Ubuntu Instance struck in PROLOG state

I am trying to create a Ubuntu Instance using Ubuntu Template but it got struck in PROLOG state. But tty-linux instance works perfectly fine. I think the problem is size of the image or size of datastore. What is the problem? How to overcome this problem?

VM log:
Wed Feb 22 16:54:19 2017 [Z0][VM][I]: New state is ACTIVE
Wed Feb 22 16:54:19 2017 [Z0][VM][I]: New LCM state is PROLOG

User template

HYPERVISOR = “kvm”
LOGO = “images/logos/ubuntu.png”
SCHED_REQUIREMENTS = "ID=“7"”

Template

AUTOMATIC_DS_REQUIREMENTS = ““CLUSTERS/ID” @> 0”
AUTOMATIC_REQUIREMENTS = “(CLUSTER_ID = 0) & !(PUBLIC_CLOUD = YES)”
CONTEXT = [
DISK_ID = “1”,
ETH0_CONTEXT_FORCE_IPV4 = “”,
ETH0_DNS = “xxxxx”,
ETH0_GATEWAY = “xxxx”,
ETH0_GATEWAY6 = “”,
ETH0_IP = “xxxxx”,
ETH0_IP6 = “”,
ETH0_IP6_ULA = “”,
ETH0_MAC = “xxxxxx”,
ETH0_MASK = “xxxxx”,
ETH0_MTU = “”,
ETH0_NETWORK = “xxxxx”,
ETH0_SEARCH_DOMAIN = “”,
ETH0_VLAN_ID = “”,
ETH0_VROUTER_IP = “”,
ETH0_VROUTER_IP6 = “”,
ETH0_VROUTER_MANAGEMENT = “”,
NETWORK = “YES”,
SSH_PUBLIC_KEY = “xxxx
xxxx”,
TARGET = “hda” ]
CPU = “1”
DISK = [
CLONE = “YES”,
CLONE_TARGET = “SYSTEM”,
CLUSTER_ID = “0”,
DATASTORE = “default”,
DATASTORE_ID = “1”,
DEV_PREFIX = “vd”,
DISK_ID = “0”,
DISK_SNAPSHOT_TOTAL_SIZE = “0”,
DISK_TYPE = “FILE”,
DRIVER = “qcow2”,
IMAGE = “Ubuntu_G_Image”,
IMAGE_ID = “13”,
IMAGE_STATE = “2”,
IMAGE_UNAME = “oneadmin”,
LN_TARGET = “SYSTEM”,
READONLY = “NO”,
SAVE = “NO”,
SIZE = “81920”,
SOURCE = “/var/lib/one//datastores/1/70be304e1f01caecb03d734aec74dd87”,
TARGET = “vd”,
TM_MAD = “ssh”,
TYPE = “FILE” ]
GRAPHICS = [
LISTEN = “0.0.0.0”,
PORT = “xxx”,
TYPE = “VNC” ]
MEMORY = “2048”
NIC = [
AR_ID = “1”,
BRIDGE = “br0”,
CLUSTER_ID = “0”,
IP = “xxxxxxxx”,
MAC = “xxxxxxxx”,
NETWORK = “virtual_network”,
NETWORK_ID = “6”,
NIC_ID = “0”,
SECURITY_GROUPS = “0”,
TARGET = “one-161-0”,
VN_MAD = “dummy” ]
OS = [
ARCH = “x86_64” ]
SECURITY_GROUP_RULE = [
PROTOCOL = “ALL”,
RULE_TYPE = “OUTBOUND”,
SECURITY_GROUP_ID = “0”,
SECURITY_GROUP_NAME = “default” ]
SECURITY_GROUP_RULE = [
PROTOCOL = “ALL”,
RULE_TYPE = “INBOUND”,
SECURITY_GROUP_ID = “0”,
SECURITY_GROUP_NAME = “default” ]
TEMPLATE_ID = “16”
VMID = “161”

Host details:

How to solve this issue?..

have you tried scp’ing the image to the target datastore manually? how long does it take?