Xenserver plugin: Error while uploading the VHD file after snapshot / nova image-create/ or nova backup

After the snapshot is taken, nova calls GLANCE plugin to upload the snapshot image file to the Glance server.
There is an error in Glance plugin to upload the snapshot disk, that's y snapshot disk was not getting uploaded to glance server.

[20111122T15:58:19.520Z| info|band-openstack10|7715824|sm_exec D:db38fa38eff1|xapi] Session.destroy trackid=e67d4f3ea7573edc0de94ee71f86a59e
[20111122T15:58:19.525Z|debug|band-openstack10|7715824|Async.SR.scan R:508c0ec0aa17|xapi] Unmarking SR after SR.scan (task=OpaqueRef:508c0ec0-aa17-d686-125f-9a5891765c43)
[20111122T15:58:20.203Z| info|band-openstack10|7715928 unix-RPC|dispatch:VDI.remove_from_sm_config D:abb30ef994fb|api_effect] VDI.remove_from_sm_config
[20111122T15:58:20.218Z| info|band-openstack10|7715931 unix-RPC|dispatch:VDI.add_to_sm_config D:595c545e492b|api_effect] VDI.add_to_sm_config
[20111122T15:58:20.309Z| info|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|dispatcher] spawning a new thread to handle the current task (trackid=0d6fc9540c272c671b9160368610eb36)
[20111122T15:58:20.310Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|audit] Host.call_plugin host = '169e9e56-8210-45db-8bba-54235600685c (band-openstack10)'; plugin = 'glance'; fn = 'upload_vhd'; args = [ params: (dp0
S'auth_token'
p1
V999888777666
p2
sS'glance_port'
p3
I9292
sS'image_id'
p4
I5
sS'glance_host'
p5
S'os-vpx-9a-f1-f8-b9-b5-2d.openstack.com'
p6
sS'sr_path'
p7
S'/var/run/sr-mount/e84df0ef-0c10-13d2-1af5-c5f5a04b3f9c'
p8
sS'os_type'
p9
S'linux'
p10
sS'vdi_uuids'
p11
(dp12
S'snap'
p13
S'476b565d-a87f-4579-bdeb-d06a85238d71'
p14
sS'image'
p15
S'd46d1615-092b-4545-9507-edbc51446986'
p16
ss. ]
[20111122T15:58:20.468Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|backtrace] Raised at xapi_plugins.ml:50.44-83 -> message_forwarding.ml:231.27-46 -> rbac.ml:229.16-23
[20111122T15:58:20.468Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|backtrace] Raised at hashtbl.ml:93.19-28 -> debug.ml:100.36-65
[20111122T15:58:20.468Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|dispatcher] Server_helpers.exec exception_handler: Got exception XENAPI_PLUGIN_FAILURE: [ upload_vhd; OSError; [Errno 2] No such file or directory: '/var/run/sr-mount/e84df0ef-0c10-13d2-1af5-c5f5a04b3f9c/tmpinD_8T' ]
[20111122T15:58:20.468Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|dispatcher] Raised at hashtbl.ml:93.19-28 -> debug.ml:100.36-65
[20111122T15:58:20.468Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|backtrace] Raised at hashtbl.ml:93.19-28 -> debug.ml:100.36-65
[20111122T15:58:20.476Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|xapi] Raised at server_helpers.ml:93.14-15 -> pervasiveext.ml:22.2-9
[20111122T15:58:20.476Z|debug|band-openstack10|7715939|Async.host.call_plugin R:2d04672ac68a|xapi] Raised at pervasiveext.ml:26.22-25 -> pervasiveext.ml:22.2-9
[20111122T15:58:20.476Z|debug|band-openstack10|7715939||xapi] Raised at pervasiveext.ml:26.22-25 -> pervasiveext.ml:22.2-9