[ 
https://issues.apache.org/jira/browse/HIVE-13706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15387765#comment-15387765
 ] 

sandeep paul commented on HIVE-13706:
-------------------------------------

the issue is in the following file 
org.apache.hadoop.hive.ql.io.HiveFileFormatUtils
getHiveOutputFormat method where we are creating object using ReflectionUtil

 OutputFormat<?, ?> outputFormat = ReflectionUtil.newInstance(outputClass, 
conf);
   if (!(outputFormat instanceof HiveOutputFormat)) {
      outputFormat = new HivePassThroughOutputFormat(outputFormat);
   }

Say if the outputClass is 
"org.apache.hadoop.hive.ql.io.HivePassThroughOutputFormat" then  
ReflectionUtil.newInstance method fails as it doesn't have default constructor.



> Need default actualOutputFormat for HivePassThroughOutputFormat
> ---------------------------------------------------------------
>
>                 Key: HIVE-13706
>                 URL: https://issues.apache.org/jira/browse/HIVE-13706
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Oleksiy Sayankin
>            Assignee: Oleksiy Sayankin
>
> Customer migrated from Hive-0.13 to Hive-1.2
> Old tables have description:
> {code}
> Table Parameters:
>         hbase.table.name        /user/test/xyz
>         storage_handler        
> org.apache.hadoop.hive.hbase.HBaseStorageHandler
>         transient_lastDdlTime   1462273708
> # Storage Information
> SerDe Library:          org.apache.hadoop.hive.hbase.HBaseSerDe
> InputFormat:            org.apache.hadoop.hive.hbase.HiveHBaseTableInputFormat
> OutputFormat:          
> org.apache.hadoop.hive.ql.io.HivePassThroughOutputFormat
> Compressed:             No
> Num Buckets:            -1
> Bucket Columns:         []
> Sort Columns:           []
> Storage Desc Params:
>         hbase.columns.mapping   :key,cf1:val
>         serialization.format    1
> Time taken: 0.259 seconds, Fetched: 30 row(s)
> {code}
> Because there is no default constructor of HivePassThroughOutputFormat in 
> Hive-1.2, exception happens. I can reproduce it manually.
> 1. Create table in Hive
> {code}
>  create table t1(id int) STORED AS INPUTFORMAT 
> "org.apache.hadoop.hive.ql.io.HiveInputFormat"  OUTPUTFORMAT 
> "org.apache.hadoop.hive.ql.io.HivePassThroughOutputFormat" ;
> {code}
> 2. Perform query
> {code}
> select count(*) from t1;
> {code}
> 3. See exception:
> {code}
> java.lang.RuntimeException: java.lang.NoSuchMethodException: 
> org.apache.hadoop.hive.ql.io.HivePassThroughOutputFormat.<init>()
>       at 
> org.apache.hive.common.util.ReflectionUtil.newInstance(ReflectionUtil.java:85)
>       at 
> org.apache.hadoop.hive.ql.io.HiveFileFormatUtils.getHiveOutputFormat(HiveFileFormatUtils.java:277)
>       at 
> org.apache.hadoop.hive.ql.io.HiveFileFormatUtils.getHiveOutputFormat(HiveFileFormatUtils.java:272)
>       at 
> org.apache.hadoop.hive.ql.exec.Utilities.createDummyFileForEmptyPartition(Utilities.java:3489)
>       at 
> org.apache.hadoop.hive.ql.exec.Utilities.getInputPaths(Utilities.java:3417)
>       at 
> org.apache.hadoop.hive.ql.exec.mr.ExecDriver.execute(ExecDriver.java:372)
>       at 
> org.apache.hadoop.hive.ql.exec.mr.MapRedTask.execute(MapRedTask.java:137)
>       at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
>       at 
> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:88)
>       at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1656)
>       at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1415)
>       at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1198)
>       at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1062)
>       at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1052)
>       at 
> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:213)
>       at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:165)
>       at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:376)
>       at 
> org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:736)
>       at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)
>       at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
>       at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
> Caused by: java.lang.NoSuchMethodException: 
> org.apache.hadoop.hive.ql.io.HivePassThroughOutputFormat.<init>()
>       at java.lang.Class.getConstructor0(Class.java:2892)
>       at java.lang.Class.getDeclaredConstructor(Class.java:2058)
>       at 
> org.apache.hive.common.util.ReflectionUtil.newInstance(ReflectionUtil.java:79)
>       ... 25 more
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to