Internal error is raised while reconnecting remote link if remote server is shutdown

[

  {

    "code": 22001,

    "msg": "Connect link failed {\"Default.abc.travel-sample\" : \"Internal error\"}",

    "query_from_user": "connect link abc;"

  }

]

2020-10-17T12:33:28.479+00:00 WARN CBAS.apache.asterix [Executor-6:ClusterController] CBAS0029: Connect link failed {"Default.abc.travel-sample" : "Internal error"}

com.couchbase.analytics.common.exceptions.AnalyticsHyracksException: CBAS0029: Connect link failed {"Default.abc.travel-sample" : "Internal error"}

        at com.couchbase.analytics.lang.ConnectLinkStatement.doHandle(ConnectLinkStatement.java:371) ~[cbas-connector.jar:6.6.1-9124]

        at com.couchbase.analytics.lang.ConnectionStatement.handle(ConnectionStatement.java:65) ~[cbas-connector.jar:6.6.1-9124]

        at org.apache.asterix.app.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:430) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.asterix.app.message.ExecuteStatementRequestMessage.handle(ExecuteStatementRequestMessage.java:155) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.asterix.messaging.CCMessageBroker.receivedMessage(CCMessageBroker.java:64) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.hyracks.control.cc.work.ApplicationMessageWork.lambda$notifyMessageBroker$0(ApplicationMessageWork.java:68) ~[hyracks-control-cc.jar:6.6.1-9124]

        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]

        at java.lang.Thread.run(Unknown Source) [?:?]

2020-10-17T12:33:28.482+00:00 INFO CBAS.messaging.NCMessageBroker [Worker:c69e9d555004ff3faec46e4bb11b1d44] Received message: ExecuteStatementResponseMessage(id=134): 0 characters

2020-10-17T12:33:28.482+00:00 WARN CBAS.server.QueryServiceServlet [HttpExecutor(port:8095)-0] handleException: unexpected exception CBAS0029: Connect link failed {"Default.abc.travel-sample" : "Internal error"}: <ud>{"host":"10.112.205.102:8091","path":"/query/service","statement":"connect link abc;","pretty":false,"mode":"immediate","clientContextID":"54df2870-30c9-4665-9aae-e55895f64376","format":"CLEAN_JSON","timeout":9223372036854775807,"maxResultReads":1,"planFormat":"JSON","expressionTree":false,"rewrittenExpressionTree":false,"logicalPlan":false,"optimizedLogicalPlan":true,"job":false,"profile":"counts","signature":true,"multiStatement":false,"parseOnly":false,"readOnly":false,"maxWarnings":10,"scanConsistency":"not_bounded","scanWait":null}</ud>

com.couchbase.analytics.common.exceptions.AnalyticsHyracksException: CBAS0029: Connect link failed {"Default.abc.travel-sample" : "Internal error"}

        at com.couchbase.analytics.lang.ConnectLinkStatement.doHandle(ConnectLinkStatement.java:371) ~[cbas-connector.jar:6.6.1-9124]

        at com.couchbase.analytics.lang.ConnectionStatement.handle(ConnectionStatement.java:65) ~[cbas-connector.jar:6.6.1-9124]

        at org.apache.asterix.app.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:430) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.asterix.app.message.ExecuteStatementRequestMessage.handle(ExecuteStatementRequestMessage.java:155) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.asterix.messaging.CCMessageBroker.receivedMessage(CCMessageBroker.java:64) ~[asterix-app.jar:6.6.1-9124]

        at org.apache.hyracks.control.cc.work.ApplicationMessageWork.lambda$notifyMessageBroker$0(ApplicationMessageWork.java:68) ~[hyracks-control-cc.jar:6.6.1-9124]

        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]

        at java.lang.Thread.run(Unknown Source) [?:?]