I have a box currently setup to share files on my network and for the most part its great. However when multiple people request files my 1gb speeds drop. I have extra 1gb NIC's to use but have no clue on how to spread the load of transfering files between multiple nics. Is this even possible? or does this happen automagically?
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I'm trying to work with a project manager and some hardware guys and all of us are trying to get a grasp on the UEC.
1. Can a VM span multiple nodes?
2. If a website scales beyond 100% CPU on a node, does it automatically spill over to another node and start using processing power there?
3. Do I have to rewrite the code of my web app (such as WordPress) so that it works in a private cloud?
4. Does KVM support virtual memory such that when I run out of RAM it uses paging?
5. How is UEC any different than me bringing up several servers with several VMs inside, and then moving VMs around as I need? Is it really a cloud where the VMs exist in a cloud, not necessarily a node?
6. If I power off a node while it's hot, how can I assure myself that the data will be okay?
7. Do I want to use SCSI attached RAID, or NAS, or NFS? We're simply trying to host thousands of blogs and LAMP sites in a way that we can handle spike loads.
8. Do I attach the disk volumes to the cluster controller and then run a command such that the nodes can mount those virtual volumes?
9. Do I need to run another command on the VMs to mount volumes that the nodes can see?
10. What is the role of the storage controller and how is it separate from the cluster controller?
11. How many systems, minimum, do we need to get this tested out?
12. For testing purposes, can I install UEC on an Intel P4 server and then a node on Intel P3 server -- even with some limitations?
13. Let's imagine I have 5 node servers, and one catches fire and is a total loss. Can I get those VMs back and get that data back? What would have to be the proper config to make that happen?
So, at the moment I have a 7TB LVM with 1 group and one logical volume. In all honesty I don't back up this information. It is filled with data that I can "afford" to lose, but... would rather not. How do LVMs fail? If I lose a 1.5TB drive that is part of the LVM does that mean at most I could lose 1.5TB of data? Or can files span more than one drive? if so, would it just be one file what would span two drives? or could there be many files that span multiple drives drives? Essentially. I'm just curious, in a general, in a high level sense about LVM safety. What are the risks that are involved?
Edit: what happens if I boot up the computer with a drive missing from the lvm? Is there a first primary drive?
I have two 1TB drives I want to span for the storage area of mythtv. Not for swap, system or anything else, just storage of myth's files.
My mythserver died and I'm rebuilding from scratch, in a previous life I'd used mdadm and a software raid 0. But this was always a bit of a pita and I'm told it's not necssary. What's the most efficient method of using two drives and could someone point me towards a how to on the subject?
some users [ possibly ATI card owners running fglrx default ubuntu driver ] have issues having compiz enabled and trying to change the mouse pointer to a larger size. It actually doesn't get resized at all, expect when moved over Firefox and OpenOffice.I was fiddling in trying to get a workaround for this when suddenly Nautilus started to crash and respawn in an infinite loop. Everything then started to fail. gnome-terminal wouldn't open, xterm wouldn't open, menus wouldn't respond. Etc.The entire GNOME desktop was inoperable.
Logging out and choosing Fluxbox and KDE didn't help. I was sent right back to the GDM login screen. Hmm... seems not related entirely to GNOME... if it all.From a terminal, I could see constant crashes, segfaults on libc6-2.11.1..While at it, I logged on another account (my wife's) and everything was perfectly FINE, with no issues at all. Creating them another account and initializing, it also didn't happen any segfaults. However, everytime I logged in my own account, everything would happen again... nautilus respawning, no terminal, nothing, not even logout would work. Either I hit a MAJOR BUG in libc6 current ubuntu compile, or a setting file inside my home dir got really corrupted and screwed up. It was very frustrating, because this bug was a show stopper. For those who concern, my mobo is an Asus M3A78-EM running a ATI HD 3200 IGP, and I have ubuntu-default fglrx running.
I had run memtest+ overnight and no errors whatsoever. The fact that this was an "account specific" issue deems that there is no hardware fault. I had to migrate my old account to a newly created account, it was hard work because of my 100GB files. Setting ownership in each of them, etc. Everything is OK now, but I really wished to know what dimmed out my bright Lucid Lynx experience yesterday. And I just hope this doesn't happen again.
Can I somehow span the gnome panel to my other monitor, or to add a new gnome-panel to my second monitor?
View 1 Replies View RelatedI am using SQLite as my database for some portable cross platform applications I am working on with REALBasic as my IDE. I have an old Sybase 8.0 database that I can access via Microsoft Access and thereby extract the data I need from each table.
Now I know I can create .csv files from each table and load them into SQLite using the import tool, but then I can't define the primary key and other field attributes. So the other option is to load each file via SQL.
Now with most SQL editors I can create multiple queries and they will run just fine. But I can't seem to do that with the SQLite interfaces. I can paste multiple queries but I can only run one at a time. And by that I mean I have to click run.
Ummm that's not acceptable since my biggest table contains over 600,000 records. I have the queries all written, that was easy using a simple interface I wrote in Access.
Code:
INSERT INTO tblMeters(recordId,meterId,meterName,meterSerNum,registerSerNum,mxuSerNum,meterType,manufacture,meterModel,readType,groupId,multiplier,rollover,vendorId,xfrmerCode,bldgCode,CATEGORY,energyType,unitOfMeasure,location,access,comments,dateInstalled,dateCalibrate,pipeSizeIn,pipeSizeOut,elecMeterSpecs)
[Code]...
So is there another method I can use? I can't seem to find anything relating to my particular question at the SQLite web site
Am using 10.04 and quite happy with the way it is working. my nephew and my mother have also switched to ubuntu.
To save on internet usage and load on the ubuntu servers, can i download upgrade files in one computer and then upgrade all systems?
Is there any way to load up multiple linux flavors (such as ubuntu and its variations, backtrack, dsl, desbian,ect..) on to a USB drive with persistence?
View 2 Replies View RelatedHow can I make a window span over both monitors? I have the monitors configured using the KDE monitor setting tool. I need specifically full-screen (for presentation purposes) or at least a maximized window. Kwin insists on locking the window on one desktop.interestingly it really is Kwin preventing me to do this. If I get rid of KDE and just launch a plain X session, the window maximizes correctly.
View 1 Replies View RelatedI recently read about recommendations for increasing the life span of optical media as follows:-
1) storage at constant temperature in the range 41F-68F with relative humidity 30%-50%
2) no exposure to direct sunlight
3) marking only with water soluble markers
How water soluble marker becomes a factor in the life span of an optical media ?
I am using opensuse 11.3 64 Bit Gnome. The problem is the network manager & the bluetooth icon takes unnecessarily long time to load (2-3mins) & until it loads I cannot connect to the internet.
View 1 Replies View RelatedI have a Fedora 12 system that I am trying to configure with 3 IP addresses on one NIC card. I created scripts for each of the connections I want in /etc/sysconfig/network-scripts/ and they are called ifcfg-eth0, ifcfg-eth0:1, ifcfg-eth0:2. If I run /sbin/services network restart it configures everything as I would like. When I restart the computer the only device configured is eth0 and it is set to DHCP. If I run the script again everything works. What am I missing to make this change persistent?
View 2 Replies View RelatedBased on much internet searching, I've found that I was/am not the only one struggling to get Fedora 10 to span the display across a laptop screen and an external monitor. So what I have here are instructions to do so:
1) Fedora 10 does not (by default) use an xorg.conf file to configure the display. So type the following command into the command line: yum install system-config-display
2) Go to the menu bar and navigate to System>Administration>Display. I left all the display settings as they were and hit OK (repeat this step twice to make an xorg.conf backup). This will generate the xorg.conf and back up files in the directory: /etc/X11/
3) Now we need to see what size virtual screen you need. Type the following command into the command line (without the quotes): "xrandr --output VGA --auto --right-of LVDS" It will tell you that you are asking for a certain size screen. Write those numbers down. I have a 1600x1200 external monitor so my number is 2624x1200 (1600+1024 x 1200).
4) Change directories to /etc/X11 and type (without the quotes): "sudo gedit xorg.conf" Scroll down to where the device section is. Mine looks like this:
Section "Device"
Identifier "Videocard0"
Driver "intel"
EndSection
Some videocards need to turn 3d acceleration off in order for dual screens to work. It is important that you turn off desktop effects if you turn off 3d acceleration!!! So under the driver line add the line (with quotes): Option "NoAccel" "true" Mine looks like this:
[Code]....
Scroll down to where the screen section is, and then find the display subsection. It should look something like this:
[Code]....
I am having a Dell ST2410 LCD and a laptop IBM.I want to span my desktop so that some portion is on laptop and some on external monitor. I tried xdmx but it did not worked.
View 6 Replies View RelatedI am making online Myproject using java in which you can make your porject online or with your team, my problem is that when i drag one component from one page it disappear from another frame & i am unable to solve the problem that if the user don't have install java than myproject in not useable i am giving a span sort of code of my project:
[code]...
I upgraded to FC10 from FC8 and my Gnome-panel no longer spans both screens in my dual monitor configuration. This worked fine in FC8, and I can't seem to figure out how to make this config work in FC10.
I've tried Xinerama and Twinview, and various configurations in xorg.conf, and cannot seem to make it happen.
How to make both my panels (top and bottom) go across both screens?
My requirement is to route ssh sessions from a single head node to multiple slave nodes. So what i want is, for a client there is just one point of entry (master/head node) to ssh into, it evaluates the load on the slave nodes connected on to internal network and routes the ssh session, kind of a ssh load balancer. Do you have any idea what open source solution i can apply for my problem?
I have tried using LVS piranha, it works well for http and https load balancing but not for ssh load balancing.
when it boots it doesn't ask me for my password (not the one to WiFi network, but the one to 'default key base') and because of that I can't connect to my WiFi network. The network itself is working fine. So i restart my computer (sometimes I have to restart it 15-20 times) and finally Ubuntu asks me for my password I type it in and everything works fine. what should I do with this?
View 1 Replies View RelatedI just installed 11.04 on my Samsung n130.
It does connect to the router, but when I open a page it does not load it...
It works ok with the ethernet cable.
Edit: after restoring from sleeping mode, it does not see any wireless network, I have to reboot.
I'm attempting to set up SGE 6.1 to do load sharing on my network. I am becoming quite confused though with the installation and configuration. I've installed the Master and Exception host on the main server and all services are started. I'm attempting to install a second Exception server now which is causing some of the confusion. Before installing an execution host, you first need to have installed the master server as described in How to Install the Master Host.
Do I do this even on the computers that aren't masters? I'll be setting up Grid on up to 10 computers, does this mean I have to go through the installation process 20 times(1 install of master and execution per computer)? Classic or Berkeley Spooling? By the looks of it Berkeley is the way to go as it is faster than Classic. This will require me to install more software, correct?
If there is a full, non-terribly written guide somewhere I would love to see one. I've been using the ones from Sun but they don't go into detail on most things that could use it.
this is with both network manager and WICD, a problem i've had since i got ubuntu - multiple wipes and reinstalls the wifi is supported out of the box, the problem i've randomly run into since installing is, it will randomly stop detecting networks "no networks detected"
i've noticed over time as this as been happening, that it usually happens whenever there is a high load - multiple videos going on multiple tabs, videos queued up etc. its never happened during regular browsing - theres always a lot going on when it happens, almost like it collapses. the only way to fix this, is to quit the manager - shut off the computer (restarting doesnt work) and then it comes back after
I tried Ubuntu Network version on a USB stick on my Netbook Samsung NF210 with 2GB RAM but this does not seem to be a viable way forward to me. Ubuntu on USB stick seems very slow to load. When resuming seemed to throw up errors. Resuming from Windows takes 3 seconds. I am reluctant to dual boot my netbook with Ubuntu after my experiences with my spare laptop. Is there a safe way to install Ubuntu on a netbook to dual boot with Windows Starter? how I get Ubuntu to work with a 'Three' Mobile dongle?
View 3 Replies View RelatedI've got a co-worker who is trying to connect multiple devices to his wireless router - Xbox, Wii, TV, Dishnetwork box, etc. Not all of the devices are wireless however. He's had several thoughts on how to get this done and I know very little about this kind of thing so I thought I'd ask some of you.
His first thought was to buy a multi port bridge, but he doesn't like any of the ones he's seen so far.The other thought was to connect all of the devices to a switch and then use a single bridge, but he isn't sure if this would work.
I am total newby in Ubuntu 10.04. I have just installed it in my office where I have two networks card one connect to a router giving the internet access and the other connected to the windows based work network providing access to the work network sources. In XP everything works fine as I can keep both connections alive and have the results I want.
However although I don't know how to do it in Ubuntu 10.04. Till now I have setup the first connection directly to my router and I have internet access but I cannot set the other one. Another question is how I can force ubuntu to use the router connection as the default one when I log in.
I have more than 60 ubuntu systems in my network. I want to copy files from one system to other ubuntu systems. All IP addresses are listed in a text file. So what command can I use to complete the task?
View 6 Replies View RelatedI have a problem where multiple interfaces in my network manager have the same name. This means that I am unable to have different settings for each interface. Here is my setup:
Ubuntu 10.04 LTS
uname -a: Linux muon 2.6.32-30-generic #59-Ubuntu SMP Tue Mar 1 21:30:21 UTC 2011 i686 GNU/Linux
Adapter 1: 02:00.0 Ethernet controller: Intel Corporation 82573E Gigabit Ethernet Controller (Copper) (rev 03)
Adapter 2: HTC Desire tethered via USB. When I start from scratch, with no remembered networks in the network manager, the Ethernet is shown as "Auto Ethernet". When I then connect the HTC Desire, the new network is shown in the network manager also as "Auto Ethernet". Previously, when I right clicked on the network manager and selected "Edit Connections", there were multiple "Auto Ethernet" entries under the wired tab.
Now (and I do not know what changed, sorry), I only see one entry. When I edit this entry (say, add a route), then the route is added for both network interfaces. This used to still work, so I was not worried about the name clash, but now it is causing problems so I need to have a different name for each network interface.
Ever since switching to openSUSE 11.1, I have been having problems with certain websites (using the version of Firefox that came with openSUSE 11.1). Some website's CSS code won't load until repeated reloads - for example, wachovia.com. I'll visit the website and it will be all distorted because the stylesheets did not load, and I will have to refresh a number of times before it becomes usable. Other website's images won't load until multiple refreshes, like facebook.
Is this an openSUSE issue? An openSUSE interaction with Firefox issue? I've never had this problem on XP or Ubuntu.
Have a domain registered on a public ip. The domain server for the domain is on the same local network as the web server that uses the domain. The web server naturally has a local and public ip address.
The problem is that whenever I try to access the domain from my local network the lookup for the domain fails, as it cannot find the server from the local network. What's the most painless solution to this problem?
TL;DR: need for my domain to be accessible from both my local network and the outside world, now it's only from the outside which is a problem.
I have 2 openSuse 11.1 servers. both of this servers serve a static web site. i want to Build A Network Load Balancing Cluster? how i can do this?
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