tagsHash目前取的是Tag字符串的哈希值,在Java中hashCode是int类型,占用4个字节,这里为啥要用8字节存储? 我的理解:1.不排除以后修改哈希计算方式。2.延迟消息,tagsHash存储的是消息交付时间戳,此时必须是8字节,也许是为了兼容。 7.2.3 Index Index是索引文件,它的主要目的是通过Key和时间范围来快速检索消息。Index...
Read More What is LPR? In an LPR application, the vehicle’s license plate serves as its identification credential, eliminating the need to administer any additional credentials or mount any tags to the vehicle. Read More
[master]$ git tag -s v1.5 -m ‘my signed 1.5 tag’ You need a passphrase to unlock the secret key for user: “Scott Chacon ” 1024-bit DSA key, ID F721C45A, created 2009-02-09 然后,如果你对某个标签运行’git show’的话,你就会看到你的GPG前面附加上去了。 [master]$ git show v...
[master]$ git tag -s v1.5 -m ‘my signed 1.5 tag’ You need a passphrase to unlock the secret key for user: “Scott Chacon ” 1024-bit DSA key, ID F721C45A, created 2009-02-09 然后,如果你对某个标签运行’git show’的话,你就会看到你的GPG前面附加上去了。 [master]$ git show v...
单master:优点:配置简单 缺点:一旦boroker重启或宕机,会导致整个服务不可用 多master,无salve:优点:配置简单,单个mster宕机或重启对应用无影响,性能最高 缺点: 1)消息的实时性会受到影响,rocketmq的各个master之间互相不通信,所以如果某个master宕机,该机器上未被消费的消息,在机器恢复前无法被消费 ...
Take the first step into the GTM world. Learn what Google Tag Manager is and how does it work. You’ll be introduced to the GTM interface and what are it key components. Last but not least, you’ll learn what are tags, triggers, variables and how are they connected. Topics covered:...
But creating and managing tags, triggers, and variables within the GTM still require specific skills. For example, suppose you need help with how to best use Google Tag Manager; you may end up with a real mess in your account or, in the worst case, may end up breaking the website fun...
400 TagTypeNotSame The category of tags in the same request must be the same. 同一请求中的标签类别必须相同。 400 ResourceNotExist %s. 指定的资源不存在。 400 DeniedForNoneTagCreator %s. 当前用户不是系统标签的创建者。 400 DeniedForScopeNotEqual %s. 同一个系统标签Key只能设置相同的Scope类型。
File tagging- The application supports two ways for tagging files. The default one embeds the tags directly in the name of the file, the other one uses a so called sidecar files for persisting the tags. Searching- The search functionality supports fuzzy functionality and can filter your locatio...
400 TagTypeNotSame The category of tags in the same request must be the same. 同一请求中的标签类别必须相同。 400 ResourceNotExist %s. 指定的资源不存在。 400 DeniedForNoneTagCreator %s. 当前用户不是系统标签的创建者。 400 DeniedForScopeNotEqual %s. 同一个系统标签Key只能设置相同的Scope类型。