wecharyu opened a new pull request, #4150:
URL: https://github.com/apache/hive/pull/4150
### What changes were proposed in this pull request?
Currently `HiveMetaStoreClient` use `CLIENT_SOCKET_TIMEOUT` as both socket
timeout and connection timeout, we want to introduce a new HiveMetaStoreClient
config for connection timeout:
```java
CLIENT_CONNECTION_TIMEOUT("metastore.client.connection.timeout",
"hive.metastore.client.connection.timeout", 10,
TimeUnit.SECONDS, "MetaStore Client connection timeout in
seconds"),
```
### Why are the changes needed?
1. achieve a more flexible config for client socket timeout and connection
timeout.
2. we can use a smaller connection timeout to fail-fast reconnect to another
HMS server.
### Does this PR introduce _any_ user-facing change?
Yes, user can set the client connection timeout by this conf.
### How was this patch tested?
Add a unit test.
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