Virtual Machine Applications
The virtual machine runs as a process in an application window, similar to any other application, on the operating system of the physical machine. Key files that make up a virtual machine include a log file, NVRAM setting file, virtual disk file and configuration file. Advantages of virtual machines. Presently, VirtualBox runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7, Windows 8, Windows 10), DOS/Windows 3.x, Linux (2.4, 2.6, 3.x and 4.x), Solaris and OpenSolaris, OS/2, and OpenBSD. Click the Virtual Applications Application tab. The tab lists any Virtualized Applications. Those already assigned to the VM are marked with a filled checkbox. If you are changing the Virtual Application assignments from a virtual machine default, Group, or User-level override to another of these options, you must first select which override you are selecting using the drop down at the upper. Run any app on any cloud on any device with a digital foundation built on VMware solutions for modern apps, multi-cloud, digital workspace, security & networking.
Windows Virtual Machine Applications
Virtual Machine Applications
Virtual Machine Applications For Windows
Virtual Machine Download Free
Best Vm For Windows 10 This is an outdated version of the HTCondor Manual. You can find current documentation at http://htcondor.org/manual .
Next: 2.12 Time Scheduling for Up: 2. Users' Manual Previous: 2.10 DAGMan Applications Contents Index
Subsections
2.11.1 The Submit Description File
2.11.3 Disk Images
The vm universe facilitates a Condor jobthat matches and then lands a disk image on an execute machinewithin a Condor pool.This disk image is intended to be a virtual machine.In this manner, the virtual machine is the job to be executed.
This section describes this type of Condor job.See section 3.3.29for details of configuration variables. Windows Virtual Machine Applications
2.11.1 The Submit Description File
Different than all other universe jobs,the vm universe job specifies a disk image,not an executable.Therefore, the submit commands input , output ,and error do not apply.If specified, condor_submit rejects the job with an error.The executable command changes definition within a vm universe job.It no longer specifies an executable file, but insteadprovides a string that identifies the job for tools suchas condor_q .Other commands specific to the type of virtual machine softwareidentify the disk image.
VMware, Xen, and KVM virtual machine software are supported.As these differ from each other, the submit description filespecifies one oforor
The job is required to specify its memory needs for the disk image with vm_memory ,which is given in Mbytes.Condor uses this number to assure a match with a machinethat can provide the needed memory space.
Virtual machine networking is enabled with the commandAnd, when networking is enabled, a definition of vm_networking_type as bridge matches the job only with a machine that is configured to usebridge networking.A definition of vm_networking_type as nat matches the job only with a machine that is configured to useNAT networking.When no definition of vm_networking_type is given,Condor maymatch the job with a machine that enables networking,and further, the choice of bridge or NAT networkingis determined by the machine's configuration.
Modified disk images are transferred back to the machine from whichthe job was submitted as the vm universe job completes.Job completion for a vm universe job occurs when the virtual machine is shut down, and Condor notices (as the result of a periodic check on the state of the virtual machine).Should the job not want any files transferred back (modified or not),for example because the job explicitly transferred its own files,the submit command to prevent the transfer is
The required disk image must be identified for a virtual machine.This vm_disk command specifies a list of comma-separated files.Each disk file is specified by colon-separated fields.The first field is the path and file name of the disk file.The second field specifies the device.The third field specifies permissions, and the optional fourth specifies the format.Here is an example that identifies a single file:
Setting values in the submit description file for some commandshave consequences for the virtual machine description file.These commands are Mojang official store .
vm_memory
vm_macaddr
vm_networking
vm_networking_type
vm_disk For VMware virtual machines,setting values for these commands causes Condor to modify the .vmx file, overwriting existing values.For KVM and Xen virtual machines,Condor uses these values when it produces the description file.
For Xen and KVM jobs, if any files need to be transferred from the submit machineto the machine where the vm universe job will execute, Condor must be explicitly told to do so with the standard file transfer attributes:Any and all needed files on a system without a shared filesystem (between the submit machine and the machine where thejob will execute) must be listed.
Further commands specify information that is specific to thevirtual machine type targeted.
2.11.1.1 VMware-Specific Submit Commands
Specific to VMware, the submit description file command vmware_dir gives the path and directory(on the machine from which the job is submitted)to where VMware-specific files and applications reside.One example of a VMware-specific application is the VMDK files,which form a virtual hard drive (disk image) for the virtual machine.VMX files containing the primary configuration for the virtualmachine would also be in this directory.
Call bonnie from five nights at freddys. Condor must be told whether or not the contents of the vmware_dir directory must be transferred to the machine where the job isto be executed.This required information is given with the submit command vmware_should_transfer_files .With a value of True ,Condor does transfer the contents of the directory.With a value of False ,Condor does not transfer the contents of the directory,and instead presumes that access to this directory isavailable through a shared file system.
By default, Condor uses a snapshot disk for new and modified files.They may also be utilized for checkpoints.The snapshot disk is initially quite small,growing only as new files are created or files are modified.When vmware_should_transfer_files is True ,a job may specify that a snapshot disk is not to beused with the commandIn this case, Condor will utilize original disk files in producingcheckpoints. Note that condor_submit issues an error message and does notsubmit the job if both vmware_should_transfer_files and vmware_snapshot_disk are False .
Note that if snapshot disks are requested and file transfer is notbeing used, the vmware_dir Five nights at freddys steam . setting given in the submit description fileshould not contain any symbolic link path components.This is to work around the issue discussedin the FAQ entry in section 7.3.
Here is a sample submit description file for a VMware virtual machine:This sample uses the vmware_dir command to identifythe location of the disk image to be executed as a Condor job.The contents of this directory are transferred to the machine assignedto execute the Condor job.
2.11.1.2 Xen-Specific Submit Commands
A Xen vm universe job requires specification of theguest kernel. The xen_kernel command accomplishes this, utilizing one of the following definitions.
xen_kernel = included implies that the kernel is to be found in disk image given by the definition of the single file specified in vm_disk .
xen_kernel = path-to-kernel gives a full path and file name of the required kernel. If this kernel must be transferred to machine on which the vm universe job will execute, it must also be included in the xen_transfer_files command.
This form of the xen_kernel command also requires further definition of the xen_root command. xen_root defines the device containing files needed by root .
2.11.2 Checkpoints
Creating a checkpoint is straightforward for a virtual machine,as a checkpoint is a set of files that representa snapshot of both disk image and memory.The checkpoint is created and all files are transferred backto the $(SPOOL) directory on the machine from whichthe job was submitted.The submit command to create checkpoints isWithout this command, no checkpoints are created (by default).With the command, a checkpoint is created any time the vm universe jobs is evicted from the machine upon which it is executing.This occurs as a result of the machine configuration indicatingthat it will no longer execute this job.
vm universe jobs can not use a checkpoint server.
Periodic creation of checkpoints is not supported at this time.
Enabling both networking and checkpointing for a vm universe job can cause networking problems when the job restarts,particularly if the job migrates to a different machine. condor_submit will normally reject such jobs.To enable both, then add the command
Take care with respect to the use of network connections withinthe virtual machine and their interaction with checkpoints.Open network connections at the time of the checkpoint will likelybe lost when the checkpoint is subsequently used to resume executionof the virtual machine.This occurs whether or not the execution resumeson the same machine or a different one within the Condor pool.
2.11.3 Disk Images
2.11.3.1 VMware on Windows and Linux
Following the platform-specificguest OS installation instructions found athttp://partnerweb.vmware.com/GOSIG/home.html,creates a VMware disk image.
2.11.3.2 Xen and KVM While the following web page contains instructions specific toFedora on how to create a virtual guest image,it should provide a good starting point for other platforms as well.
2.11.4 Job Completion in the vm Universe
Job completion for a vm universe job occurs when the virtual machine is shut down, and Condor notices (as the result of a periodic check on the state of the virtual machine).This is different from jobs executed under the environment of other universes.
Shut down of a virtual machine occurs from within the virtualmachine environment.A script, executed with the proper authorization level,is the likely source of the shut down commands. Virtual Machine Applications
Under a Windows 2000, Windows XP, or Vista virtual machine,an administrator issues the command
Under a Linux virtual machine,the root user executesThe command /sbin/halt will not completelyshut down some Linux distributions, and insteadcauses the job to hang.
Since the successful completion of the vm universe jobrequires the successful shut down of the virtual machine,it is good advice to try the shut down procedure outside ofCondor, before a vm universe job is submitted.
Next: 2.12 Time Scheduling for Virtual Machine Applications For Windows Up: Virtual Machine Download Free 2. Users' Manual Previous: 2.10 DAGMan Applications Contents Best Vm For Windows 10 Index htcondor-admin@cs.wisc.edu
Windows Virtual Machine Applications
Virtual Machine Applications
Virtual Machine Applications For Windows
Virtual Machine Download Free
Best Vm For Windows 10 This is an outdated version of the HTCondor Manual. You can find current documentation at http://htcondor.org/manual .
Next: 2.12 Time Scheduling for Up: 2. Users' Manual Previous: 2.10 DAGMan Applications Contents Index
Subsections
2.11.1 The Submit Description File
2.11.3 Disk Images
The vm universe facilitates a Condor jobthat matches and then lands a disk image on an execute machinewithin a Condor pool.This disk image is intended to be a virtual machine.In this manner, the virtual machine is the job to be executed.
This section describes this type of Condor job.See section 3.3.29for details of configuration variables. Windows Virtual Machine Applications
2.11.1 The Submit Description File
Different than all other universe jobs,the vm universe job specifies a disk image,not an executable.Therefore, the submit commands input , output ,and error do not apply.If specified, condor_submit rejects the job with an error.The executable command changes definition within a vm universe job.It no longer specifies an executable file, but insteadprovides a string that identifies the job for tools suchas condor_q .Other commands specific to the type of virtual machine softwareidentify the disk image.
VMware, Xen, and KVM virtual machine software are supported.As these differ from each other, the submit description filespecifies one oforor
The job is required to specify its memory needs for the disk image with vm_memory ,which is given in Mbytes.Condor uses this number to assure a match with a machinethat can provide the needed memory space.
Virtual machine networking is enabled with the commandAnd, when networking is enabled, a definition of vm_networking_type as bridge matches the job only with a machine that is configured to usebridge networking.A definition of vm_networking_type as nat matches the job only with a machine that is configured to useNAT networking.When no definition of vm_networking_type is given,Condor maymatch the job with a machine that enables networking,and further, the choice of bridge or NAT networkingis determined by the machine's configuration.
Modified disk images are transferred back to the machine from whichthe job was submitted as the vm universe job completes.Job completion for a vm universe job occurs when the virtual machine is shut down, and Condor notices (as the result of a periodic check on the state of the virtual machine).Should the job not want any files transferred back (modified or not),for example because the job explicitly transferred its own files,the submit command to prevent the transfer is
The required disk image must be identified for a virtual machine.This vm_disk command specifies a list of comma-separated files.Each disk file is specified by colon-separated fields.The first field is the path and file name of the disk file.The second field specifies the device.The third field specifies permissions, and the optional fourth specifies the format.Here is an example that identifies a single file:
Setting values in the submit description file for some commandshave consequences for the virtual machine description file.These commands are Mojang official store .
vm_memory
vm_macaddr
vm_networking
vm_networking_type
vm_disk For VMware virtual machines,setting values for these commands causes Condor to modify the .vmx file, overwriting existing values.For KVM and Xen virtual machines,Condor uses these values when it produces the description file.
For Xen and KVM jobs, if any files need to be transferred from the submit machineto the machine where the vm universe job will execute, Condor must be explicitly told to do so with the standard file transfer attributes:Any and all needed files on a system without a shared filesystem (between the submit machine and the machine where thejob will execute) must be listed.
Further commands specify information that is specific to thevirtual machine type targeted.
2.11.1.1 VMware-Specific Submit Commands
Specific to VMware, the submit description file command vmware_dir gives the path and directory(on the machine from which the job is submitted)to where VMware-specific files and applications reside.One example of a VMware-specific application is the VMDK files,which form a virtual hard drive (disk image) for the virtual machine.VMX files containing the primary configuration for the virtualmachine would also be in this directory.
Call bonnie from five nights at freddys. Condor must be told whether or not the contents of the vmware_dir directory must be transferred to the machine where the job isto be executed.This required information is given with the submit command vmware_should_transfer_files .With a value of True ,Condor does transfer the contents of the directory.With a value of False ,Condor does not transfer the contents of the directory,and instead presumes that access to this directory isavailable through a shared file system.
By default, Condor uses a snapshot disk for new and modified files.They may also be utilized for checkpoints.The snapshot disk is initially quite small,growing only as new files are created or files are modified.When vmware_should_transfer_files is True ,a job may specify that a snapshot disk is not to beused with the commandIn this case, Condor will utilize original disk files in producingcheckpoints. Note that condor_submit issues an error message and does notsubmit the job if both vmware_should_transfer_files and vmware_snapshot_disk are False .
Note that if snapshot disks are requested and file transfer is notbeing used, the vmware_dir Five nights at freddys steam . setting given in the submit description fileshould not contain any symbolic link path components.This is to work around the issue discussedin the FAQ entry in section 7.3.
Here is a sample submit description file for a VMware virtual machine:This sample uses the vmware_dir command to identifythe location of the disk image to be executed as a Condor job.The contents of this directory are transferred to the machine assignedto execute the Condor job.
2.11.1.2 Xen-Specific Submit Commands
A Xen vm universe job requires specification of theguest kernel. The xen_kernel command accomplishes this, utilizing one of the following definitions.
xen_kernel = included implies that the kernel is to be found in disk image given by the definition of the single file specified in vm_disk .
xen_kernel = path-to-kernel gives a full path and file name of the required kernel. If this kernel must be transferred to machine on which the vm universe job will execute, it must also be included in the xen_transfer_files command.
This form of the xen_kernel command also requires further definition of the xen_root command. xen_root defines the device containing files needed by root .
2.11.2 Checkpoints
Creating a checkpoint is straightforward for a virtual machine,as a checkpoint is a set of files that representa snapshot of both disk image and memory.The checkpoint is created and all files are transferred backto the $(SPOOL) directory on the machine from whichthe job was submitted.The submit command to create checkpoints isWithout this command, no checkpoints are created (by default).With the command, a checkpoint is created any time the vm universe jobs is evicted from the machine upon which it is executing.This occurs as a result of the machine configuration indicatingthat it will no longer execute this job.
vm universe jobs can not use a checkpoint server.
Periodic creation of checkpoints is not supported at this time.
Enabling both networking and checkpointing for a vm universe job can cause networking problems when the job restarts,particularly if the job migrates to a different machine. condor_submit will normally reject such jobs.To enable both, then add the command
Take care with respect to the use of network connections withinthe virtual machine and their interaction with checkpoints.Open network connections at the time of the checkpoint will likelybe lost when the checkpoint is subsequently used to resume executionof the virtual machine.This occurs whether or not the execution resumeson the same machine or a different one within the Condor pool.
2.11.3 Disk Images
2.11.3.1 VMware on Windows and Linux
Following the platform-specificguest OS installation instructions found athttp://partnerweb.vmware.com/GOSIG/home.html,creates a VMware disk image.
2.11.3.2 Xen and KVM While the following web page contains instructions specific toFedora on how to create a virtual guest image,it should provide a good starting point for other platforms as well.
2.11.4 Job Completion in the vm Universe
Job completion for a vm universe job occurs when the virtual machine is shut down, and Condor notices (as the result of a periodic check on the state of the virtual machine).This is different from jobs executed under the environment of other universes.
Shut down of a virtual machine occurs from within the virtualmachine environment.A script, executed with the proper authorization level,is the likely source of the shut down commands. Virtual Machine Applications
Under a Windows 2000, Windows XP, or Vista virtual machine,an administrator issues the command
Under a Linux virtual machine,the root user executesThe command /sbin/halt will not completelyshut down some Linux distributions, and insteadcauses the job to hang.
Since the successful completion of the vm universe jobrequires the successful shut down of the virtual machine,it is good advice to try the shut down procedure outside ofCondor, before a vm universe job is submitted.
Next: 2.12 Time Scheduling for Virtual Machine Applications For Windows Up: Virtual Machine Download Free 2. Users' Manual Previous: 2.10 DAGMan Applications Contents Best Vm For Windows 10 Index htcondor-admin@cs.wisc.edu
