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https://issues.apache.org/jira/browse/HIVE-14355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15396866#comment-15396866
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Prasanth Jayachandran commented on HIVE-14355:
----------------------------------------------
[~sershe] can you plz take a look at the changes?
To summarize
- LlapInputFormat disables llap io if it finds unsafe schema evolution
- OrcEncodedDataConsumer has to known the file schema which it gets from
OrcEncodedDataReader and reader schema from job conf. Both are required to
create schema evolution object.
- This check can happen only at runtime because we don't know the file schema
at compile time
> Schema evolution for ORC in llap is broken for int to string conversion
> -----------------------------------------------------------------------
>
> Key: HIVE-14355
> URL: https://issues.apache.org/jira/browse/HIVE-14355
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.1.0, 2.2.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Critical
> Attachments: HIVE-14355-java-only.patch, HIVE-14355.1.patch
>
>
> When schema is evolved from any integer type to string then following
> exceptions are thrown in LLAP (Works fine in Tez). I guess this should happen
> even for other conversions.
> {code}
> hive> create table orc_integer(b bigint) stored as orc;
> hive> insert into orc_integer values(100);
> hive> select count(*) from orc_integer where b=100;
> OK
> 1
> hive> alter table orc_integer change column b b string;
> hive> select count(*) from orc_integer where b=100;
> // FAIL with following exception
> {code}
> {code:title=When vectorization is enabled}
> 2016-07-27T01:48:05,611 INFO [TezTaskRunner ()]
> vector.VectorReduceSinkOperator: RECORDS_OUT_INTERMEDIATE_Map_1:0,
> 2016-07-27T01:48:05,611 ERROR [TezTaskRunner ()] tez.TezProcessor:
> java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException:
> Hive Runtime Error while processing row
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.processRow(MapRecordSource.java:95)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.pushRecord(MapRecordSource.java:70)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.run(MapRecordProcessor.java:393)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:185)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:168)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:370)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:61)
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at
> org.apache.hadoop.hive.llap.daemon.impl.StatsRecordingThreadPool$WrappedCallable.call(StatsRecordingThreadPool.java:110)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime
> Error while processing row
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:866)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.processRow(MapRecordSource.java:86)
> ... 18 more
> Caused by: java.lang.ClassCastException:
> org.apache.hadoop.hive.ql.exec.vector.LongColumnVector cannot be cast to
> org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector
> at
> org.apache.hadoop.hive.ql.exec.vector.expressions.gen.FilterStringGroupColEqualStringGroupScalarBase.evaluate(FilterStringGroupColEqualStringGroupScalarBase.java:42)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator.process(VectorFilterOperator.java:110)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:879)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:130)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:774)
> ... 19 more
> {code}
> {code:title=When vectorization is disabled}
> 2016-07-27T01:52:43,328 INFO [TezTaskRunner
> (1469608604787_0002_26_00_000000_0)] exec.ReduceSinkOperator: Using tag = -1
> 2016-07-27T01:52:43,328 INFO [TezTaskRunner
> (1469608604787_0002_26_00_000000_0)] exec.OperatorUtils: Setting output
> collector: RS[4] --> Reducer 2
> 2016-07-27T01:52:43,329 ERROR [TezTaskRunner
> (1469608604787_0002_26_00_000000_0)] io.BatchToRowReader: Error at row 0/1,
> column 0/1 org.apache.hadoop.hive.ql.exec.vector.LongColumnVector@7630e56a
> java.lang.ClassCastException:
> org.apache.hadoop.hive.ql.exec.vector.LongColumnVector cannot be cast to
> org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector
> at
> org.apache.hadoop.hive.ql.io.BatchToRowReader.nextString(BatchToRowReader.java:334)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.BatchToRowReader.nextValue(BatchToRowReader.java:602)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.BatchToRowReader.next(BatchToRowReader.java:149)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.BatchToRowReader.next(BatchToRowReader.java:78)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:350)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.HiveRecordReader.doNext(HiveRecordReader.java:79)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.HiveRecordReader.doNext(HiveRecordReader.java:33)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.next(HiveContextAwareRecordReader.java:116)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.mapred.split.TezGroupedSplitsInputFormat$TezGroupedSplitsRecordReader.next(TezGroupedSplitsInputFormat.java:151)
> ~[tez-mapreduce-0.8.4.jar:0.8.4]
> at
> org.apache.tez.mapreduce.lib.MRReaderMapred.next(MRReaderMapred.java:116)
> ~[tez-mapreduce-0.8.4.jar:0.8.4]
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.pushRecord(MapRecordSource.java:62)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.run(MapRecordProcessor.java:393)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:185)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:168)
> ~[hive-exec-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:370)
> ~[tez-runtime-internals-0.8.4.jar:0.8.4]
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
> ~[tez-runtime-internals-0.8.4.jar:0.8.4]
> at
> org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
> ~[tez-runtime-internals-0.8.4.jar:0.8.4]
> at java.security.AccessController.doPrivileged(Native Method)
> ~[?:1.8.0_91]
> at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_91]
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> ~[hadoop-common-2.6.0.jar:?]
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:61)
> ~[tez-runtime-internals-0.8.4.jar:0.8.4]
> at
> org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
> ~[tez-runtime-internals-0.8.4.jar:0.8.4]
> at
> org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> ~[tez-common-0.8.4.jar:0.8.4]
> at
> org.apache.hadoop.hive.llap.daemon.impl.StatsRecordingThreadPool$WrappedCallable.call(StatsRecordingThreadPool.java:110)
> ~[hive-llap-server-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[?:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [?:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [?:1.8.0_91]
> at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
> {code}
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