Ubuntu :: How To Clear Down Apt-Xapian-Index Space
Nov 9, 2010
My system is giving me a low space on filesystem warning. When I run disk analyser, it seems that /var/lib/apt-xapian-index is using 97% of it!! That's 8.9GB. I found another post which explained that each time this package runs it builds a new index set, and how to make it only update new packages. I made that change, but this doesn't release the 8.9GB that I guess can just be cleared down somehow...
I hope it can be cleared down anyway. How to clear all this down? I do want the package to remain running on the system, I just want to clean it up and release all that space. I'm on Lucid, I also saw the warning on Jaunty but it went away after upgrade to Lucid... now it's happening again, I can't ignore and hope it goes away for ever!
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Jul 10, 2010
I was wondering if this Xapian can be removed safely? I use ubuntu 10.04 and many times i hear my CPU fan increase in speed--then i go into system monitor and i see Xapian is using alot of CPU resources---Everything else is sleeping.. I have 4 gigs of ram and 3.4 Gig CPU.
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Mar 4, 2010
i signed up for an online storage website because i want to clear up some harddrive space. the way they upload is java based and whenever i get to the upload page i get the message at the top of the screen that says "additional plugins are required to display all the media on this page." when i click on "install missing plugins" it tells me "no suitable plugins were found." obviously i need to manually install something, what should i install? i cant always understand the descriptions in synaptic.
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Aug 31, 2010
What can i do clear up some space?Is there any way of cleaning /tmp?
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Mar 13, 2016
Code: Select allmyusername@mycompname:~$ varCurl="abc def curl: ( xyz asdf"
myusername@mycompname:~$ expr index '$varCurl' "curl: ("
4
myusername@mycompname:~$ expr index "$varCurl" "curl: ("
3
myusername@mycompname:~$ echo $varCurl
abc def curl: ( xyz asdf
How to make sure that space is treated as space and string is not treated as array? (I expect value of 9 or 10, not 3 or 4).
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Jul 21, 2010
Closest analogy I can compare what I want to, is like the `sync` command, which writes out all stuff in the disk buffers, freeing the buffers.Instead of disk buffers, I want to 'clean out' my RAM and SWAP of any/all junk that's accumulated in there over the time my PC has been up. I've long wondered about this, but never asked, though I recall searching around several times..When I first boot it cold and log in, the memory usage bar on my desktop is near zero, and the swap is empty. But after a week or 2 or 3 or more of uptime, and with Firefox always running with a dozen tabs or so at any given time, I end up with all the memory full or 'filled with cached stuff', and the swap space is filled to capacity.Curiousity: I blame Firefox for leaking memory, but even if that's still the case today (historically it was) can this all be blamed on Firefox? Or what-all causes this, besides Firefox- just..Everything?
Here's current stats:
Code:
sasha@reactor: uptime
21:21:42 up 30 days, 10:07, 3 users, load average: 0.02, 0.05, 0.01
sasha@reactor: free
total used free shared buffers cached
[code]...
So, 3.8 of 4 Gib of RAM is occupied, and the 1 Gib swap space is jammed full 100%. This must slow things down to some degree, yes? I mean, the kernel does have to keep track of this, right?Of course closing all the applications doesn't make a difference (not an appreciable one anyhow) and the only way I have found to start fresh is to reboot.
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Jul 9, 2011
Just installed and started to use the suse11.4 two weeks ago when my Win7 broke down. Now I got a new Win7 recovery disc from my laptop manufacturer, and want to install a Win7 accompanying with the suse11.4.
My question is how to clear up a free space in HD to install win7? Currently, I have 3 partitions that are sda1, sda2 and sda3 with space 2G(swap), 20G(root) and 270G(home) respectively. I want to free up half space from sda3 to install Win7, how to do it without delete the data on it? One weird thing is that my HD totally is 320G, but when I installed SUSE, only 300G was usable and the other 20G is missing until now. The fdisk -l command info. is showed below:
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Apr 27, 2011
I upgraded an older system from jaunty 9.04 to karmic 9.10/ Following the upgrade, and about six hours of stable use, I ran the synaptic package manager, to pull in fvwm-crystal and a couple of other nits. Synaptic went into its usual tiring Rebuild Index while the resource hog update-apt-xapian ran away gleefully with the cpu pegged. for longer than I've ever seen it... about 15 minutes, and then the system crashed. and, I mean it crashed hard. I have not seen linux do this in years. Not just a seg fault, the whole machine just crashed (cpu, display, keyboard, the works). Restart and no problem, until I ran Synaptic (Rebuild Index. several minutes, crash).I played this game for a while; thinking the system might just might be overheating... let it cool down, and retried.same result. I tried running one last time, and this time pressed the reload (on Synaptic main panel) prior to the crash.it pulled in the repository updates and completed the Rebuild Index. (no crash)
I have run Synaptic several times since that. downloaded some goodies, and have had no further crashes (although, it does run Rebuild Index every time I start it.and update-apt-xapian pegs the cpu while this is going on. The question(s) I have are:
1) I was not aware that an apt these days can bring down the kernel (no panic, no logging, just down....) How is update-apt-xapian tied into the kernel that permits this vulnerability?
2) There appears (from searches) to be a problem with Synaptic or at least with xapian...?? What is going on with this resource pig..?
3) If I disable xapian and use sudo apt-get instead, instead of Synaptic, does this solve this resource problem?
4) Is there another forum area where this might be addressed besides general?
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Jan 4, 2010
Logical Memory Space of 4GB is divided in to 3GB User Space and 1GB Kernel Space. Always. Correct?
1. How can we change it? (just changing value of PAGE_OFFSET is okay?)
2. If system have only 256MB of memory (embedded system) and suppose Kernel Modules eat away all the memory during boot. User space will be left will no memory. Is this case possible?
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Mar 6, 2010
I have linux and windowsxp on one machine. I have only 3gigs free on the windowxp machine and 20gigs free on the linux machine. I want to transfer space from the linux box to the windows machine.Is this possible and what steps would I need to follow to do this?
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May 25, 2010
i used gddrescure to clone an 80gb harddrive and this is the result ROFL.i guess you can only do this making sure the target drive is the same size, you see i didnt know lol so..i now have THIS problem.can anyone tell me how to turn my unallocated space into a usable 'free' space? i could play with gparted right now but i dont wanna do anything wrong, so if theres anyone who can tell me how to do this.
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Jul 22, 2010
i made space by shrinking my window partition and so i have unallocated and would like to add to sda2 to have more space. Check out this pic. How can i do this?
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Apr 23, 2011
I installed Ubuntu 10.10 with wubi and i have been enjoying my Ubuntu experience a lot. I installed quite a bit of programs and spent a couple hours customizing my machine. The problem is im running out of disc space. Any ideas on how i can add more space. I have gparted but i dont know where to move the free space to because wubi installed it.
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Mar 20, 2010
my home partition is an extended one, and when i want to create an unallocated space the space will stay in that extended partition. but there is also an 7 gb unallocated space which i want to merge with the other unallocated space. I also cannot extend that partition over that 7 gb. how can i overcome that problem?
i m also uploading a screenshot of gparted.[URL]..
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Dec 13, 2010
I am developing a I2C CDROM client driver. The CDROM firmware supports TOC information read through a I2C command. It sends the TOC information in burst ( Interrupts a GPIO pin when it is ready ) and my CPU does a I2C read to read the TOC. When the CDROM firmware finishes sending the last data burst , it informs my CPU that it is done with the TOC, by a flag in the last data burst. I would like to know, which is the most efficinet way I can send these TOC information to userspace?
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Sep 22, 2009
I am writing device driver in which i have to call callback function from kernel space, which are saving my data. But the callback functions are in userspace. While accessing them i am getting segmentation fault.
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Jul 7, 2009
I wanna write a file in kernel space but from my searching I can to know that instead of writeing file in kernel space ,I can write data to user space by copy_to_user space.
But link is missing ...I dont know how will my user space will access kernel space means my function in kernel space which will do copy_to_user /....How my user space function will call my kernel level function ..
Can any one of you provide me with some example file which are doing this .I know every char driver is using it ...but i could not trace back how user level function is accessing it ...i m confused between user space and kernel space.
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Jan 31, 2010
Today I was installing a lot of software since I'm just setting up my Slackware system again after a fresh install, and I realized that my root partition has very little space left.
Here is the output of df -h:
Code:
As you can see, I have a 20G (19G here for some reason) root partition, 8G /var, and 86G of /home. I thought this would be plenty since many recent recommendations for / are 10-15G. Now, though, 17G are used up for some reason! How is this possible? I thought a full slackware install only had about 4G of software! I don't have any music or movies or any crazy huge files that I know of, and those would be in my /home directory anyway. Is there any way I can see which files are taking up all this space?
If it's necessary to allocate more space to my / partition, is it still possible to boot up a GParted live Cd, shrink /home a bit, move some partitions to the right, and expand my root partition? I would REALLY prefer I don't have to reinstall since I just spent a ton of time setting up my system again, but if worst comes to worst ... :'-(
In case you're curious, here's my /etc/fstab:
Code:
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Jul 14, 2009
How to use execv from kernel space to call a user space program writtenfor socket prog.
I tried to write code for socket in kernel but its not working.
Socket code in kernel is also needed.
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Jun 7, 2010
I was trying to install Fedora 13, on to my laptop. I have 30 GB of unallocated space in extended partition. When trying to install Fedora 13, I got stuck, as the installer says that there is no free space for installation.can convert the unallocated space into free space.
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Aug 25, 2009
OS: RHEL AS 5 64-bit
HDD:300 GB Hardware mirror (HP blade bl460c)
While installing OS, in partition window after OS file system structure I've left 277 GB. But after installation it shows Size - 255GB and available disk space is 242 GB.
Isn't it weired? How can I use the total amount of space in Linux? I need the whole 277GB exactly. What should be my workaround?
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Oct 14, 2009
I have a list of files in a directory which starts with - or have space.
I need to copy them back without the space or -?
linux1[sim]% ls linux1[sim]% cp ./-* ./*
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Dec 30, 2010
I have red hat linux server and it has mysql installed whenever i write on terminal command mysql -u root it shows error "ERROR 2002 (HY000): can't connect to local MYSQL server through '/var/lib/mysql/mysql.sock (111) "
And another problem is that it is showing 0 byte free space istaed of freeing the space. it may seems that both problems are dependent on each other.
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Oct 17, 2010
I have a big partition ext3 and System Monitor show me that there are 14Gb of Free space but only 4Gb of Available space.
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Jun 21, 2010
In a 32-bit system, max memory addressable is 4GB. Now Linux kernel does memory mapping division of 1GB for kernel address space and 3GB for user address space. That means 4GB of virtual address space is divided between kernel (1GB) and user (3GB).
Q1. All virtual mapping utilizes the available physical RAM without any division? I mean to say that if RAM is 512MB then a page in kernel space can lie any where RAM (leave aside old PCI dma accesses)? (How this fits to fact that kernel memory is non-pageble)
Q2. If a process is created in user space, it has visibility 4GB address space or 3GB address space?
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Jul 5, 2011
My system is dual boot with win7 and ubuntu. I have free space of around 10 gb. I want to add this free space to my ubuntu drive. How can i do that?
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Jul 21, 2011
I have the following requirement in my module. The driver gets some data from the external device. After getting 1MB of data it has to send it to the user space application. What is the best thing to implement for this in driver.? Is it ok to implement like, after getting data, the driver will send a signal to the user space application. Then the user space application sends an ioctl to read the data. Is there any alternate, that the driver directly sends the data without the user space application asks for it.?
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Jan 1, 2010
I recently did a very stupid thing:
Code:
sudo rm -f /var/log Now I cannot update or upgrade any package (I know there are updates waiting but Update Manager doesn't show any packages to download). How can I rebuild the index of packages and its versions in /var/log/apt ?
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Jan 13, 2010
I recently restarted my Apache server to change the max upload from 5mb to 25mb. Once Apache restarted I tryed to go to my website via url www.website.com and a blank page with this source code:
<html>
<body bgcolor="#FFFFFF">
</body>
</html>
I also have two demo websites that I am running and when I go to there url's www.website.com/demosite apache will serve up the index.php
I didn't change anything but the max_upload in the apache2.conf and restarted.
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Feb 18, 2010
Does anyone know a good script that would automatically generate an index.html file for an FTP server?
I just uploaded quite a bit of my music and files to my FTP server, and I really dont feel like having to go through and manually add links to a page so that I could browse them from anywhere.
I was looking in to using a script originally written for dropbox- here: http://www.webupd8.org/2010/02/share...lder-with.html
But it doesnt work on the remote server. I could only create the index for files residing on the drive here.
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