Re: [libvirt] Issue with libvirtd
On 06.02.2017 14:39, Boris Fiuczynski wrote: > On 01/10/2017 10:19 AM, Michal Privoznik wrote: >> On 01/10/2017 07:48 AM, Faysal Ali wrote: >>> Hi Michal, >> >> [It is usually good idea to keep the list CCed - it may help others >> finding a solution to their problems] >> >>> >>> Well I have created my little python/libivrt app to manage my virtual >>> machines. I am using python socket to check libivrt port >>> availability, and >>> the error End of file while reading data: Input/output error* only >>> happens >>> whenever that python socket script is trigger. >>> >>> Here is the script of python socket >>> >>> import libvirt, socket, sys >>> >>> hostname='kvm09' >>> port = 16509 >>> >>> try: >>> socket_host = socket.socket(socket.AF_INET, socket.SOCK_STREAM) >>> socket_host.settimeout(1) >>> socket_host.connect((hostname, port)) >>> socket_host.close() >>> print 'true' >>> except Exception as err: >>> print err >> >> Ah, I haven't expected this. Of course your are seeing the error >> message. Libvirt has its own protocol on the top of TCP and since you >> are connecting and dying immediately - without sending any valid libvirt >> packet, the daemon logs an error. This is perfectly expected. >> >> Also, this is *not* how you connect to libvirt. You want to open a >> libvirt connection: >> >> conn = libvirt.open(uri) >> dom = conn.lookupByName(name) >> ... >> >> Michal > > Michal, > my expectation is that virsh is using a libvirt connection. > Anyway I am getting the error whenever I use virsh start, virsh destroy > or virsh shutdown on a domain, e.g. > > Feb 06 14:01:30 s38lp24 virtlogd[42845]: 2017-02-06 13:01:30.675+: > 42845: error : virNetSocketReadWire:1800 : End of file while reading > data: Input/output error > Feb 06 14:04:32 s38lp24 virtlogd[42845]: 2017-02-06 13:04:32.991+: > 42845: error : virNetSocketReadWire:1800 : End of file while reading > data: Input/output error > > Would that also be covered under "This is perfectly expected."? > > No. this shouldn't happen. Although, I'm not that familiar with the code to tell why & what should be fixed. Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Issue with libvirtd
On 01/10/2017 10:19 AM, Michal Privoznik wrote: On 01/10/2017 07:48 AM, Faysal Ali wrote: Hi Michal, [It is usually good idea to keep the list CCed - it may help others finding a solution to their problems] Well I have created my little python/libivrt app to manage my virtual machines. I am using python socket to check libivrt port availability, and the error End of file while reading data: Input/output error* only happens whenever that python socket script is trigger. Here is the script of python socket import libvirt, socket, sys hostname='kvm09' port = 16509 try: socket_host = socket.socket(socket.AF_INET, socket.SOCK_STREAM) socket_host.settimeout(1) socket_host.connect((hostname, port)) socket_host.close() print 'true' except Exception as err: print err Ah, I haven't expected this. Of course your are seeing the error message. Libvirt has its own protocol on the top of TCP and since you are connecting and dying immediately - without sending any valid libvirt packet, the daemon logs an error. This is perfectly expected. Also, this is *not* how you connect to libvirt. You want to open a libvirt connection: conn = libvirt.open(uri) dom = conn.lookupByName(name) ... Michal Michal, my expectation is that virsh is using a libvirt connection. Anyway I am getting the error whenever I use virsh start, virsh destroy or virsh shutdown on a domain, e.g. Feb 06 14:01:30 s38lp24 virtlogd[42845]: 2017-02-06 13:01:30.675+: 42845: error : virNetSocketReadWire:1800 : End of file while reading data: Input/output error Feb 06 14:04:32 s38lp24 virtlogd[42845]: 2017-02-06 13:04:32.991+: 42845: error : virNetSocketReadWire:1800 : End of file while reading data: Input/output error Would that also be covered under "This is perfectly expected."? -- Mit freundlichen Grüßen/Kind regards Boris Fiuczynski IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martina Köderitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Issue with libvirtd
On 01/10/2017 07:48 AM, Faysal Ali wrote: > Hi Michal, [It is usually good idea to keep the list CCed - it may help others finding a solution to their problems] > > Well I have created my little python/libivrt app to manage my virtual > machines. I am using python socket to check libivrt port availability, and > the error End of file while reading data: Input/output error* only happens > whenever that python socket script is trigger. > > Here is the script of python socket > > import libvirt, socket, sys > > hostname='kvm09' > port = 16509 > > try: > socket_host = socket.socket(socket.AF_INET, socket.SOCK_STREAM) > socket_host.settimeout(1) > socket_host.connect((hostname, port)) > socket_host.close() > print 'true' > except Exception as err: > print err Ah, I haven't expected this. Of course your are seeing the error message. Libvirt has its own protocol on the top of TCP and since you are connecting and dying immediately - without sending any valid libvirt packet, the daemon logs an error. This is perfectly expected. Also, this is *not* how you connect to libvirt. You want to open a libvirt connection: conn = libvirt.open(uri) dom = conn.lookupByName(name) ... Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Issue with libvirtd
On 12/30/2016 04:53 AM, Faysal Ali wrote: > Hi > > I have a CentOS 7.3 server where I am running KVM with few virtual machines. > > I noticed this being repeated regularly in /var/log/messages > > > *libvirtd[1956]: End of file while reading data: Input/output error* Looks like your guests are dying. I mean qemu processes are being terminated. Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] Issue with libvirtd
Hi I have a CentOS 7.3 server where I am running KVM with few virtual machines. I noticed this being repeated regularly in /var/log/messages *libvirtd[1956]: End of file while reading data: Input/output error* Anyone have seen that happening ?? Any idea where should I dig more ?? Br. Umar -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
