Symptoms

Backup of a VE was not created. /var/log/IM/PACI-vm2vf.log contains:

2015-10-27 04:00:11,691 (459d9f8d-434d-4040-8853-f174db5dfc59) INFO  NativeVm2VfCode [Thread-16627128] - [1139041:3458174] INF callback: job [__PrlSrv_CreateVmBackup] index [1139014] PASSED @[common/generic_sdk_cb.c][396][generic_sdk_cb][23400])
2015-10-27 04:00:11,691 (459d9f8d-434d-4040-8853-f174db5dfc59) INFO  NativeVm2VfCode [Thread-16627129] - [1139041:3458174] INF job(generic_sdk_cb) [2] warning: PRL_ERR_CANT_CONNECT_TO_DISPATCHER_ITERATIVELY @[common/generic_sdk_cb.c][53][__wait_job_chk_result_once][23400])
2015-10-27 04:00:11,692 (459d9f8d-434d-4040-8853-f174db5dfc59) INFO  NativeVm2VfCode [Thread-16627130] - [1139041:3458174] INF get_err_message() [1] error message: (The network connection between these servers may be broken, or one of the servers may be down. Contact your Parallels Server administrator for assistance.) @[common/generic_sdk_cb.c][91][get_err_message][23400])
2015-10-27 04:00:11,693 (459d9f8d-434d-4040-8853-f174db5dfc59) ERROR NativeVm2VfCode [Thread-16627131] - [1139041:3458174] ERR __PrlSrv_CreateVmBackup (BACKUP_VE) __wait_job_chk_result: result PRL_ERR_CANT_CONNECT_TO_DISPATCHER_ITERATIVELY / "The network connection between these servers may be broken, or one of the servers may be down. Contact your Parallels Server administrator for assistance." @[common/generic_sdk_cb.c][173][__wait_job_chk_result][23400])
2015-10-27 04:00:11,693 (459d9f8d-434d-4040-8853-f174db5dfc59) ERROR NativeVm2VfCode [Thread-16627132] - [1139041:3458174] ERR wait_job_chk_result(backup_action, backup.c, 492): failure: PRL_ERR_CANT_CONNECT_TO_DISPATCHER_ITERATIVELY @[common/generic_sdk_cb.c][423][generic_sdk_cb][23400])

in the /var/log/parallels.log on the source node* there are messages:

10-27 04:00:10.503 F /disp:9665:922466/ Can't connect to the target dispatcher: host '192.168.255.1' port 64000
10-27 04:00:10.504 F /disp:9665:922466/ Task '25Task_CreateCtBackupSource' with uuid = {77d095f5-5189-497b-adcb-2f9159bbc792} was finished with result PRL_ERR_CANT_CONNECT_TO_DISPATCHER_ITE
RATIVELY (0x80000510) )

*: source hereafter denotes the hardware node that hosts the VE from which the backup is made.

Cause

Source node cannot connect to the target hardware node (192.168.255.1 in example above) of the backup.

Resolution

  1. Check connection from source node to port 64000 on target node (the port where dispatcher is listening)
  2. Access the target node, verify that parallels-server service is running,
  3. Verify that there are no problems in network communication between souce and targer nodes.

Internal content