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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-11725) Delete on ACID enabled table provides wrong results
Date Thu, 03 Sep 2015 20:55:46 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman reassigned HIVE-11725:
-------------------------------------

    Assignee: Eugene Koifman

> Delete on ACID enabled table provides wrong results
> ---------------------------------------------------
>
>                 Key: HIVE-11725
>                 URL: https://issues.apache.org/jira/browse/HIVE-11725
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>            Reporter: Rajesh Balamohan
>            Assignee: Eugene Koifman
>
> This is based on the master codebase (last commit: 492c8b1d88ffcb68ba4f77a3a49ae8fc768cdd7c)
> Created a table with TBLPROPERTIES("transactional"="true", "NO_AUTO_COMPACTION"="true").
 Populated bunch of records in the table and deleted few of them. Select query after delete
does not seem to consider the deleted records.
> {noformat}
> set hive.support.concurrency=true;
> set hive.enforce.bucketing=true;
> set hive.exec.dynamic.partition.mode=nonstrict;
> set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
> set hive.compactor.initiator.on=false;
> set hive.compactor.worker.threads=0;
> DROP TABLE `lineitem_acid_bucket`;
> CREATE TABLE `lineitem_acid_bucket`(
>   `l_orderkey` bigint,
>   `l_partkey` bigint,
>   `l_suppkey` bigint,
>   `l_linenumber` bigint,
>   `l_quantity` double,
>   `l_extendedprice` double,
>   `l_discount` double,
>   `l_tax` double,
>   `l_returnflag` string,
>   `l_linestatus` string,
>   `l_shipdate` string,
>   `l_commitdate` string,
>   `l_receiptdate` string,
>   `l_shipinstruct` string,
>   `l_shipmode` string,
>   `l_comment` string)
> CLUSTERED BY (l_orderkey)
> INTO 256 BUCKETS STORED AS ORC TBLPROPERTIES("transactional"="true", "NO_AUTO_COMPACTION"="true");
  <-- intentionally enabled NO_AUTO_COMPACTION, so that user can have control on compaction
> -- Populate some data from master lineitem table which has data
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 0 AND l_orderkey
< 10000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 10000001
AND l_orderkey < 20000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 20000001
AND l_orderkey < 30000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 30000001
AND l_orderkey < 40000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 40000001
AND l_orderkey < 50000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 50000001
AND l_orderkey < 60000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 60000001
AND l_orderkey < 70000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 70000001
AND l_orderkey < 80000000;
> INSERT INTO lineitem_acid_bucket SELECT * FROM lineitem WHERE l_orderkey > 80000001
AND l_orderkey < 90000000;
> SELECT count(*) FROM lineitem_acid_bucket WHERE l_orderkey > 15000001 and l_orderkey
< 65000000;
> 49990192
> DELETE FROM lineitem_acid_bucket WHERE l_orderkey > 15000001 and l_orderkey < 20000000;
> INFO  : Table rajesh.lineitem_acid_bucket stats: [numFiles=2368, numRows=84989293, totalSize=2921444884,
rawDataSize=0]
> Run the same select query again
> SELECT count(*) FROM lineitem_acid_bucket WHERE l_orderkey > 15000001 and l_orderkey
< 65000000;
> 44992181 <--- wrong value
> {noformat}



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