ppppoooo opened a new pull request, #9655:
URL: https://github.com/apache/iotdb/pull/9655
Function description:
Add configuration item (slaveNodeurls，slaveUsername，slavePassword) to
configure the main cluster IP and backup cluster IP, where the main cluster IP
is required (can have more than one IP, required) and the backup cluster IP is
optional (can have more than one IP, optional)
Function definition:
1. When the primary cluster is normally connected, the client connects to
the primary cluster
2. When the primary cluster is disconnected, it switches to the backup
cluster
3. When the primary cluster is reconnected, it switches to the primary
cluster again
Connection example:
`new Session.Builder()
.nodeUrls(nodeUrls)
.username("root")
.password("root")
.slaveNodeUrls(slaveNodeUrls)
.slaveUsername("root")
.slavePassword("root")
.version(Version.V_1_0)
.build();`
`new SessionPool.Builder()
.nodeUrls(nodeUrls)
.user("root")
.password("root")
.slaveNodeUrls(slaveNodeUrls)
.slaveUser("root")
.slavePassword("root")
.maxSize(3)
.build();`
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