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https://issues.apache.org/jira/browse/SPARK-17403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15468449#comment-15468449
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Davies Liu commented on SPARK-17403:
------------------------------------
[~rhernando] Could you pull out the string column (SL_RD_ColR_N) and dump it as
parquet file to reproduce the issue here? There could a bug in scanning cached
strings (depends on the data).
> Fatal Error: Scan cached strings
> --------------------------------
>
> Key: SPARK-17403
> URL: https://issues.apache.org/jira/browse/SPARK-17403
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Environment: Spark standalone cluster (3 Workers, 47 cores)
> Ubuntu 14
> Java 8
> Reporter: Ruben Hernando
>
> The process creates views from JDBC (SQL server) source and combines them to
> create other views.
> Finally it dumps results via JDBC
> Error:
> {quote}
> # JRE version: Java(TM) SE Runtime Environment (8.0_101-b13) (build
> 1.8.0_101-b13)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.101-b13 mixed mode
> linux-amd64 )
> # Problematic frame:
> # J 4895 C1 org.apache.spark.unsafe.Platform.getLong(Ljava/lang/Object;J)J (9
> bytes) @ 0x00007fbb355dfd6c [0x00007fbb355dfd60+0xc]
> #
> {quote}
> SQL Query plan (fields truncated):
> {noformat}
> == Parsed Logical Plan ==
> 'Project [*]
> +- 'UnresolvedRelation `COEQ_63`
> == Analyzed Logical Plan ==
> InstanceId: bigint, price: double, ZoneId: int, priceItemId: int, priceId: int
> Project [InstanceId#20236L, price#20237, ZoneId#20239, priceItemId#20242,
> priceId#20244]
> +- SubqueryAlias coeq_63
> +- Project [_TableSL_SID#143L AS InstanceId#20236L, SL_RD_ColR_N#189 AS
> price#20237, 24 AS ZoneId#20239, 6 AS priceItemId#20242, 63 AS priceId#20244]
> +- SubqueryAlias 6__input
> +-
> Relation[_TableSL_SID#143L,_TableP_DC_SID#144L,_TableSH_SID#145L,ID#146,Name#147,TableP_DCID#148,TableSHID#149,SL_ACT_GI_DTE#150,SL_Xcl_C#151,SL_Xcl_C#152,SL_Css_Cojs#153L,SL_Config#154,SL_CREATEDON#
> .......... 36 more fields] JDBCRelation((select [SLTables].[_TableSL_SID],
> [SLTables]. ... [...] FROM [sch].[SLTables] [SLTables] JOIN sch.TPSLTables
> TPSLTables ON [TPSLTables].[_TableSL_SID] = [SLTables].[_TableSL_SID] where
> _TP = 24) input)
> == Optimized Logical Plan ==
> Project [_TableSL_SID#143L AS InstanceId#20236L, SL_RD_ColR_N#189 AS
> price#20237, 24 AS ZoneId#20239, 6 AS priceItemId#20242, 63 AS priceId#20244]
> +- InMemoryRelation [_TableSL_SID#143L, _TableP_DC_SID#144L,
> _TableSH_SID#145L, ID#146, Name#147, ... 36 more fields], true, 10000,
> StorageLevel(disk, memory, deserialized, 1 replicas)
> : +- *Scan JDBCRelation((select [SLTables].[_TableSL_SID],
> [SLTables].[_TableP_DC_SID], [SLTables].[_TableSH_SID], [SLTables].[ID],
> [SLTables].[Name], [SLTables].[TableP_DCID], [SLTables].[TableSHID],
> [TPSLTables].[SL_ACT_GI_DTE], ... [...] FROM [sch].[SLTables] [SLTables]
> JOIN sch.TPSLTables TPSLTables ON [TPSLTables].[_TableSL_SID] =
> [SLTables].[_TableSL_SID] where _TP = 24) input)
> [_TableSL_SID#143L,_TableP_DC_SID#144L,_TableSH_SID#145L,ID#146,Name#147,TableP_DCID#148,TableSHID#149,SL_ACT_GI_DTE#150,SL_Xcl_C#151,...
> 36 more fields]
> == Physical Plan ==
> *Project [_TableSL_SID#143L AS InstanceId#20236L, SL_RD_ColR_N#189 AS
> price#20237, 24 AS ZoneId#20239, 6 AS priceItemId#20242, 63 AS priceId#20244]
> +- InMemoryTableScan [_TableSL_SID#143L, SL_RD_ColR_N#189]
> : +- InMemoryRelation [_TableSL_SID#143L, _TableP_DC_SID#144L,
> _TableSH_SID#145L, ID#146, Name#147, ... 36 more fields], true, 10000,
> StorageLevel(disk, memory, deserialized, 1 replicas)
> : : +- *Scan JDBCRelation((select [SLTables].[_TableSL_SID],
> [SLTables].[_TableP_DC_SID], [SLTables].[_TableSH_SID], [SLTables].[ID],
> [SLTables].[Name], [SLTables].[TableP_DCID], ... [...] FROM [sch].[SLTables]
> [SLTables] JOIN sch.TPSLTables TPSLTables ON [TPSLTables].[_TableSL_SID] =
> [SLTables].[_TableSL_SID] where _TP = 24) input)
> [_TableSL_SID#143L,_TableP_DC_SID#144L,_TableSH_SID#145L,ID#146,Name#147,,...
> 36 more fields]
> {noformat}
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