search for: openreadon

Hi, I have a code : import libvirt con = libvirt.openReadOnly(None) print con.listDomainsID() When i run the above code using root i get the proper output... but when i use non-root user it givers be a empty list [ ] If i change the 2nd line to con = libvirt.open(qemu:///system) It works. I am using RHEL 6.1 with default kvm and libvirt. unix_sock_gr...

...s behave: [testu at xen ~]$ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import libvirt >>> conn = libvirt.openReadOnly(None) >>> domains = conn.listDomainsID() >>> print domains [0, 3, 15, 16, 21, 24, 26, 30, 32, 36, 38, 41, 43, 45, 47, 49, 51, 55, 63, 67] >>> When I try the same thing on the KVM server: [testu at kvm ~]$ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4...

Hello, I was getting the following error in syslog: libvirtd: 21:19:12.116: 10955: error : qemudDispatchServer:1355 : Too many active clients (20), dropping connection from 127.0.0.1;0 I investigated a bit and tried the following in a python console: import libvirt ~~~~ conn=libvirt.openReadOnly("qemu+ssh://HOST_IP/system<http://10.16.71.1/system> ") //now check the no. of connections (by lsof|grep ESTABLISHED in the HOST), the count will increase by 1 conn.close() *//the count will decrease by 1, it returns 0* ~~~~ conn=libvirt.openReadOnly("qemu+ssh://HOST_IP/syste...

Hi, This is Arpita. I am using Libvirt API in the Windows Vista system.VMware is installed over there.I have installed Libvirt and Python 2.6 in the Windows Vista system andhave written a small test file in Python. Here is the code: import libvirt* * import sys conn = libvirt.openReadOnly(None) if conn == None: print *'Failed to open connection to the hypervisor' * sys.exit(1) try: dom0 = conn.lookupByName(*"vmware1"*) except: print *'Failed to find the main domain' * sys.exit(1) print *"Domain 0: id %d running %s"* % (dom0.ID(), dom0.O...

...s how my Xen servers behave: $ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import libvirt >>> conn = libvirt.openReadOnly(None) >>> domains = conn.listDomainsID() >>> print domains [0, 3, 15, 16, 21, 24, 26, 30, 32, 36, 38, 41, 43, 45, 47, 49, 51, 55, 63, 67] >>> When I try the same thing on the KVM server: $ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Ha...

...how my Xen servers behave: $ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import libvirt >>> conn = libvirt.openReadOnly(None) >>> domains = conn.listDomainsID() >>> print domains [0, 3, 15, 16, 21, 24, 26, 30, 32, 36, 38, 41, 43, 45, 47, 49, 51, 55, 63, 67] >>> When I try the same thing on the KVM server: $ python Python 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red...

This is the report from Virt-Manager Unable to open a connection to the Xen hypervisor/daemon. Verify that: - A Xen host kernel was booted - The Xen service has been started Details: Unable to open connection to hypervisor URI ''xen:///'': libvirt.libvirtError virConnectOpenReadOnly() failed Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 307, in _open_thread self.vmm = libvirt.openReadOnly(self.uri) File "/usr/lib/python2.4/site-packages/libvirt.py", line 132, in openReadOnly if ret is None:ra...

...occurred: Unable to open a connection to the Xen hypervisor/daemon. Verify that: - A Xen host kernel was booted - The Xen service has been started Details: Unable to open connection to hypervisor URI ''xen:///'': <class ''libvirt.libvirtError''> virConnectOpenReadOnly() failed Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 332, in _open_thread self.vmm = libvirt.openReadOnly(self.uri) File "/usr/lib/python2.5/site-packages/libvirt.py", line 144, in openReadOnly if ret is None:ra...

...r: failed to connect to the hypervisor remote$ python test.py xen+tcp://xvm0 libvir: QEMU error : server closed connection Traceback (most recent call last): File "test.py", line 5, in ? conn=libvirt.openReadOnly(uri) File "/usr/lib/python2.4/vendor-packages/libvirt.py", line 174, in openReadOnly if ret is None:raise libvirtError(''virConnectOpenReadOnly() failed'') libvirt.libvirtError: server closed connection remote$ telnet xvm0 16509 9010/1: pollsys(0x00450570...

...I am using ubuntu host machine and KVM is present as guest in that machine.Two virtual machines are there.I am using Python binding to query on the hypervisor and extract the VM related information. Here is my simple code: #!/*usr*/local/bin/*python * import libvirt import sys conn = libvirt.openReadOnly(None) if conn == None: print *'Failed to open connection to the hypervisor' * sys.exit(1) try: domIds = conn.listDomainsID() for id in domIds: dom0 = conn.lookupByID(id) dom0.info() print *"Domain 0: id %d running %s"* % (dom0.ID(), dom0.OSType()) print dom0.info() ex...

Hi Harish, I believe the proper establishment of a connection should be done by libvirt.open() or libvirt.openAuth() or libvirt.openReadOnly(). All of them will return a functional virConnect instance. I'm not sure this segfault is worth to fix since instantiate a virConnect directly is not an expected usage. Hope this information will help you. Best Regards, Hao Liu +86-010-62608262 ----- Original Message ----- > From: &...

Hi, Running on: $ cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) And: $ rpm -qa |grep libvirt libvirt-daemon-2.0.0-10.el7_3.5.x86_64 libvirt-daemon-driver-qemu-2.0.0-10.el7_3.5.x86_64 libvirt-daemon-driver-secret-2.0.0-10.el7_3.5.x86_64 libvirt-client-2.0.0-10.el7_3.5.x86_64 libvirt-daemon-driver-network-2.0.0-10.el7_3.5.x86_64

...ange, though the guest is running, cpuTime does not increase. How can this happen? Any one helps? Thanks. Host information: - CentOS Linux release 7.0.1406 (Core) - libvirt 1.2.8 - qemu-kvm-rhev 2.1.2 ----- python script to capture cpu domain usage ---- import libvirt import time conn = libvirt.openReadOnly("qemu:///system") dom = conn.lookupByName('cpu-test') last_time = time.time() last_cpu_time = dom.info()[4] while True: time.sleep(1) this_time = time.time() dom_info = dom.info() print "CPU time: %s" % dom_info[4] print "CPU util: %s%%" % ((dom_i...

...ease. How can this happen? Any one helps? Thanks. > > Host information: > > - CentOS Linux release 7.0.1406 (Core) > - libvirt 1.2.8 > - qemu-kvm-rhev 2.1.2 > > ----- python script to capture cpu domain usage ---- > import libvirt > import time > > conn = libvirt.openReadOnly("qemu:///system") > dom = conn.lookupByName('cpu-test') > last_time = time.time() > last_cpu_time = dom.info()[4] > > while True: > time.sleep(1) > this_time = time.time() > dom_info = dom.info() > > print "CPU time: %s" % dom_info...

...gt;import libvirt >import time > >def RBcallback(conn, dom, opaque): > print "Reboot: Domain %s(%s)" % (dom.name(), dom.ID()) > print time.time() > >if __name__ == '__main__': > > libvirt.virEventRegisterDefaultImpl() > > conn = libvirt.openReadOnly('qemu:///system') > > conn.domainEventRegisterAny(None, libvirt.VIR_DOMAIN_EVENT_ID_REBOOT, RBcallback, None) > > while True: > libvirt.virEventRunDefaultImpl() >_______________________________________________ >libvirt-users mailing list >libvirt-user...

...X_PATH]; 25 LONG ret; 26 27 // 28 // Create full freeldr.ini path 29 // 30 MachDiskGetBootPath(FreeldrPath, sizeof(FreeldrPath)); 31 strcat(FreeldrPath, "\\freeldr.ini"); 32 33 // Try to open freeldr.ini 34 ret = ArcOpen(FreeldrPath, OpenReadOnly, FileId); 35 36 return ret; 37 } 38 39 BOOLEAN IniFileInitialize(VOID) 40 { 41 FILEINFORMATION FileInformation; 42 ULONG FileId; // File handle for freeldr.ini 43 PCHAR FreeLoaderIniFileData; 44 ULONG FreeLoaderIniFileSize, Count; 45 LONG re...

...here.I am using Python binding to query on the hypervisor and extract the VM related information.I like to print memory stat of the VM like SWAP_IN , SWAP_OUT,free memory, mem cached etc.So, the code, I have written for this, is : #!/usr/local/bin/python import libvirt import sys conn = libvirt.openReadOnly(None) if conn == None: print "Failed to open connection to the hypervisor" sys.exit(1) try: domIds = conn.listDomainsID() for id in domIds: dom0 = conn.lookupByID(id) try: print "memory stats: %s"% dom0.memoryStats().values()...

I've gone through the docs and the API and I didn't see a way to do this but I wanted to confirm. My application gives a bunch of info on the state of a VM that's available through a connection created through libvirt.openReadOnly() but at some point the user might want to restart the VM let's say. This requires a full privilege connection, rather than opening a new connection I was hoping to upgrade the existing one to a full privilege connection. Just confirming that's not possible. -- Doug Goldstein

Hi, I am trying to connect to libvirt on KVM host from a remote python client, using the connection string "qemu+ssh://<IP Address>/system" If I setup password less SSH (Public key) between the machines, I am able to proceed with the connection. But If I have not setup the public key authentication, my code hangs trying to connect to libvirt, and there is a prompt for entering

Hello, I'm trying to use libvirt as a non-root user to obtain statistics on the CPU usage by VMs using the Python API. I'm performing basically the following steps: import libvirt conn = libvirt.openReadOnly(None) dom = conn.lookupByUUIDString('268e38ea-1bc7-41e4-c19e-8eff682e58e4') dom.getCPUStats(True, 0) However, they result in the following error: libvir: QEMU Driver error : Requested operation is not valid: cgroup CPUACCT controller is not mounted ------------------------------------...