[Gluster-devel] [libvirt] [RFC PATCH v1 0/2] Qemu/Gluster support in Libvirt
Harsh Bora
harsh at linux.vnet.ibm.com
Thu Aug 30 05:28:02 UTC 2012
On 08/30/2012 08:27 AM, Yin Yin wrote:
> Hi, Harsh:
> I make some break in glusterd , and can gdb the qemu-kvm forked from
> libvirtd.
>
> break in glusterd:
>
> (gdb) i b
> Num Type Disp Enb Address What
> 1 breakpoint keep y 0x00007f903ef1a0a0 in server_getspec at
> glusterd-handshake.c:122
> 2 breakpoint keep y 0x00000034f4607070 in
> rpcsvc_program_actor at rpcsvc.c:137
> breakpoint already hit 2 times
> 3 breakpoint keep y 0x00007f903ef199f0 in
> glusterd_set_clnt_mgmt_program at glusterd-handshake.c:359
> 4 breakpoint keep y 0x00007f903ef1a0a0 in server_getspec at
> glusterd-handshake.c:122
>
> in rpcsvc_handle_rpc_call fun, it call rpcsvc_program_actor and return
> right.
> (gdb) p *actor
> $13 = {procname = "GETSPEC", '\000' <repeats 24 times>, procnum = 2,
> actor = 0x7f903ef1a0a0 <server_getspec>, vector_sizer = 0, unprivileged
> = _gf_false}
>
> but in
>
> if(0==svc->allow_insecure&&unprivileged&&!actor->unprivileged){
> /* Non-privileged user, fail request */
> gf_log("glusterd",GF_LOG_ERROR,
> "Request received from non-"
> "privileged port. Failing request");
> rpcsvc_request_destroy(req);
> return-1;
> }
>
> so the server_getspec on server not be called, which cause qemu-kvm
> progress failed.
>
> my question:
> 1.(0==svc->allow_insecure&&unprivileged&&!actor->unprivileged) which one
> wrong here ?
>
You should be able to check this, step next in gdb and print value of
each var (to check which one is false). However, I think its more about
configuring glusterd correctly and less about the libvirt/qemu part of
it. I am willing to be corrected on this.
Let us know if Deepak's suggestion to set nfs.ports-insecure option
(might affect svc->allow_insecure in above statement) on gluster volume
works for you.
Thanks for testing my patch though !
regards,
Harsh
> Best Regards,
> Yin Yin
>
> On Thu, Aug 30, 2012 at 9:14 AM, Yin Yin <maillistofyinyin at gmail.com
> <mailto:maillistofyinyin at gmail.com>> wrote:
>
> Hi, Harsh:
> I've try your patch, but can't boot the vm.
> [root at yinyin qemu-glusterfs]# virsh create gluster-libvirt.xml
> 错误：从 gluster-libvirt.xml 创建域失败
> 错误：Unable to read from monitor: Connection reset by peer
>
> the libvirt build the qemu/gluster command correctly, the qemu-kvm
> try to run, but faile after a while, that cause the libvirt monitor
> connect failed.
>
> the /var/libvirt/qemu/gluster-vm.log follow:
> 2012-08-30 01:03:08.418+0000: starting up
> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=spice
> /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 512 -smp
> 1,sockets=1,cores=1,threads=1 -name gluster-vm -uuid
> f65bd812-45fb-cc2d-75fd-84206248e026 -nodefconfig -nodefaults
> -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/gluster-vm.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
> -no-shutdown -device
> virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x3 -device
> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
> file=gluster://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native
> <http://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native>
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> -device usb-tablet,id=input0 -spice
> port=30038,addr=0.0.0.0,disable-ticketing -vga cirrus -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
> 2012-08-30 01:03:08.423+0000: 4452: debug : virCommandHook:2041 :
> Run hook 0x48f160 0x7f433ba0e570
> 2012-08-30 01:03:08.423+0000: 4452: debug : qemuProcessHook:2475 :
> Obtaining domain lock
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virDomainLockManagerNew:123 : plugin=0x7f43300b7980
> dom=0x7f43240022b0 withResources=1
> 2012-08-30 01:03:08.423+0000: 4452: debug : virLockManagerNew:291 :
> plugin=0x7f43300b7980 type=0 nparams=4 params=0x7f433ba0d9d0 flags=0
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virLockManagerLogParams:98 : key=uuid type=uuid
> value=f65bd812-45fb-cc2d-75fd-84206248e026
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virLockManagerLogParams:94 : key=name type=string value=gluster-vm
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virLockManagerLogParams:82 : key=id type=uint value=1
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virLockManagerLogParams:82 : key=pid type=uint value=4452
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virDomainLockManagerNew:135 : Adding leases
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virDomainLockManagerNew:140 : Adding disks
> 2012-08-30 01:03:08.423+0000: 4452: debug :
> virLockManagerAcquire:337 : lock=0x7f4324001ba0 state='(null)'
> flags=3 fd=0x7f433ba0db3c
> 2012-08-30 01:03:08.423+0000: 4452: debug : virLockManagerFree:374 :
> lock=0x7f4324001ba0
> 2012-08-30 01:03:08.423+0000: 4452: debug : qemuProcessHook:2500 :
> Moving process to cgroup
> 2012-08-30 01:03:08.423+0000: 4452: debug : virCgroupNew:603 : New
> group /libvirt/qemu/gluster-vm
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 0:cpu at /cgroup/cpu in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 1:cpuacct at /cgroup/cpuacct in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 2:cpuset at /cgroup/cpuset in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 3:memory at /cgroup/memory in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 4:devices at /cgroup/devices in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 5:freezer at /cgroup/freezer in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupDetect:262 :
> Detected mount/mapping 6:blkio at /cgroup/blkio in
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:524 :
> Make group /libvirt/qemu/gluster-vm
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/cpu/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/cpuacct/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/cpuset/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/memory/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/devices/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/freezer/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupMakeGroup:546 :
> Make controller /cgroup/blkio/libvirt/qemu/gluster-vm/
> 2012-08-30 01:03:08.424+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/cpu/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.426+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/cpuacct/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.429+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/cpuset/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.432+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/memory/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.435+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/devices/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.437+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/freezer/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.439+0000: 4452: debug : virCgroupSetValueStr:320
> : Set value '/cgroup/blkio/libvirt/qemu/gluster-vm/tasks' to '4452'
> 2012-08-30 01:03:08.442+0000: 4452: debug :
> qemuProcessInitCpuAffinity:1731 : Setting CPU affinity
> 2012-08-30 01:03:08.443+0000: 4452: debug :
> qemuProcessInitCpuAffinity:1760 : Set CPU affinity with specified cpuset
> 2012-08-30 01:03:08.443+0000: 4452: debug : qemuProcessHook:2512 :
> Setting up security labelling
> 2012-08-30 01:03:08.443+0000: 4452: debug :
> virSecurityDACSetProcessLabel:637 : Dropping privileges of DEF to
> 107:107
> 2012-08-30 01:03:08.443+0000: 4452: debug : qemuProcessHook:2519 :
> Hook complete ret=0
> 2012-08-30 01:03:08.443+0000: 4452: debug : virCommandHook:2043 :
> Done hook 0
> 2012-08-30 01:03:08.443+0000: 4452: debug : virCommandHook:2056 :
> Notifying parent for handshake start on 24
> 2012-08-30 01:03:08.443+0000: 4452: debug : virCommandHook:2077 :
> Waiting on parent for handshake complete on 25
> 2012-08-30 01:03:08.495+0000: 4452: debug : virCommandHook:2093 :
> Hook is done 0
> Gluster connection failed for server=10.1.81.111 port=24007
> volume=dht image=windows7-32-DoubCards-iotest-qcow2.img transport=socket
> qemu-kvm: -drive
> file=gluster://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native
> <http://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native>:
> could not open disk image
> gluster://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img
> <http://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img>:
> No data available
> 2012-08-30 01:03:11.565+0000: shutting down
>
> I can boot the vm with the command:
> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=spice
> /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 512 -smp
> 1,sockets=1,cores=1,threads=1 -name gluster-vm -uuid
> f65bd812-45fb-cc2d-75fd-84206248e026 -nodefconfig -nodefaults
> -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/gluster-vm.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
> -no-shutdown -device
> virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x3 -device
> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
> file=gluster://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native
> <http://10.1.81.111:24007/dht/windows7-32-DoubCards-iotest-qcow2.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native>
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> -device usb-tablet,id=input0 -spice
> port=30038,addr=0.0.0.0,disable-ticketing -vga cirrus -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
>
> my question:
> 1.what's the libvirt hook funciton? could it affect the qemu-kvm
> command?
> 2.It's hard to debug the qemu-kvm progress from libvirt, I try to
> hang the glusterd for a moment, then to gdb the qemu-kvm, do your
> have better methods?
>
> Best Regards,
> Yin Yin
>
> You have new mail in /var/spool/mail/root
> On Fri, Aug 24, 2012 at 5:44 PM, Deepak C Shetty
> <deepakcs at linux.vnet.ibm.com <mailto:deepakcs at linux.vnet.ibm.com>>
> wrote:
>
> On 08/24/2012 12:22 PM, Harsh Bora wrote:
>
> On 08/24/2012 12:05 PM, Daniel Veillard wrote:
>
> On Thu, Aug 23, 2012 at 04:31:50PM +0530, Harsh Prateek
> Bora wrote:
>
> This patchset provides support for Gluster protocol
> based network disks.
> It is based on the proposed gluster support in Qemu
> on qemu-devel:
> http://lists.gnu.org/archive/__html/qemu-devel/2012-08/__msg01539.html
> <http://lists.gnu.org/archive/html/qemu-devel/2012-08/msg01539.html>
>
>
> Just to be clear, that qemu feature didn't make the
> deadline for 1.2,
> right ? I don't think we can add support at the libvirt
> level until
> the patches are commited in QEmu, but that doesn't
> prevent reviewing
> them in advance . Right now we are in freeze for 0.10.0,
>
>
>
> I am working on enabling oVirt/VDSM to be able to exploit this,
> using harsh's RFC patches.
> VDSM patch @ http://gerrit.ovirt.org/#/c/__6856/
> <http://gerrit.ovirt.org/#/c/6856/>
>
> An early feedback would help me, especially on the xml spec
> posted here. My VDSM patch
> depends on it.
>
> thanx,
> deepak
>
>
>
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