[masternode-3] current.health="YELLOW" message="Cluster health status changed from [GREEN] to [YELLOW] (reason: [{datanode-7}{6p9QPc46QpqbXuT-_dfRlA}{PBlaxHqXQTKRVYQOkDeg3w}{datanode-7}{10.100.3.130}{10.100.3.130:9303}{dr}{8.7.1} reason: lagging])." previous.health="GREEN" reason="{datanode-7}{6p9QPc46QpqbXuT-_dfRlA}{PBlaxHqXQTKRVYQOkDeg3w}{datanode-7}{10.100.3.130}{10.100.3.130:9303}{dr}{8.7.1} reason: lagging"
时间: 2023-11-01 08:51:56 浏览: 38
这是一个 Elasticsearch 集群健康状态变化的日志信息,说明当前集群的健康状态从 GREEN 变成了 YELLOW。原因是 datanode-7 这个节点的数据复制落后于其他节点,导致集群状态变为 YELLOW。其中,`current.health` 表示当前健康状态,`previous.health` 表示上一次的健康状态,`reason` 则表示导致状态变化的具体原因。在这个日志信息中,`reason` 字段指定了具体的节点以及导致状态变化的原因。
相关问题
def addAtIndex(self,index,val): if index < 0 or index > self.size: return -1 if index == self.size: self.addAtTail(val) return current = self.head for i in range(index-1): current = current.next new_node = Listnode(val,current,current.next) current.next.prev = new_node current.next = new_node self.size += 1 AttributeError: 'NoneType' object has no attribute 'prev' current.next.prev = new_node 请修改
这段代码中可能存在两个问题:
1. 如果链表为空,即 self.head 为 None,那么在第 9 行的 for 循环中会报错。因此需要在第 3 行加上判断链表是否为空的条件。
2. 如果插入的位置是最后一个结点,即 index == self.size,那么在第 7 行调用 addAtTail 方法后,函数应该返回而不是继续执行。因此需要在第 8 行加上 return 语句。
修改后的代码如下:
```
def addAtIndex(self, index, val):
if index < 0 or index > self.size:
return -1
if index == self.size:
self.addAtTail(val)
return
if self.head is None:
self.addAtHead(val)
return
current = self.head
for i in range(index-1):
current = current.next
new_node = ListNode(val, current, current.next)
current.next.prev = new_node
current.next = new_node
self.size += 1
```
这样就可以避免空指针异常和插入最后一个结点时的错误。
检查代码并修改:class Node: def init(self, data): self.data = data self.prev = None self.next = None Class DoublyLinkedlist: # def init(self) self.head = None def remove(self,item): current = self.head previous = None found = False while not found: if current.getData() == item found = True else: previous = current current = current.getNext() if previous == None: self.head = current.getNext() current.prev = None else: previous.setNext(current.getNext()) current.prev = previous
class Node:
def __init__(self, data):
self.data = data
self.prev = None
self.next = None
class DoublyLinkedList: # 类名应该是DoublyLinkedList而不是DoublyLinkedlist
def __init__(self):
self.head = None
def append(self, data):
new_node = Node(data)
if self.head is None:
self.head = new_node
else:
current = self.head
while current.next is not None:
current = current.next
current.next = new_node
new_node.prev = current
def prepend(self, data):
new_node = Node(data)
if self.head is None:
self.head = new_node
else:
self.head.prev = new_node
new_node.next = self.head
self.head = new_node
def delete(self, data):
current = self.head
while current is not None:
if current.data == data:
if current.prev is not None:
current.prev.next = current.next
else:
self.head = current.next
if current.next is not None:
current.next.prev = current.prev
return
current = current.next
def print_list(self):
current = self.head
while current is not None:
print(current.data)
current = current.next
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