreamhost shared hosting account to a Linode 512mb VPS. The switch has been rather smooth for normal day to day operation of my site but some problems with MySQL have cropped up. A little background on my setup because I'm…
2
votes
1 answer

Apache forks a very high number of threads, and hangs

We have moved one of our sites to a new server, which once in a while completely hangs. At first this happened very rarely, maybe once per month, but now it's starting to happen every day. By hangs, I mean that all the requests time out, and trying…
K. Norbert
  • 437
  • 1
  • 3
  • 10
1
vote
0 answers

Windows 10 offline <-> network drive nightmare

I'm banging my head against the walls due to a very weird problem we have at my company. First of all, my problem occurs only on W10 workstations (no matter the hardware, the build version or with GPOs enabled/disabled) AND our clustered file…
Nemesis
  • 31
  • 3
1
2 3