def rollback_snapshot(cluster_name, snapshot):
"""快照回滚
"""
# 更新所有正在使用的快照为备份中, 0代表备份中，1代表使用中
query = ZdSnapshot.update(status="0").where(
(ZdSnapshot.cluster_name == cluster_name) & (ZdSnapshot.path == snapshot.path) & (ZdSnapshot.status == "1")
)
query.execute()
# 根据快照数据更新zookeeper上znode的data
ZookeeperService.set_or_create(cluster_name, snapshot.path, str(snapshot.data))
# 更新回滚的快照状态为正在使用
snapshot.status = "1"
snapshot.save()
def rollback_snapshot(cluster_name, snapshot):
"""快照回滚
"""
# 更新所有正在使用的快照为备份中, 0代表备份中，1代表使用中
query = ZdSnapshot.update(status="0").where(
(ZdSnapshot.cluster_name == cluster_name) &
(ZdSnapshot.path == snapshot.path) &
(ZdSnapshot.status == "1")
)
query.execute()
# 根据快照数据更新zookeeper上znode的data
ZookeeperService.set_or_create(cluster_name, snapshot.path, str(snapshot.data))
# 更新回滚的快照状态为正在使用
snapshot.status = "1"
snapshot.save()
def set_znode(cluster_name, path, data, znode_type='0', business=''):
"""更新或增加znode节点，包括存储于mysql的元数据和存储于zookeeper上的data
"""
path = normalize_path(path)
ZookeeperService.set_or_create(cluster_name, path, data)
# 在mysql上存储znode的相关元数据，节点类型和业务说明
znode = ZdZnode.one(cluster_name=cluster_name, path=path, deleted="0")
if znode is None:
znode = ZdZnode(cluster_name=cluster_name, path=path)
znode.type = znode_type
znode.business = business
znode.save()
try:
# 自动快照（如果配置信息没有变更，实际不会进行快照）
SnapshotService.make_snapshot(cluster_name, path, data)
except MakeSnapshotError as exc:
log.error('make snapshot error: %s', str(exc))
def set_znode(cluster_name, path, data, znode_type='0', business=''):
"""更新或增加znode节点，包括存储于mysql的元数据和存储于zookeeper上的data
"""
path = normalize_path(path)
ZookeeperService.set_or_create(cluster_name, path, data)
# 在mysql上存储znode的相关元数据，节点类型和业务说明
znode = ZdZnode.one(cluster_name=cluster_name, path=path, deleted="0")
if znode is None:
znode = ZdZnode(cluster_name=cluster_name, path=path)
znode.type = znode_type
znode.business = business
znode.save()
try:
# 自动快照（如果配置信息没有变更，实际不会进行快照）
SnapshotService.make_snapshot(cluster_name, path, data)
except MakeSnapshotError as exc:
log.error('make snapshot error: %s', str(exc))