General :: Filesystems - Totally Clear The Filesytem's Cache?

Aug 4, 2011

In a performance test, I want to bypass the influence of cache of linux system (including page cache/inode cache and so on). I have tried O_DIRECT flag, but it's turned out that direct I/O is still "enjoy" the effect of some cache.Is there a thorough way to close the effect of system cache?

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General :: Clear Bad Shortcuts From Gnome-do Cache?

Feb 11, 2010

I am using ubuntu and gnome-do and have in my gnome-do some bad shortcuts ( they even have a grey X icon ) that i cant figure out how to delete from the list. I thought gnome do has some cache but its been a while and they are still there :(

how to clear them from the list ?

Update: I deleted the ~/local/share/gnome-do folder and still no success

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Debian Configuration :: Clear DNS Cache ?

Jan 18, 2011

A friend has a website. the site has been moved to another server. I am inside of a private network.

Problem: when trying to reach his website, my browser keeps connecting to the old server which is on another continent

Windows machines have no problem with this. They connect to the new server without issues.

NOW what is hard to understand: even the PING utility is pinging the old server.

I tried these and none works:
- computer restart
- Clear private data in Iceweasel (has ntg to do with PING, but tried...)
- installed nscd and restarted the service
- modified /etc/resolv.conf to point to another nameserver than modified it back

At the same computer, if I reboot and load Windows, the browser has no problem connecting to the new server.

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Fedora :: F12 - How To Clear ABRT Cache

Apr 12, 2010

I can't find how to clear ABRT cache (other than to forcibly 'rm -rf /var/cache/abrt/'). How does one clear out the pile (which has grown to 1.2 GB here)?

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OpenSUSE :: How Clear Apache Cache ?

Sep 1, 2010

I'm getting a weird situation where even though I updated an image in a folder for a website in apache, it's still showing the old image. And yes, I checked it in multiple browsers and on diff. computers. (Apache is in a virtualbox OS)

Here's what I've done:
1. Checked it in firefox on the host, cleared cache, reloaded
2. Restarted apache
3. Checked it in konqueror for first time, still showing old version
4. Checked it in the actual file folder and it's correct there
5. Checked it for first time on virtual machine's OS in its firefox, and it shows the wrong/old image

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Ubuntu :: How To Clear OpenJDK Cache

Jul 23, 2010

I've been advised to "clear the java cache", and to do so under Windows, one would open the java control panel. Of course, I'm using OpenJDK, and not Java's java.

Can anyone tell me how I would clear the java cache?

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OpenSUSE :: How To Clear Cache - Files Are Adding Up

Jun 23, 2010

I just noticed that my hard drive is filling up with unnecessary files. what is the command to clean it up?

I've had to do this in Mandriva a while ago on my other pc. I'm running opensuse 11.2 KDE 64 bit

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Ubuntu Multimedia :: How To Clear Video Cache

Aug 22, 2010

Ubuntu 10.4 64-bit.I am almost certainly using the wrong term here, but if I knew for sure what I was looking for I probably would have managed to google it.In a fit of minor insanity, I used ffmpeg to convert all my video files I've impulse downloaded over the last decade or so to mp4, mostly because Easytag will happily tag them an assist in reorganizing them, but of course some videos didn't convert, either properly or at all due to issues with the original file.

But - every 108 -123 (Going by the filecount in my trash when it happens; I've wondered if the actual number is 127 or 128 but haven't gotten that definitive yet.) videos or so, totem dies, and so does every other video player I can use, VLC, mplayer, et al. For awhile I rebooted, then I figured out just logging out/in cleared the error, but I've yet to narrow down what exactly is causing it.Since it crosses all players I can only assume that there is some kind of cache that is getting filled up that is cleared when you logout, but after doing some digging it's nothing cleared by anything I've found like bitbleach.

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Ubuntu :: How To Clear The System Cache Memory

Feb 15, 2011

Ubuntu 10.10

How do I clear the System cache memory.

For the past few days , I am facing problem in opening websites (firefox & Chrome).

I have to restart the laptop and then access the web sites.

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Hardware :: How To Clear Swap Usage (Cache)

Aug 21, 2010

How to reduce the cached swap from the server?

[root@CMS-UAT ~]# free -m
total used free shared buffers cached
Mem: 7985 4146 3839 0 3 2300
-/+ buffers/cache: 1842 6143
Swap: 12479 4721 7758
[root@CMS-UAT ~]#

My server is showing swap usage of 4.7 GB.

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Server :: Clear /var/cache/apt/archives On My Dedicated ?

Feb 4, 2010

I have a dedicated server and I am having email issues etc (seemingly) because the /var directory is 97% full

I would like to know if it is safe to clear it and how to clear it (assuming it will not disrupt/kill server services to do so).

I have a 'Matrix' control panel so i can view the storage etc but it does not have an way of clearing the /Var directory.

I have Putty Access to root but do not know much about command line access.

I found a few threads but the information is not clear to me as there seems to be an assumption of (basic?) knowledge I don't yet have.

My linux support guru that usually does this kind of thing for me is away and not contactable and my server is grinding to a halt and unable to store/send email.

I have only a very basic understanding of command line but really need to get this sorted ASAP.

Is it possible and SAFE to delete files via FTP from the /var/cache/apt/archives?

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Ubuntu Servers :: How To Clear Postgresql Database Cache

Jan 16, 2010

I just wanna clear database(postgresql) cache so how to do that..and also adempiere cache...

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Debian :: Can't Clear Cache/install Packages In Musix 2.0?

Jan 10, 2010

My cache is full, and I've tried doing "apt-get clean" to no avail. I also can't find any apt.conf file in my system.Here is a screenshot of the error message that pops up when I open Synaptic Package Manager:PS: I'm pretty new to Linux, especially Debian; most of my Unix-like OS experience is with Mac OS X. My Musix installation is in a VMWare machine.

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Server :: Squid Automatic/scheduled Cache Clear?

Nov 9, 2009

is there any way to scheduled cache clear auomatically instead of manual in squid.

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Fedora :: Yum Clear Cache And RPM Update - Internal System Error

Aug 3, 2009

I just installed F9 and updated to F11 (fedora 11) and I updated the system because I couldn't get the media player working and then I installed all these packages for two days. I have tried yum clear cache and the rpm update. Here are some of the ones I tried:
rm -f /var/lib/rpm/__db*
yum update PackageKit
; yum clean all;

And this is the error:
Error Type: <type 'exceptions.TypeError'>
Error Value: 'NoneType' object is unsubscriptable
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2280, in <module>
main()
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2277, in main
backend.dispatcher(sys.argv[1:])
File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 600, in dispatcher
self.dispatch_command(args[0], args[1:])
File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 508, in dispatch_command self.get_updates(filters)
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1743, in get_updates self._check_init()
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1965, in _check_init self.yumbase.repos.doSetup()
File : /usr/lib/python2.5/site-packages/yum/repos.py, line 71, in doSetup self.ayum.plugins.run('postreposetup&apos
File : /usr/lib/python2.5/site-packages/yum/plugins.py, line 178, in run func(conduitcls(self, self.base, conf, **kwargs))
File : /usr/lib/yum-plugins/rpm-warm-cache.py, line 32, in postreposetup_hook
cmd = commands[0]

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Ubuntu :: Synaptic Stops Responding When Trying To Clear Cache Of Deb Install Packages?

Nov 30, 2010

My synaptic stops responding when I try to clear cache of old deb install packages

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Applications :: Overwrite File Contents And Clear Firefox Cache + All The Normal Functions Of A System Cleaner

Oct 22, 2010

since arch has started using python3, bleachbit is broken, so i am looking for a system cleaner to replace it. i need something that will overwrite file contents and clear firefox cache + the all the normal functions of a system cleaner.

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Server :: Clear Cache Memory ( RHEL 5.1 ) As It Consumes Almost 100% Physical Memory?

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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SUSE / Novell :: Clear Apache Cache Without Restarting Apache Server?

Feb 4, 2010

Any one have an idea How to clear apache cache without restarting apache server.

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General :: Difference Between Hardware Cache And Slab Cache?

Nov 22, 2010

I am reading slab allocator, it defines slab cache, i am quite confuse is it same as hardware cache?

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General :: When Type The Df Command See That /dev/hda1 As A Filesytem That Is Mounted At '/'(root). Is /dev/hda1 A Filesystem?

Mar 26, 2010

When i type the df command i see that /dev/hda1 as a filesytem that is mounted at '/'(root). Is /dev/hda1 a filesystem. I thought that it is a partition on my hard disk that contains the root file system.

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General :: How To Totally Back Up System OS

Jun 24, 2011

Our company had a vendor doing some data transformation work for us that we recently decided to take in house. They were good enough to transfer all their processes to a pc we gave them and it's running great. Only thing is that its a linux OS and I have no idea how to do anything other than what to click on to run programs.

Its OS version 2.6.34.8-68.fc13.i686.PAE. KDE SC version:4.5.5

I know that at the bottom left where there would be a windows button on a Windows PC there is a blue K button. That's ALL I know.

First thing I'd like to know is how to totally back up this system OS and all so that if something happens I can load it onto another PC. I'm pretty panicked because it IS an old pc it's on. Then, I'd like to know what is this exactly and how can I learn what I have here

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General :: One Command To Totally Reformat Box?

Jan 11, 2010

I want to start totally from scratch on Linux server I installed the other day. No dual boot, no personal files, etc... on it.

Fdisk -l shows the following:

Disk /dev/sda: 320g
255 heads, 63 sectors/track, 38913 cylanders
units = cylanders of 16065 *512 = 822...bytes

[code]....

All the info I have found has multiple steps, but in my situation is there just 1 easy command to do this? If not, can I just reinstall from CD and it will reformat and let me customize more? If I have to use the several steps to reformat, can you explicitly type out exact commands for me? I am completely new, have to learn all this, and all the referece books/materials kind of scatter the info around.

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General :: Filesystems On Dev Directory?

Dec 25, 2010

I want to know what file system there are for "/dev" directory??apparently different types was developed for managing devices on Linux.because I am a little confused about all file system on this directory.Another question is,which is file system sufficient for managing devices on Embedded Linux ?of course on our embedded system we do not have many pluggable device,so this directory can be static

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General :: Downloading Program For Pinter Totally Clueless

Mar 13, 2011

I got this printer HP Deskjest 1000 J110a and I have been trying to download their program for Linux Ubuntu 10.10 but I can't figure out what to do next.I am totally new to this. I have a ASUS Eee PC laptop and I don't have Windows because the trial ran out.

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General :: Sound Has Totally Gone On Dell Latitude Computer

Apr 7, 2011

A friend lent me their Ubuntu book but I can't understand it and could not find anything about the sound suddenly going from the speaker on Monday night. I went to Sony Ericsson's site to check something on my account and loud music suddenly started blaring out so I pressed the Fn button and End which muted it. However, I forgot to take it off before closing down for the night and as of Tuesday morning I have no sound. Would me leaving mute on all night have screwed something up or has it just suddenly gone? I am so upset as I cannot afford to get another laptop as not working and this is my last resort since my original Compaq one died.

I appreciate any "Helpful" solutions. Not in techy but layman's terms please as I won't understand. Also if you do reply, I am in the UK and also don't get notifications so I am not being rude if I can't get back to you quickly. I will be going to bed now.

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Fedora :: Error: Caching Enabled But No Local Cache Of //var/cache/yum/updates-newkey

Sep 24, 2009

I don't understand this error nor do I know how to solve the issue that is causing the error. Anyone care to comment?

Quote:

Error: Caching enabled but no local cache of //var/cache/yum/updates-newkey/filelists.sqlite.bz2 from updates-newkey

I know JohnVV. "Install a supported version of Fedora, like Fedora 11". This is on a box that has all 11 releases of Fedora installed. It's a toy and I like to play around with it.

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Software :: Redirecting APT Cache - Can Redirect Cache Of Apt To A Specified Folder Either On Command Line Or Via A Config Setting?

Jan 5, 2011

I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.

Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).

I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?

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General :: Restore A Backup On Different Filesystems?

Sep 30, 2010

I'm now using Ubuntu 10.04 with ext4 and for the second time in my life I experienced data loss (not for real: I got backups) and I'm assuming problems with the recent ext4 fs.

I want to restore all of my configurations (/etc and the like), data and home on reiserFS: is this possible? What to do in order to accomplish that?

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General :: Finding Alternative Filesystems For SSD?

Feb 14, 2011

I am tired of watching fsck check my filesystem when my eeepc 901 shuts down abruptly due to a crash. I know that with a journaling filesystem, I won't have to wait for a check. However, I am well aware of the poor I/O performance of the SSD, so I can imagine using a journaling filesystem being even more frustrating, since there will be constant writes to the journal? I will buy a new laptop without such a crummy ssd someday but, is there anything I can do now, on the software side of things?

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