[
https://issues.apache.org/jira/browse/HIVE-6050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Szehon Ho updated HIVE-6050:
----------------------------
Description:
Connect from JDBC driver of Hive 0.13 (TProtocolVersion=v4) to HiveServer2 of
Hive 0.10 (TProtocolVersion=v1), will return the following exception:
{noformat}
java.sql.SQLException: Could not establish connection to
jdbc:hive2://localhost:10000/default: Required field 'client_protocol' is
unset! Struct:TOpenSessionReq(client_protocol:null)
at
org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:336)
at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:158)
at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:187)
at
com.cloudera.itest.hiveserver.UnmanagedHiveServer.createConnection(UnmanagedHiveServer.java:73)
at
com.cloudera.itest.AbstractTestWithStaticConfiguration.createConnection(AbstractTestWithStaticConfiguration.java:68)
at com.cloudera.itest.FirstTest.sanityConnectionTest(FirstTest.java:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.apache.thrift.TApplicationException: Required field
'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null)
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
at
org.apache.hive.service.cli.thrift.TCLIService$Client.recv_OpenSession(TCLIService.java:160)
at
org.apache.hive.service.cli.thrift.TCLIService$Client.OpenSession(TCLIService.java:147)
at
org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:327)
... 37 more
{noformat}
On code analysis, it looks like the 'client_protocol' scheme is a ThriftEnum,
which doesn't seem to be backward-compatible. Look at the code path in the
generated file 'TOpenSessionReq.java', method
TOpenSessionReqStandardScheme.read():
1. The method will call 'TProtocolVersion.findValue()' on the thrift protocol's
byte stream, which returns null if the client is sending an enum value unknown
to the server. (v4 is unknown to server)
2. The method will then call struct.validate(), which will throw the above
exception because of null version.
So doesn't look like the current backward-compatibility scheme will work.
was:
Connect from JDBC driver of Hive 0.12 (TProtocolVersion=v4) to HiveServer2 of
Hive 0.10 (TProtocolVersion=v1), will return the following exception:
{noformat}
java.sql.SQLException: Could not establish connection to
jdbc:hive2://localhost:10000/default: Required field 'client_protocol' is
unset! Struct:TOpenSessionReq(client_protocol:null)
at
org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:336)
at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:158)
at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:187)
at
com.cloudera.itest.hiveserver.UnmanagedHiveServer.createConnection(UnmanagedHiveServer.java:73)
at
com.cloudera.itest.AbstractTestWithStaticConfiguration.createConnection(AbstractTestWithStaticConfiguration.java:68)
at com.cloudera.itest.FirstTest.sanityConnectionTest(FirstTest.java:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.apache.thrift.TApplicationException: Required field
'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null)
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
at
org.apache.hive.service.cli.thrift.TCLIService$Client.recv_OpenSession(TCLIService.java:160)
at
org.apache.hive.service.cli.thrift.TCLIService$Client.OpenSession(TCLIService.java:147)
at
org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:327)
... 37 more
{noformat}
On code analysis, it looks like the 'client_protocol' scheme is a ThriftEnum,
which doesn't seem to be backward-compatible. Look at the code path in the
generated file 'TOpenSessionReq.java', method
TOpenSessionReqStandardScheme.read():
1. The method will call 'TProtocolVersion.findValue()' on the thrift protocol's
byte stream, which returns null if the client is sending an enum value unknown
to the server. (v4 is unknown to server)
2. The method will then call struct.validate(), which will throw the above
exception because of null version.
So doesn't look like the current backward-compatibility scheme will work.
> JDBC backward compatibility is broken
> -------------------------------------
>
> Key: HIVE-6050
> URL: https://issues.apache.org/jira/browse/HIVE-6050
> Project: Hive
> Issue Type: Bug
> Components: JDBC
> Reporter: Szehon Ho
>
> Connect from JDBC driver of Hive 0.13 (TProtocolVersion=v4) to HiveServer2 of
> Hive 0.10 (TProtocolVersion=v1), will return the following exception:
> {noformat}
> java.sql.SQLException: Could not establish connection to
> jdbc:hive2://localhost:10000/default: Required field 'client_protocol' is
> unset! Struct:TOpenSessionReq(client_protocol:null)
> at
> org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:336)
> at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:158)
> at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105)
> at java.sql.DriverManager.getConnection(DriverManager.java:571)
> at java.sql.DriverManager.getConnection(DriverManager.java:187)
> at
> com.cloudera.itest.hiveserver.UnmanagedHiveServer.createConnection(UnmanagedHiveServer.java:73)
> at
> com.cloudera.itest.AbstractTestWithStaticConfiguration.createConnection(AbstractTestWithStaticConfiguration.java:68)
> at com.cloudera.itest.FirstTest.sanityConnectionTest(FirstTest.java:19)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
> at
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
> at
> com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
> at
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
> Caused by: org.apache.thrift.TApplicationException: Required field
> 'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null)
> at
> org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
> at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
> at
> org.apache.hive.service.cli.thrift.TCLIService$Client.recv_OpenSession(TCLIService.java:160)
> at
> org.apache.hive.service.cli.thrift.TCLIService$Client.OpenSession(TCLIService.java:147)
> at
> org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:327)
> ... 37 more
> {noformat}
> On code analysis, it looks like the 'client_protocol' scheme is a ThriftEnum,
> which doesn't seem to be backward-compatible. Look at the code path in the
> generated file 'TOpenSessionReq.java', method
> TOpenSessionReqStandardScheme.read():
> 1. The method will call 'TProtocolVersion.findValue()' on the thrift
> protocol's byte stream, which returns null if the client is sending an enum
> value unknown to the server. (v4 is unknown to server)
> 2. The method will then call struct.validate(), which will throw the above
> exception because of null version.
> So doesn't look like the current backward-compatibility scheme will work.
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