[KYLIN-3891] Kylin jdbc throws NoHttpResponseException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: v2.5.2
• Component/s: Driver - JDBC
• Labels: easyfix
• Environment: Huawei FusionInsight
• Assignee: Unassigned
• Reporter: zhao jintao
• Created: 19/Mar/19 03:32
• Updated: 06/Apr/19 15:01
• Resolved: 06/Apr/19 15:01

Description

Hi Team;

When I use kylin jdbc, I find that jdbc throws NoHttpResponseException.
Then I do jdbc test cases in "DriverTest.java", I use one jdbc connection query 20 times, each time first wait 20 minutes. Unfortunately， I also find that jdbc also throws NoHttpResponseException.

This is my test code:

try {
for (int j = 0; j < 20; j++)

{ Thread.sleep(1000*20); Statement state = conn.createStatement(); ResultSet resultSet = state.executeQuery("select count(*) from KYLIN_SALES ;"); printResultSetMetaData(resultSet); printResultSet(resultSet); resultSet.close(); }

} catch (InterruptedException e)

{ e.printStackTrace(); }

This is NoHttpResponseException:

java.sql.SQLException: Error while executing SQL "select count from KYLIN_SALES ;": java.sql.SQLException: org.apache.http.NoHttpResponseException: The target server failed to respond

at org.apache.calcite.avatica.Helper.createException(Helper.java:56)
at org.apache.calcite.avatica.Helper.createException(Helper.java:41)
at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:218)
at org.apache.kylin.jdbc.DriverTest.testHttpClient(DriverTest.java:299)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.RuntimeException: java.sql.SQLException: org.apache.http.NoHttpResponseException: The target server failed to respond
at org.apache.kylin.jdbc.KylinMeta.prepareAndExecute(KylinMeta.java:115)
at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:638)
at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:149)
... 24 more
Caused by: java.sql.SQLException: org.apache.http.NoHttpResponseException: The target server failed to respond
at org.apache.kylin.jdbc.KylinResultSet.execute(KylinResultSet.java:71)
at org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:630)
at org.apache.kylin.jdbc.KylinMeta.prepareAndExecute(KylinMeta.java:111)
... 26 more
Caused by: org.apache.http.NoHttpResponseException: The target server failed to respond
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:95)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)
at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)
at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)
at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:191)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)
at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:715)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:520)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at org.apache.kylin.jdbc.KylinClient.executeKylinQuery(KylinClient.java:407)
at org.apache.kylin.jdbc.KylinClient.executeQuery(KylinClient.java:363)
at org.apache.kylin.jdbc.KylinResultSet.execute(KylinResultSet.java:69)
... 28 more

Process finished with exit code -1