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  1. Hive
  2. HIVE-22734

orc multi-byte character varchar type stored in some truncation



    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 2.3.6
    • None
    • Database/Schema
    • unbuntu and centos7 



      hi , I 'm a noob new one ...

      but I use hive for some years , 


      I create a table with one column  as varhcar(6) with orc 

      an insert a multi-byte content in the table as below 



      hive> insert into mq1 values ('一二三四五六七') ;
      WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
      Query ID = mq5445_20200116144748_cb87f769-9d3f-4b3b-b384-92c22b8ef06a
      Total jobs = 1
      Launching Job 1 out of 1
      Number of reduce tasks is set to 0 since there's no reduce operator
      Job running in-process (local Hadoop)
      2020-01-16 14:47:52,024 Stage-1 map = 100%, reduce = 0%
      Ended Job = job_local484725283_0001
      Stage-4 is selected by condition resolver.
      Stage-3 is filtered out by condition resolver.
      Stage-5 is filtered out by condition resolver.
      Moving data to directory hdfs://wsl:9000/user/hive/warehouse/mq1/.hive-staging_hive_2020-01-16_14-47-48_936_2091348056955954494-1/-ext-10000
      Loading data to table default.mq1
      MapReduce Jobs Launched:
      Stage-Stage-1: HDFS Read: 524 HDFS Write: 315 SUCCESS
      Total MapReduce CPU Time Spent: 0 msec
      Time taken: 5.467 seconds
      hive> select * from mq1 ;
      Time taken: 0.301 seconds, Fetched: 2 row(s)
      hive> show create table mq1 ;
      CREATE TABLE `mq1`(
      `col1` varchar(6))
      Time taken: 0.281 seconds, Fetched: 12 row(s)


      It seems cannot store as six multi-byte word as mysql , for chinese in utf8 , it stored only 2 word for 3byte each in utf8 .

      And in hive other format , for example , text format , parquet work well in this situation .

      My hive version is 2.3.6/2.2.0 for hadoop 2.7.0 ,orc cannot work well . 

      It seems that orc project fix some in version 1.6.2 and I just change the orc-core-1.6.2.jar in the hive lib. 

      It does not work well either .


       hive> insert into mq2 values ('一二三四五六七') ; hive> insert into mq2 values ('一二三四五六七') ; WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.Query ID = mq5445_20200116152037_0799cb92-b6d4-4e25-9544-b0213768217aTotal jobs = 3Launching Job 1 out of 3Number of reduce tasks is set to 0 since there's no reduce operator('一二三四五六七') ;Job running in-process (local Hadoop)SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".SLF4J: Defaulting to no-operation (NOP) logger implementationSLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.2020-01-16 15:20:40,127 Stage-1 map = 0%,  reduce = 0%2020-01-16 15:20:41,137 Stage-1 map = 100%,  reduce = 0%Ended Job = job_local2085128098_0002Stage-4 is selected by condition resolver.Stage-3 is filtered out by condition resolver.Stage-5 is filtered out by condition resolver.Moving data to directory hdfs://wsl:9000/user/hive/warehouse/mq2/.hive-staging_hive_2020-01-16_15-20-37_380_7016274963079907260-1/-ext-10000Loading data to table default.mq2MapReduce Jobs Launched: Stage-Stage-1:  HDFS Read: 1165 HDFS Write: 701 SUCCESSTotal MapReduce CPU Time Spent: 0 msecOKTime taken: 4.627 secondshive> select * from mq2 ;NoViableAltException(352@[]) at org.apache.hadoop.hive.ql.parse.HiveParser.atomSelectStatement(HiveParser.java:36710) at org.apache.hadoop.hive.ql.parse.HiveParser.selectStatement(HiveParser.java:36987) at org.apache.hadoop.hive.ql.parse.HiveParser.atomSelectStatement(HiveParser.java:36920) at org.apache.hadoop.hive.ql.parse.HiveParser.selectStatement(HiveParser.java:36987) at org.apache.hadoop.hive.ql.parse.HiveParser.regularBody(HiveParser.java:36633) at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpressionBody(HiveParser.java:35822) at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpression(HiveParser.java:35710) at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:2284) at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1333) at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:208) at org.apache.hadoop.hive.ql.parse.ParseUtils.parse(ParseUtils.java:77) at org.apache.hadoop.hive.ql.parse.ParseUtils.parse(ParseUtils.java:70) at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:468) at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1317) at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1457) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1237) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1227) at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:233) at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:184) at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403) at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:686) 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.apache.hadoop.util.RunJar.run(RunJar.java:244) at org.apache.hadoop.util.RunJar.main(RunJar.java:158)FAILED: ParseException line 1:1 cannot recognize input near ''一二三四五六七'' ')' '<EOF>' in statementhive> select * from mq2 ;OK一二三四五六Time taken: 0.536 seconds, Fetched: 1 row(s)





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            bulbcat Qing Miao
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