[Bug] open/total connection metrics for KyuubiTHttpFrontendService is always 1

[lightning-L]

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Describe the bug

I have testing it at my local dev environment. First, cd <kyuubi_project_folder> then add following config to conf/kyuubi-defaults.conf:

kyuubi.frontend.protocols THRIFT_HTTP

then bin/kyuubi start. Check metric with command grep "thrift" work/metrics/report.json -A3:

    "kyuubi.thrift.http.connection.opened" : {
      "count" : 1
    },
    "kyuubi.thrift.http.connection.total" : {
      "count" : 1
    }
  },

=> opened and total should be 0

then run bin/beeline -u "jdbc:hive2://10.xxx.xx.xxx:10010/default;transportMode=http;httpPath=cliservice", check metric again:

"kyuubi.thrift.http.connection.opened" : {
      "count" : 1
    },
    "kyuubi.thrift.http.connection.total" : {
      "count" : 1
    }
  },

=> open and total should be 1

open another terminal and run bin/beeline -u "jdbc:hive2://10.xxx.xx.xxx:10010/default;transportMode=http;httpPath=cliservice", check metric again:

"kyuubi.thrift.http.connection.opened" : {
      "count" : 1
    },
    "kyuubi.thrift.http.connection.total" : {
      "count" : 1
    }
  },

=> open and total should be 2

Affects Version(s)

1.6.0

Kyuubi Server Log Output

No response

Kyuubi Engine Log Output

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Kyuubi Server Configurations

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Kyuubi Engine Configurations

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Additional context

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Are you willing to submit PR?

• [X] Yes I am willing to submit a PR!