[Xen-devel] error of VM Migration (xl toolstack) failed when migrating Webserver VM with 100 connecitons using httperf

[Minalkumar Patel <patel_mp@xxxxxxxxxxx>]

 

error of Migration failed when migrating Webserver VM with 100 connecitons using httperf

First time it generats (a part of follwoing output):

migration target: Transfer complete, requesting permission to start domain.
migration sender: Target has acknowledged transfer.
migration sender: Giving target permission to start.
migration target: Got permission, starting domain.
[everything ok uptill now]
libxl: error: libxl.c:321:libxl__domain_rename: domain with name "drbdvm1" already exists.
migration target: Failure, destroying our copy.
migration sender: Target reports startup failure (status code 6).
migration target: Cleanup OK, granting sender permission to resume.
migration sender: Trying to resume at our end.
libxl: debug: libxl.c:435:libxl_domain_resume: ao 0xa91bf0: create: how=(nil) callback=(nil) poller=0xa91c50
xc: error: Cannot resume uncooperative HVM guests: Internal error        
libxl: error: libxl.c:404:libxl__domain_resume: xc_domain_resume failed for domain 10: No such file or directory
libxl: debug: libxl_event.c:1499:libxl__ao_complete: ao 0xa91bf0: complete, rc=-3
libxl: debug: libxl.c:438:libxl_domain_resume: ao 0xa91bf0: inprogress: poller=0xa91c50, flags=ic
libxl: debug: libxl_event.c:1471:libxl__ao__destroy: ao 0xa91bf0: destroy
Migration failed due to problems at target.

Second time it generates (a part of follwing output):

xc: detail: Start last iteration
[everything ok uptill now]                                          
libxl: debug: libxl_dom.c:933:libxl__domain_suspend_common_callback: issuing PVHVM suspend request via XenBus control node
libxl: debug: libxl_dom.c:937:libxl__domain_suspend_common_callback: wait for the guest to acknowledge suspend request
libxl: error: libxl_dom.c:958:libxl__domain_suspend_common_callback: guest didn't acknowledge suspend, cancelling request
libxl: error: libxl_dom.c:980:libxl__domain_suspend_common_callback: guest didn't acknowledge suspend, request cancelled
xc: error: Suspend request failed: Internal error                            
xc: error: Domain appears not to have suspended: Internal error              
libxl: debug: libxl_event.c:512:libxl__ev_xswatch_register: watch w=0x21c5f80 wpath=/local/domain/0/device-model/10/logdirty/ret token=3/1: register slotnum=3
libxl: debug: libxl_event.c:457:watchfd_callback: watch w=0x21c5f80 wpath=/local/domain/0/device-model/10/logdirty/ret token=3/1: event epath=/local/domain/0/device-model/10/logdirty/ret
libxl: debug: libxl_event.c:457:watchfd_callback: watch w=0x21c5f80 wpath=/local/domain/0/device-model/10/logdirty/ret token=3/1: event epath=/local/domain/0/device-model/10/logdirty/ret
libxl: debug: libxl_event.c:549:libxl__ev_xswatch_deregister: watch w=0x21c5f80 wpath=/local/domain/0/device-model/10/logdirty/ret token=3/1: deregister slotnum=3
libxl: debug: libxl_event.c:426:watchfd_callback: watch epath=/local/domain/0/device-model/10/logdirty/ret token=3/1: empty slot
xc: detail: Save exit rc=1                                                   
libxl-save-helper: debug: complete r=1: No such device                       
libxl: error: libxl_dom.c:1266:libxl__xc_domain_save_done: saving domain: domain did not respond to suspend request: No such device
libxl: debug: libxl_event.c:1499:libxl__ao_complete: ao 0x21c5bf0: complete, rc=-8
libxl: debug: libxl_event.c:1471:libxl__ao__destroy: ao 0x21c5bf0: destroy   
migration sender: libxl_domain_suspend failed (rc=-8)
xc: error: 0-length read: Internal error
xc: error: read_exact_timed failed (read rc: 0, errno: 0): Internal error
xc: error: Error when reading batch size (0 = Success): Internal error
xc: error: Error when reading batch (0 = Success): Internal error
libxl: error: libxl_create.c:820:libxl__xc_domain_restore_done: restoring domain: Resource temporarily unavailable
libxl: error: libxl_create.c:902:domcreate_rebuild_done: cannot (re-)build domain: -3
libxl: error: libxl.c:1394:libxl__destroy_domid: non-existant domain 6
libxl: error: libxl.c:1358:domain_destroy_callback: unable to destroy guest with domid 6
libxl: error: libxl_create.c:1153:domcreate_destruction_cb: unable to destroy domain 6 following failed creation
migration target: Domain creation failed (code -3).
libxl: info: libxl_exec.c:118:libxl_report_child_exitstatus: migration target process [11104] exited with error status 3
Migration failed, failed to suspend at sender.


What goes wrong please tell me?It also shows migration of Webserver VM at destination  and it can be manually started and in worknig condition. But
at sender, VM  is still continueing  webserver based httperf connections and doesn't turn off....so i can have VM at both side ..why sender is not stopping activity?

Regards,

 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel