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From "Eric Wohlstadter (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-19808) GenericUDTFGetSplits should support ACID reads in the temp. table read path
Date Tue, 05 Jun 2018 23:09:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-19808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Wohlstadter updated HIVE-19808:
------------------------------------
    Attachment: HIVE-19808.2.patch

> GenericUDTFGetSplits should support ACID reads in the temp. table read path
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-19808
>                 URL: https://issues.apache.org/jira/browse/HIVE-19808
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>            Reporter: Eric Wohlstadter
>            Assignee: Eric Wohlstadter
>            Priority: Major
>         Attachments: HIVE-19808.1.patch, HIVE-19808.2.patch
>
>
> 1. Map-only reads work on ACID tables.
> 2. Temp. table reads (for multi-vertex queries) work on non-ACID tables.
> 3. But temp. table reads don't work on ACID tables.
> {code}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Failed to create temp table:
java.lang.IllegalStateException: calling recordValidTxn() more than once in the same txnid:420
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDTFGetSplits.createPlanFragment(GenericUDTFGetSplits.java:303)
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDTFGetSplits.process(GenericUDTFGetSplits.java:202)
> 	at org.apache.hadoop.hive.ql.exec.UDTFOperator.process(UDTFOperator.java:116)
> 	at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:985)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:931)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:918)
> 	at org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:95)
> 	at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:985)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:931)
> 	at org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:125)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:492)
> 	at org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:484)
> 	at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:145)
> 	... 16 more
> {code}



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