Server :: Box Is Hanging And Overloading?
Apr 10, 2010
I have mysql server ( OS:FreeBSD) is have 8 cores cpus and 8GB RAM.
Sometime, Box's top is not showing the cpu utilization. Output looks as follows
last pid: 44258; load averages: 0.38, 0.42, 0.23 up 0+16:31:11 07:15:14
169 processes: 14 running, 136 sleeping, 19 waiting
CPU: % user, % nice, % system, % interrupt, % idle
[Code]....
Moreover, WCPU is >98%. But not much processes are running on that server.
get the info about cpu or box ?
1. How to proove that box is having CPU issue
2. Is it related to memory ?
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Jun 23, 2011
Iam handling mail server in redhat.MTA using is qmail.since last 1 month it get overload and get hang...since in morning its time for user to loging into mail through web interface.though suddenly login in to mail it get overload and server got hang.we need to restart the server...did not get time to kill https also some time MP port work to save us...still didnot get command to overcome the over load in server...
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Apr 1, 2010
Apache is overloading the server executing as the user nobody.
Below I give the output of top -c
Code:
What might be the possible reason for overloading. I can give more visibility to this if required.
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Feb 1, 2010
Our mail server keeps on hanging after a while. This happened after there was a breakdown in electricity supply and the server room air conditioners stopped working for almost half a day. We are not sure whether this is a server hardware problem or a coincidence with a break-in attempt or malware activity.
Following are the message from the server log code...
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May 23, 2009
recently my server become a little slow and lazy, so I started a small investigation what's going on and found out, that there is some problem with network.All processes which uses network are able to use 99% of CPU time when they got any requests. First time i thought it's only a bad configured Apache but after some research I found even FTP or SSH does it if they have to do something more (for example getting data to another server using rsync).So far I wasn't able to find a cause of this. No new software installed, only updated every few days. I have another server which have the same config, same software, same hardware and is updated in same days. But this one works without any problem. I think it's probably hardware (LAN) leaving me to it's creator. Is there some way how can I test if it's really LAN or just something bad happened to the system?
Also there is another issue - maximum speed dropped down to 20-30kB/s for both download or upload.It's Debian Lenny 2.6.22-6 if you need to know.
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Sep 14, 2010
I seem to have the following problem with Ubuntu. I have two PATA drives in my server. The OS is loaded on the first drive which is the master and the server functions fine. This is what I want to do is to have two 120 gig drives in the system and mirror them. When I put the second drive in set to be a slave the bios see's both drives. After the bios shows what is in the system it hangs with the cursor in the upper left hand corner and will not boot beyond that point. If I unplug that second drive it will boot up with no issues.
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May 5, 2011
After upgrading to 11.04 I find that if I launch ubuntuone my machine immediately slows to a crawl and there is intense hard drive activity.This persists for hours. Only solution so far is to close ubuntuone and remove it from list of startup applications. I have made no changes to the files marked for ubuntuone syncing, and everything worked fine in 10.10.
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Jun 7, 2011
After a powercut in the middle of the night (UPS battery also ran out before power came back) my server is now hanging on boot.This is where it gets, and it just hangs indefinitely:
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Feb 3, 2011
I've got a server running CentOS 5.5. I used the automated iptables config tool included in the operating system to allow traffic for vsftpd, Apache and UnrealIRCd. When I send large files to FTP, even from the local network, it works fine for a while and then completely times out... on everything. IRC disconnects, FTP can't find it and when I try to ping it I get "Reply from 10.1.10.134: Destination host unreachable" where ..134 is the host address for the Win7 box I'm pinging from. This is especially frustrating as it's a headless server, and as I can't SSH into it to reboot I'm forced to resort to the reset switch on the front, which I really don't like doing.
Edit: the timeouts are global, across all machines both on the local network and users connecting in from outside.
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Apr 1, 2010
I recently moved my site to a new server (Apache 2, PHP5, MySQL5). The site is an Invision based forum. Every few posts / topics it just hangs. The data has been written because if you stop and reload, the post / thread is there. I thought it was a write issue initially, but nope. So, the data is written but the page load never completes. It doesn't leave the page where the data has been input.
Whats the best way to trouble shoot this issue? The only thing I have done recently is reduce my MySQL timeouts, but I can't see that being an issue as the values are still big enough and there are no mentions of timeouts in the MySQL log. (For the record there is nothing in PHP's error log either)
I have checked my server-status. It all looked ok, but I have a suspicion I was hitting my ServerLimit, so I doubled that. Also enabled my Keepalives. Will keep an eye on it.
Some additional info;
1. Apache is throwing seg faults, but enabling core dumps does not produce them.
2. I have tried disabling the modules in apache but it just stops things from working.
3. I fear it may actually be DNS related. If I watch Live Headers in Firefox, absolutely nothing happens during this 'hanging' period. After that, the responses come back fairly promptly.
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Dec 29, 2010
What is the best method for debugging the booting process? Is there a cheatcode (tried debug and failsafe). Slackware 13.1 with standard linux kernel 2.6.35.8. I having a problem with a dell server 2860 booting my build. It is hanging on
[Code]....
Booting my previous kernel 2.6.27.27(different disk with different initrd.gz) it loads the same as above but continues with
Code: loading iSCSI transport class v2.0-870 iscsi registered transport tcp I'm stumped it the problem is with the ata_piix module or the iSCSI transport module or some firmware I might be missing. I booted other pcs without issue.
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Apr 16, 2011
I'm having a bit of an issue using overloaded operators in an already overloaded operator. In my following code, I have overloaded the && operator to compare two Course objects. The operator in turn goes to a function which calls other overloaded operators to compare private object variables of that object to compare them.
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Feb 22, 2011
I recently upgraded my Opensuse dom0 from 11.2 to 11.3, and so Xen from 3.x to 4.01.Ever since, Windows HVM domus hang after a random amount of time. Always within 24 hours of starting though.The VMs are XP and W7, and have tried both hvm drivers and gplpv drivers. There are no errors in xend.log, or the qemu-dm logs or xm dmesg. I have tried apic and acpi both on and off.
If I VNC to them, I can see that they have simply stopped.If I force them off and start them again, there is nothing in the event log of the VM, it just stops and becomes unresponsive, with no associated log entry.I have re-installed one of the VMs from scratch, with a slightly different version of W7. No difference. The stalling even happens during installation, so it doesn't seem like any software I have installed or configuration could be related.
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Jul 23, 2010
I'm trying to boot to install ubuntu 10.04 via a USB, and it keeps hanging on:
pciehp : PCI Express Hot Plug Controller Driver version : 0.4
and it sits there for a long time, and nothing happens..
This is an HP Pavilion dv5000 laptop with a 120 gb IDE hard drive, 2gb of ram, if you need any more info lmk, but I can't boot into windows.
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Jan 1, 2011
Using the latest version of Ubuntu. Trying to ftp to an ftp server. Able to successfully login through terminal but when I try and list the contents of a folder I get "200 PORT command successful" and then it just hangs. I thought it might be the server but I've tried it on different Mac and Windows machines and was successful. I can only assume there's something in Ubuntu which is blocking it.
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May 2, 2011
I have installed ubuntu 11.04 via wubi.My machine stuck while i was browsing internet.This is happening frequently.This happened with direct installation.Same thing happened when i tried 10.04,mint.
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Oct 17, 2010
two months ago i bought a fujitsu siemens pc (pentium 4)and installed ubuntu 8.04. initially the computer was very slow and you couldnt run many applications at once, in the end it just becomes very slow and even hangs. it could take years to open open office word processor, so i thought it had a problem with the RAM. it initially had a RAM of 256MB, so i bought another 256MB and made it 512. it started to work very fast and it could open word so fast, i could run many applications at once until recently when it began to hang again even when there is only one application running, but it still is very fast, though it hangs often, is there a solution for this problem? i am oftenly forced to restart the machine and its boring.
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Mar 7, 2010
Using slack 13 this started happening after my last 'upgrade-all' with slackpkg where I think it updated ssl and sea monkey. When I shutdown (fluxbox) it hangs at "starting up x11 manager" I have to ctrl alt del to get it moving again.
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Mar 21, 2011
i am trying to install ubuntu 10.10 on an eee pc 1000H but the installer is hanging on the installation dialog that shows the check list for installation (min. disk space, connected to the net, plugged in to wall outlet, etc) i check all the options here and then click forward. this is where the installer is hanging.
i had successfully installed ubuntu on this machine before but then i replaced it with 11.4 open suse.now i am trying to replace the open suse with ubuntu because the open suse did not work well.
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Jun 25, 2011
On 2 of my Debian squeeze machines (amd64 and i386)apt-get upgrade
hangs with the following message
samba (2:3.5.6~dfsg-3squeeze4) stable-proposed-updates; urgency=low
* Please note that upgrading to 3.5.* series, the "map untrusted to
[code]....
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Sep 24, 2009
I am working on Fedora core 4 with kernel verion 2.6.11.. I am running a Manager process which spawns child process. If a child process exits , the SIGCHLD signal is processed in parent process and it is forked again. When the parent process receives a SIGTERM signal it first tries to kill the child process using SIGTERM signal . if the child process dosen't get stopped then kill it using SIGKILL. Now,the Parent process sometimes gets hanged and the strace shows :
futex(0x98535e0, FUTEX_WAIT, 2, NULL <unfinished ...>
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Mar 14, 2010
My Fedora setup is working great so far, and I don't really have any complaints. I installed it on a portable hard drive, connected over USB. Thing is, I installed my system with the LiveCD, and I wanted to download the full DVD for a friend because of his needs for his system. When I try to download the full DVD (whether over Firefox or Transmission), the system hangs by suddenly showing a screen with the Fedora logo in the middle and a light blue background, the same as in boot up. Also, my caps lock blinks in a consistent fashion like a metronome. The same happens whether I try to download to the portable hard drive or to a FAT32 partition on my laptop's actual hard drive. Is there any way to fix this, or can I be calmed by the fact that it just happens because it's installed on a portable hard drive? This problem isn't happening on Ubuntu (which is installed on my laptop's hard drive), where I am downloading from right now.
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Jun 11, 2010
I've been having trouble with my desktop ever since I upgraded from F 11 to F 13 last night. Finally, however, I got the proper version of the nVidia drivers installed. However, it's stopped completing boot. I've edited grub at boot to get it to show the boot messages and find that the last thing it reports is success in registering the binary for Windows applications. After that, it just sits there, doing nothing. I can go to an alternate console an d log in, but that's all.
If I log in and run startx, it fails.It reports that it was unable to load the nvidia module and "no screens found." Does anybody know what I should do next?I've removed both kmod-nvidia and akmod and am going strictly with the nouveau drivers.I've booted, used Ctrl-Alt-F2 to get a console, logged in as root and run the setup program to configure X to run that way, then returned to the main console and logged in as myself. Shortly after my wallpaper shows up, and long before I have a working desktop, it goes white and stays that way. Aside from getting a different video card (The old one worked Just Fine right up until I upgraded.) what else can I do?
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Jul 19, 2010
I installed adobe reader quite some time back. It was working fine. Nowadays it gets stuck up and then the screen fades out and then after some seconds it gets back to normal. What could be the problem.
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May 3, 2010
At boot, the system hangs before reaching runlevel 5. No X, no alternative non graphical shells.
Since I have a video card Radeon 9200 I checked the ATI issues. I am running with the radeonhd drivers as suggested. If I boot in failsafe mode, X starts with a really low definition (800x640?), but when booting normally, the system hangs again.
I tried to create a xorg.conf file. Sax hangs the same way as when booting. I created anyway a reasonable xorg.conf using
Code:
Xorg -configure
The first reboot works, from the second on I am stuck again.
I am running suse 11.2 32-bit on a AMD at 64 bit.
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Mar 10, 2010
I am in serious trouble apparently.
System boots up to loading NVIDIA drivers, it shows mouse pointer then it hangs up!
This happened after brutal force rebooting, because system did not responded properly (especially Nautilus). Probable cause:
forget to unmount.cifs a windows shared folder in the network (mounted with mount.cifs). It happened to me already sometimes (to forget umount.cifs), but never ending with this permaenent hanging up)
-tried automatic system repair with suse boot DVD. It repaired something + changed the bootloader. Problem still there
-rebooted--> system hanging up after NVIDIA drivers. code...
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Jul 19, 2011
I'm having problems booting up my Fedora 14 system. I see the Fedora splash screen (the one with the egg-like logo that colorizes as it loads); the logo fills up completely and then everything hangs - all I see is the egg logo, and nothing else is ever displayed. I also can't get to any of the ttys via the CTRL-F1 sequences.
I can boot into single user mode just fine. The install scripts all run just fine. The system itself is actually up an running, so I suspect this is either something in the KDE startup, or after init processes all of the start up scripts.
I'm assuming this isn't a startup script problem, because I see a "started XXX" message for every service in the rc.5 directory - in other words, all the startup scripts ran from rc.5.
So, how do I find out what is hanging? I'm not seeing anything in /var/log/messages, and pstree didn't tell me much about what init was doing.
I used to be able to follow inittab to see all the things it did at boot, but since inittab was stripped of everything it used to do a few releases ago, I don't know what init is doing anymore.
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Apr 25, 2010
I am running Ubuntu 9.04 on a wireless networked host machine. The wireless NIC is usb based. Its running inetd for network based servers (telnet, ftp etc).For some reason telnet, ssh or any application specific connection, hangs for a few seconds and then comes back. This happens after every few minutes. I do not loose any sessions or any data flowing across but it is sort of very annoying.It is a dual boot machine and I have also got Windows XP 64-bit. When am running on windows this does not happen, hence am not sure if it is something to do with the wirless nic or something else
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Jun 18, 2010
why it's hanging up.It hangs up 5 mins after startup whether or not any application is running.
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Sep 20, 2010
There's a strange problem, after installing ubuntu 10.04.1 using wubi.
The installation goes fine in Windows, unpacks to an empty 15gb ntfs partition. After restarting to complete the installation, it would'n find the grldr but fixed that by copying over the wubi* files installed in C:.
Now the problem, the boot screen shows for a few seconds, switches to the default ubuntu wallpaper, the mouse cursor is there and working, and that's it. The installation doesn't continue, the keyboard won't work; Also I've tried all the additional options the installation offers when it asks to press Esc.
The system:
Wubi installed size: 15gb
32bit Ubuntu 10.04.1
4gb installed ram
nVidia 9800gx2
Using ubuntu for a month on my netbook determined me to add it to my desktop so I hope this gets fixed
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