用类方法和静态方法实现:一个是追加写文件一行内容,一个是读指定行号的内容 #coding=utf-8 class handle_file(object): def __init__(self,file_path): self.file_path=file_path @classmethod def write_file(cls,file_path,content): with open(file_path,'a') as
一 简介:今天咱们来聊聊MGR的单主切换和新节点加入二 单主模式下变成多主: 1 3306 STOP group_replication; set global group_replication_single_primary_mode=OFF; //关闭单主模式 set global group_replication_enforce_update_everywhere_checks= ON;//打开多主模式 set global group_replication_bootstr
问题 {:timestamp=>"2015-03-04T00:02:47.224000+0800", :message=>"Retrying webhdfs write for multiple times. Maybe you should increase retry_interval or reduce number of workers.", :level=>:warn}{:timestamp=>"2015-03-04T00