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From "Arina Ielchiieva (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-4511) refresh over empty folder results in error, we need a better error message
Date Mon, 03 Jul 2017 15:44:01 GMT

     [ https://issues.apache.org/jira/browse/DRILL-4511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arina Ielchiieva resolved DRILL-4511.
-------------------------------------
    Resolution: Fixed

> refresh over empty folder results in error, we need a better error message
> --------------------------------------------------------------------------
>
>                 Key: DRILL-4511
>                 URL: https://issues.apache.org/jira/browse/DRILL-4511
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Parquet
>    Affects Versions: 1.7.0
>            Reporter: Khurram Faraaz
>
> refresh table metadata <empty-folder> results in error on sqlline prompt. We need
a better message on sqlline prompt, something like, "The folder is empty, and there is no
metadata to refresh"
> [root@centos-01 ~]# hadoop fs -ls /tmp
> ...
> drwxr-xr-x   - root root          0 2015-07-21 21:16 /tmp/complex
> ...
> {noformat}
> 0: jdbc:drill:schema=dfs.tmp> refresh table metadata complex;
> +--------+--------------+
> |   ok   |   summary    |
> +--------+--------------+
> | false  | Error: null  |
> +--------+--------------+
> 1 row selected (0.131 seconds)
> {noformat}
> Stack trace from drillbit.log
> {noformat}
> 2016-03-15 10:50:23,747 [2918170f-84ee-a6fb-38eb-266108bd64f3:foreman] INFO  o.a.drill.exec.work.foreman.Foreman
- Query text for query id 2918170f-84ee-a6fb-38eb-266108bd64f3: refresh table metadata complex
> 2016-03-15 10:50:23,790 [2918170f-84ee-a6fb-38eb-266108bd64f3:foreman] ERROR o.a.d.e.p.s.h.RefreshMetadataHandler
- Failed to update metadata for table 'complex'
> java.lang.NullPointerException: null
>         at org.apache.drill.exec.store.dfs.FileSelection.minusDirectories(FileSelection.java:153)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory$WorkspaceSchema.create(WorkspaceSchemaFactory.java:594)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory$WorkspaceSchema.create(WorkspaceSchemaFactory.java:370)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.planner.sql.ExpandingConcurrentMap.getNewEntry(ExpandingConcurrentMap.java:96)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.planner.sql.ExpandingConcurrentMap.get(ExpandingConcurrentMap.java:90)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory$WorkspaceSchema.getTable(WorkspaceSchemaFactory.java:524)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.calcite.jdbc.SimpleCalciteSchema.getTable(SimpleCalciteSchema.java:82)
~[calcite-core-1.4.0-drill-r10.jar:1.4.0-drill-r10]
>         at org.apache.calcite.jdbc.CalciteAbstractSchema$SchemaPlusImpl.getTable(CalciteAbstractSchema.java:177)
~[calcite-core-1.4.0-drill-r10.jar:1.4.0-drill-r10]
>         at org.apache.drill.exec.planner.sql.handlers.RefreshMetadataHandler.getPlan(RefreshMetadataHandler.java:73)
~[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:94)
[drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:927) [drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:251) [drill-java-exec-1.7.0-SNAPSHOT.jar:1.7.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_45]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_45]
>         at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
> 2016-03-15 10:50:23,801 [2918170f-84ee-a6fb-38eb-266108bd64f3:frag:0:0] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2918170f-84ee-a6fb-38eb-266108bd64f3:0:0: State change requested AWAITING_ALLOCATION -->
RUNNING
> 2016-03-15 10:50:23,801 [2918170f-84ee-a6fb-38eb-266108bd64f3:frag:0:0] INFO  o.a.d.e.w.f.FragmentStatusReporter
- 2918170f-84ee-a6fb-38eb-266108bd64f3:0:0: State to report: RUNNING
> 2016-03-15 10:50:23,808 [2918170f-84ee-a6fb-38eb-266108bd64f3:frag:0:0] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2918170f-84ee-a6fb-38eb-266108bd64f3:0:0: State change requested RUNNING --> FINISHED
> 2016-03-15 10:50:23,808 [2918170f-84ee-a6fb-38eb-266108bd64f3:frag:0:0] INFO  o.a.d.e.w.f.FragmentStatusReporter
- 2918170f-84ee-a6fb-38eb-266108bd64f3:0:0: State to report: FINISHED
> {noformat}



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