Question

我一直在尝试间歇性地成功将我的ndb_backups恢复到新的集群。

我们有一个包含3个API节点的6个NDB节点集群。当我运行ndb_restore时，通常会将前2个或3个节点的备份毫无问题地引入。但是第4和第5个节点因以下错误而失败：

Temporary error: 266: Time-out in NDB, probably caused by deadlock 
Temporary error: 266: Time-out in NDB, probably caused by deadlock 
Retried transaction 10 times. 
Last error266: Time-out in NDB, probably caused by deadlock 
...Unable to recover from errors. Exiting...

奇怪的是，有时候我只需重新运行所有6个备份就可以顺利完成。

我希望有人知道我可以对我的配置进行哪些调整以优化此过程。这是我的版本号和配置：

mysql-5.6.22 ndb-7.3.8

我的mgm配置文件：

###################### 
#MGM CONFIG 
###################### 
[ndbd default] 
# Options affecting ndbd processes on all data nodes: 
NoOfReplicas=2 # Number of replicas 
DataMemory=8144M # How much memory to allocate for data storage 
IndexMemory=8144M # How much memory to allocate for index storage 
# For DataMemory and IndexMemory, we have used the 
# default values. Since the "world" database takes up 
# only about 500KB, this should be more than enough for 
# this example Cluster setup. 

[ndb_mgmd] 
# Management process options: 
hostname=192.168.207.133 # Hostname or IP address of MGM node 
NodeId=1 

[ndb_mgmd] 
# Management process options: 
hostname=192.168.207.45 # Hostname or IP address of MGM node 
NodeId=2 

[ndbd] 
# Options for data node "A": 
hostname=192.168.207.135 # Hostname or IP address 
NodeId=3 

[ndbd] 
# Options for data node "B": 
hostname=192.168.207.171 # Hostname or IP address 
NodeId=4 


[ndbd] 
# Options for data node "C": 
hostname=192.168.207.174 # Hostname or IP address 
NodeId=5 


[ndbd] 
# Options for data node "D": 
hostname=192.168.207.27 # Hostname or IP address 
NodeId=6 


[ndbd] 
# Options for data node "E": 
hostname=192.168.207.169 # Hostname or IP address 
NodeId=7 


[ndbd] 
# Options for data node "F": 
hostname=192.168.207.178 # Hostname or IP address 
NodeId=8 


[mysqld] 
hostname=192.168.207.177 
NodeId=10 

[mysqld] 
hostname=192.168.207.35 
NodeId=11 

[mysqld] 
hostname=192.168.207.148 
NodeId=12

我的mysqld和ndb节点配置

###################### 
#API AND NDB CONFIG 
###################### 
[mysqld] 
ndbcluster 

[mysql_cluster] 
ndb-connectstring=192.168.207.133,192.168.207.45 # location of management server

真的希望有人可以提供帮助。我已经在这一个月了。我们非常广泛地使用数据blob，我知道这会导致这些超时，但我最好奇的是找出为什么6节点恢复有时会成功，有时却没有，以及我如何确保恢复每次都很成功。

我非常愿意尝试并重新发布。我是mysql集群的新手，在过去的几个月里已经学会了堆积，但我渴望了解更多。

提前致谢， GT

mysql-cluser ndb_restore问题

0 个答案: