Server :: Squid Excessive Memory Consuming On Fedora 12?
Feb 7, 2011
There is squid 3.1.8 on a Fedora 12 server with 2 GB of RAM. It is used for sharing the Internet for approximatively 80 PC's. The problem is that it is really a memory hog, when enabling delay pools. I am using the following configuration for the memory pools:
Code:
delay_pools 1
delay_class 1 2
delay_access 1 allow drumuri
[code]....
There are moments when the squid process uses approximatively all the RAM and goes into swapping. After that I restart it, it goes well for a while and again eats up all the memory. On the Internet it says that Squid uses a lot of memory, but should it use 2 GB of memory, even if all 80 people are online at the same time?
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Nov 23, 2010
I'm using Firefox 3.6.12 on Fedora 14 (64 bit) and have noticed that after using it for a while (and/or leaving the browser open for hours at a time), it becomes almost unusably slow and uses an excessive amount of memory. For example, any of the following can cause Firefox to temporarily (for 5 to 10 seconds or so) stop responding:
- clicking on a link
- opening or closing a tab
- scrolling
It will always start responding again, sometimes after the window darkens (to indicate that it's not responding) but it's so bad that it can't really be used. Closing it and opening it (restoring the tabs) again fixes it for a while, but the problem recurs. Regarding the memory usage, it was using 850MB (according to System Monitor) when I closed it, and having re-opened it and restored the tabs, it's now using under 200MB (but appears to be rising).
Another way that this manifests itself is that when trying to watch a Flash video (like iPlayer), it pauses for a second every 30 seconds or so, making it very annoying to watch them (I've switched to Chrome for this now, and am tempted to switch for general browsing, but like the plugins in Firefox).Is anyone else having these issues, and does anyone have any suggestions on how to fix it?
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Dec 5, 2009
I just noticed this in my "df" output:
[Code]...
There's an entry in /etc/fstab which mounts this automatically. If I interpret that correctly, that's a 224 mbyte ramdisk that is consuming 224 mbytes of system memory whether or not I use it. Is that correct? If so, will anything break if I unmount it and delete it from /etc/fstab? Do programs typically depend on it? I'd like to reclaim the system memory (low DRAM machine) for other uses.
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May 4, 2010
I've just upgraded to 10.04. I love it. I've been running dark themes for a long time and this upgrade merged seamlessly with my setup.There is a nasty problem that I've noticed on only my desktop box (laptop is fine, also upgraded to 10.04). The dbus-daemon is hogging approximately 50% of my cpu cycles. Is there a way to limit this? I'm watching this via the System Monitor and the % CPU. My laptop registers its dbus-daemon % CPU as 0.
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Nov 13, 2010
bind9 is taking a lot of the RAM
process info:
ID Owner Size Command
17559 root 290396 kB /usr/sbin/named -c /etc/bind/named.conf
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Jul 21, 2011
Just noticed from the "top" command that one of my least heavily used box is swapping excessivly by a program called setroubleshootd. Following is the top section of the "top" command sorted by Swap used for both boxes. Also tried checking it out to see if there's a "service setroubleshootd restart" but when I checked the status I got the following.
Code:
[root]# service setroubleshootd status
setroubleshootd: unrecognized service
Lightly loaded box with lots of swapping
Code:
Tasks: 85 total, 2 running, 83 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 98.0%id, 1.7%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 1026880k total, 983528k used, 43352k free, 59604k buffers
Swap: 2064376k total, 355692k used, 1708684k free, 121996k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
3319 root 15 0 1202m 665m 5748 S 0.0 66.3 23:29.99 537m setroubleshootd
3845 root 34 19 253m 14m 2188 S 0.0 1.5 0:34.41 238m yum-updatesd
3841 gdm 16 0 216m 5300 4236 S 0.0 0.5 0:00.15 211m gdmgreeter
3822 root 18 0 190m 2208 1568 S 0.0 0.2 0:00.00 187m gdm-binary
3824 root 15 0 185m 3948 3236 S 0.0 0.4 0:00.11 181m gdm-rh-security
3725 root 16 0 163m 2532 1920 S 0.0 0.2 0:00.00 161m gdm-binary
3500 root 18 0 130m 2140 1240 S 0.0 0.2 0:00.00 128m cupsd
Heavily used box with little swapping
Code:
Tasks: 118 total, 4 running, 113 sleeping, 0 stopped, 1 zombie
Cpu(s): 4.7%us, 0.3%sy, 0.0%ni, 94.7%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 2059580k total, 1928356k used, 131224k free, 162032k buffers
Swap: 4095992k total, 12k used, 4095980k free, 1336632k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
3842 root 34 19 253m 17m 2196 S 0.0 0.9 0:34.20 235m yum-updatesd
3284 root 15 0 301m 77m 6004 S 0.0 3.9 2:23.30 223m setroubleshootd
3840 gdm 16 0 216m 16m 7064 S 0.0 0.8 0:00.43 199m gdmgreeter
3814 root 18 0 190m 2352 1644 S 0.0 0.1 0:00.00 187m gdm-binary
3816 root 15 0 185m 4112 3384 S 0.0 0.2 0:02.90 181m gdm-rh-security
3724 root 15 0 163m 2588 1976 S 0.0 0.1 0:00.00 161m gdm-binary
3465 root 18 0 141m 14m 1824 S 0.0 0.7 0:00.06 127m cupsd
12799 daemon 18 0 103m 3708 648 S 0.0 0.2 0:00.00 100m httpd
12396 daemon 15 0 112m 13m 3440 S 0.0 0.7 0:00.99 98m httpd
3556 root 18 0 103m 5260 2208 S 0.0 0.3 0:37.68 98m httpd
11778 daemon 15 0 117m 19m 3144 S 2.3 1.0 0:01.76 98m httpd
12750 daemon 15 0 106m 9096 2860 S 0.0 0.4 0:00.04 97m httpd
12673 daemon 15 0 110m 12m 2876 S 0.0 0.6 0:00.23 97m httpd
12693 daemon 15 0 110m 13m 2876 S 0.0 0.7 0:00.18 97m httpd
12666 daemon 15 0 105m 8132 2888 S 0.0 0.4 0:00.19 97m httpd
12729 daemon 15 0 112m 15m 2968 S 0.0 0.8 0:00.11 97m httpd
12588 daemon 15 0 110m 12m 2984 S 0.0 0.6 0:00.54 97m httpd
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Jul 19, 2011
How to identify which processes (or PIDs) are consuming SWAP? In my RHEL box SWAP is nearly 100 % utilized.
Code:
$ free -m
total used free shared buffers cached
Mem: 144967 143212 1754 0 166 135259
-/+ buffers/cache: 7787 137180
Swap: 22367 21733 634
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Mar 8, 2010
I upgraded via yum to 2.6.32.9-67 today and rebooted.
Running Google Picasa under wine is pretty much unusable. A quick reboot to the previous 2.6.31 kernel provided via the Fedora repositories previously solved my symptoms.
I don't think the problem is limited to Picasa but haven't done anything scientific to show what the problem could be.
Because I run on a trusty six year old laptop I visually monitor the system with the System Monitor applet. Usually slowness is i/o wait while the disk is retrieving information but on 2.6.32 it's pegged as system time eating up my CPU.
Before I report this in bugzilla, can anyone else tell me what their experiences with 2.6.32-9.67 have been?
Also, are there any fine-grained performance monitor tools that might explain what's going on to peg the CPU so high? top just shows Picasa running.. and it can be a hog doing background work at times. If it is, a reboot just continues the cpu needs not eliminates them as in my case.
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Oct 7, 2010
I am wanting to create the smallest server I can possible. I have a small server I use as a print server and for file sharing. The hard drive is about 80GB. Since I only run cups and samba, I see no reason to take up an addition few GBs with major distros just to run the OS. I know it is possible to get a small distro around 50MB or so. I would even be happy with an OS running around 200MB. what would be the best way to go about doing this? LFS is just too complicated and time consuming for the end result. Would something like Gentoo be better? Anything else that I may not know about?
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Nov 26, 2010
Just installed Fedora 14. My HDD LED is flickering constantly about 7x a second. This only happens after I start X-windows and continues if I log out. Top shows dbus-daemon at 15% CPU. I'm sure this is causing it as it only starts after X-windows.
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May 23, 2010
My squid server works fine in fedora 11 system . Is there any web like interface for admins to create,change,modify users of squid and to view their logs.
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Jan 17, 2011
I would like to ask some help and tutorial for setting up and how to configure squid proxy server in my (Home PC Server). I am a newbie in Linux Centos. I already installed in my system the CentOS 5.5 . Now, I want to configure it as my internet server, all of my 4 system running in Windows including the laptop I want to connect through my CentOS pc with username authentication. I assign all IP address by static. see tthe attachement in my set up. [url] I just want to know what I need to change and add in my squid config file. And how can I configure properly my CentOS with 2 LAN card as internet server.
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Feb 9, 2009
After having used fc5 for years, I installed fc10 in order to be able to run the newest versions of some of my tools. Under fc5, my monitor (Dell 2407FPW) and adapter (ATI Technologies Inc RV380) have happily coexisted at 1920x1200 76Hz. During the fc10 install, the monitor flickered a few times, then settled down (an auto-detect by the installation?) Now, after installation is complete, if I display a window with a lot of small text, the text is nearly unreadable because of horizontal jitter. If I move the window part-way off-screen, so that there is less small text on-screen, the jitter is somewhat reduced.
My hunch was that the installation got the ModeLine settings wrong, but when I went to edit /etc/X11/xorg.conf, I couldn't find it. I also ran a case-insensitive search for any file containing "ModeLine", starting in /etc, but nothing turned up except /etc/prelink.cache, a binary file.
I tried running Computer/SystemSettings/Display, but every time I do this, the monitor immediately goes into sleep mode, and nothing will recover it out except an X11 reboot (Ctrl-Alt-Backspace).
Is there any way to tweak the display settings other than the gui ("Display") program?
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Jan 15, 2011
I've been pulling my hair out and can't figure out what's wrong. I have dhcp, squid, and dansguardian all running on my server, but when I point a client to it for a proxy (192.168.1.15:8080) and try to get to a website, nothing happens and the connection times out. When I don't bother with the proxy, the client has no trouble getting to the internet. I've verified I can ping the server and gateway from both machines. And the services are running, no errors noted in the logs. Do I need to do any iptables or selinux changes?
My network is very basic, several clients on the same network as the server, connected to a verizon gateway. Local addresses are 192.168.1.x. The server is 192.168.1.15, gateway is 192.168.1.1.
I'm using:
* squid-7:3.1.8-1.fc12 (x86_64)
* dansguardian-2.10.1.1-3.fc12.x86_64
* Fedora 12
My squid config file:
Quote:
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
[code]....
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May 11, 2010
I have 4 servers running squid/3.1.1 proxy server. Since the latest version I can no longer FTP. I have posted this problem in multiple places but have received almost no response. I've found several other post to this problem throughout the Internet which have also gone unanswered. So, once again, I thought I'd give it a try. As I said "I have 4 servers running the newest version of Squid". When I try to access an ftp, any ftp, I receive an error (check attached image). This was never a problem until just recently. Squid should work perfectly find with ftp, it is not a strictly http proxy.
I turned my firewall off just to make sure, still had the same issue. If I jump directly on the server itself with no proxy settings set in the browser it will work fine. As soon as I set the browser setting to access the Squid software I get the same error. I've included my squid config (which is unchanged from the default settings), maybe somebody better versed than myself can point out an obvious flaw. Everything else seem to work just fine, it's only FTP that's a problem.
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May 13, 2011
I want to configure squid server with SSL so that users send clear text username/password and also data in encrypted mode. i googled but all of the configuration is for reverse proxy not requests from users to proxy server in LAN for example.
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Oct 16, 2010
I just saw that my network is slowed so I watches the /var/log/squid/access.log where I get this line continuously....
[Code]....
I thought that someone running any script so I disconnect all my LAN connection (simply removed the local lan cable) but I saw the connections is going on....so I watch the processes on proxy server but nothing suspicious....So I change my static IP and the spamming stops (I say it is spam b'coz the IP 203.188.197.10 is of yahoomail.com ) but I when I am putting my OLD ip back the connection starts again......I want to put back my old static IP b'coz I have configured it for many services. Is there any spyware on my machine or someone configured my IP?
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Jan 11, 2010
let me know how to clear cache memory ( RHEL 5.1 ) as it consumes almost 100% physical memory.
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Feb 3, 2010
we found that if we use 'top' to show the memory usage of a server (SuSe Linux 10), we can get virtual memory usage as well as 'Resident memory' usage. For virtual mem or a particular process, it is around 1.1GB, which is large but for resident memory, it only consumes 300MB. Are there anyone who knows what the differences are? I would also like to know whether the difference (1.1GB - 300MB) = 800MB are actually available for use by other applications in the system.
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Mar 4, 2011
I am using squid on my fedora box as a proxy server.By default the iptables (Firewall) service is on.To allow web pages to my client machines i stop the iptable service.
#service iptables stop
By doing it client computers start browsing.kindly how can I add a rule so that without stoping firewall client compter work fine.my perver IP address is 10.1.80.10
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Jan 8, 2011
I have been setting up a vps I got out with bhost.net, with CentOS installed. I've been learning and have set up everying I need with the exception of ftp/sftp.
Using yum I installed vsftpd and ran into problems, thinking it was something I might of done I did a fresh install of CentOS and I still recieve the same problem on a fresh install so it is nothing I have done to the server.
The problem is when connecting via a sftp client I get an out of memory error. This error is listed in the putty faq ( url ) under A.7.5, there is a brief explaintion of the cure under A.7.6.
there is mention of a login script but I don't know where this is located. I'm a novice at Linux but by no means incompotent when it comes to computing.
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Dec 16, 2010
I run my linux server on the Fedora 11 x86_64 flavour of linux. It did have 1GB of DDR SDRAM PC2700 (Crucial) in the first DIMM slot. It worked fine, however i felt the need to add more RAM to the server. So I purchased 2Gb from Crucial 2 * 1Gb memory stick of DDR SDRAM PC2700 333 CL2.5. However when these are used the machine goes through grub begins booting and then hangs. Sometimes it goes through to the login screen where it hangs, othertimes it hangs after logging in. I have performed a memory test and the results come back fine. However if I just use a single stick of memory the server boots fine (Either stick of memory works).The Machhine is dual boot and my XP professional partition always boots fine
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Feb 7, 2011
Fedora 14 xfce
HP Mini 210
I am looking to buy some memory for my netbook. Currently I have 1 GB of DDR3 memory. However, the specification says that 2 GB of memory is the max. However, when I do the following it says that 4GB is the max:
[Code].....
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May 4, 2010
I have a query regarding top & virtual memory. When we run top it show VIRT (Virtual Mem), RES (Resident Mem) & SHR (Shared Memory). The total virtual memory of my machine is 4 GBs (2 GB RAM + 2 GB Swap), but still I am able to see a process showing 4000m virtual memory column. what it means, as its show VIRT Mem more than actual available VIRT memory
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Mar 2, 2009
For some reason, if I leave my Linux box running for several days, the swap space and RAM slowly fill up until my system is so slow that it takes around 15 seconds just to open a new tab if Firefox (Iceweasel, specifically). I have 512GB RAM and almost a gig of swap; how on earth does it fill up so much? Even if I close all my programs, there's still over 600MB swap used and all RAM is full. I've included a screenshot of 'top' running just about two minutes after I closed all my running programs.
(Before I closed it, I had only 71MB swap free.) I know that Linux is supposed to make good usage of RAM, but isn't this over the top? Is there a way to force it to use only required memory with no or little extras kept in RAM? Just thought I'd add in the fact that I'm running Xfce as opposed to KDE or GNOME in an attempt to have a smoother running system on my old hardware. Also, what's the "VIRT" column?
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Mar 15, 2011
When I ps -e, I see a whole bunch of processes, many more that when I ran Slackware.Is there a list of processess I can look at to see what they are and what ones I dont need, instead of googling each one and getting some cryptic explanation?
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Apr 26, 2011
Here is my query:
Squid document says that Squid accepts only HTTP requests but speaks FTP on the server side when FTP object are requested.
We call Squid HTTP and FTP caching proxy server. Does it also caches FTP contents? Is it possible to configure FTP clients to use Squid cache? When we make an FTP request to an FTP site via Squid will it be bypassed?
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Apr 21, 2011
I noticed Xorg consuming over 30% of my cpu cycles. Does anyone know what is going on here?
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Dec 22, 2010
I want to make a transparent squid proxy server in centos. The squid proxy version is 2.6 stable. I made a normal squid server but want to make it transparent so that users do not need to enter the proxy settings in web browser. Even i searched about this on google but not getting it properly.I have two lan cards on centos system. ETH1 used for LAN and ETH2 used for WAN. And in this squid.conf i written "http_port 172.16.31.1:3128 transparent" and i also added a rule in iptables which is "iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128" but still i have to enter proxy settings at client's web browser to use internet
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Sep 17, 2010
I would like to install and configure Transparent squid proxy on a gateway server ,but i dont have a local OR intranet DNS server.I am facing issues do that ,regard .My IP series is 192.168.1.1/24
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