Zookeeper of synchronous data in soul gateway

A real loser 2021-01-21 23:49:35
zookeeper synchronous data soul gateway

Soul Gateway synchronization data Zookeeper

Adjust configuration

pom Comment out the original default websocket Synchronization mode , Change it to zookeeper Sync .

 <!--soul data sync start use zookeeper-->
<!--soul data sync start use websocket-->

The same goes for comments yml The default in asking price websocket Configuration changed to zookeeper To configure

url: localhost:2181
sessionTimeout: 5000
connectionTimeout: 2000

Corresponding gateway soul-bootstrap Layer according to the official document to do the corresponding settings

According to the debugging process in the previous article . We also found zookeeper Corresponding configuration file and loaded code
From the transfer format, we can see that websocket The configuration of synchronization is basically the same , But again , When I'm debugging here final ObjectProvider pluginSubscriber There are some questions about the data source of the component . So I searched the whole world PluginDataSubscriber, Found, implemented PluginDataSubscriber The class of the interface CommonPluginDataSubscriber, We found that there are event subscription and refresh related methods in this class . without doubt , These are the key logic to realize data change refresh in subsequent specific operations
Then . I find CommonPluginDataSubscriber There are no classes Spring Related notes in . So how was he injected into spring What about the middle . So I did a global search , Find this class in soul-web Module SoulConfiguration Injection is done in the module

public PluginDataSubscriber pluginDataSubscriber(final ObjectProvider<List > pluginDataHandlerList) {
return new CommonPluginDataSubscriber(pluginDataHandlerList.getIfAvailable(Collections::emptyList));

  At the same time, we can find that there are other forwarding and plug-in processing logic in this class . This follow-up analysis may use , It's worth paying attention to
In addition, you can see that the above list also applies to ObjectProvider To inject plug-in data processing classes . Use this clue . We can do a global search PluginDataHandler Related to the class , After searching, I found , Basically every plug-in is similar to this Configuration-->PluginDataHandler

meanwhile , You can know where the data is going RateLimiterConfiguration-->RateLimiterPluginDataHandler-->SoulConfiguration-->pluginDataSubscriber-->ZookeeperSyncDataConfiguration

At the same time ZookeeperSyncDataService We can see based on zookeeper The client side of the selection and rules , Metadata and permission related data synchronization operations . About this part , We'll continue to look at how to synchronize data
meanwhile , Later, we will explain some related content about responsive programming , for example Mono and Flux

Welcome to search and pay attention to the wechat face-to-face program developed by me and friends 【 Interview assistant of big factory 】 And the official account 【 Micro view technology 】, And the summary of the classified interview questions https://github.com/zhendiao/JavaInterview


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