[jira] [Commented] (DRILL-1131) Drill should ignore files in starting with . _

["Jason Altekruse (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14059101#comment-14059101 ] 

Jason Altekruse commented on DRILL-1131:
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All parquet files are required to start with a four byte magic value of 'PAR1' encoded in ASCII, so this would not have any negative impact on reading any legitimate files. It should be easy to fix, I'll take a look at it.

> Drill should ignore files in starting with . _
> ----------------------------------------------
>
>                 Key: DRILL-1131
>                 URL: https://issues.apache.org/jira/browse/DRILL-1131
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Parquet
>            Reporter: Ramana Inukonda Nagaraj
>
> Files containing . and _ as the first characters are ignored by hive and others are these are typically logs and status files written out by tools like mapreduce. Drill should not read them when querying a directory containing a list of parquet files.
> Currently it fails with the error:
> message: "Failure while setting up Foreman. < AssertionError:[ Internal error: Error while applying rule DrillPushProjIntoScan, args [rel#78:ProjectRel.NONE.ANY([]).[](child=rel#15:Subset#1.ENUMERABLE.ANY([]).[],p_partkey=$1,p_type=$2), rel#8:EnumerableTableAccessRel.ENUMERABLE.ANY([]).[](table=[dfs, drillTestDirDencTpchSF100, part])] ] < DrillRuntimeException:[ java.io.IOException: Could not read footer: java.io.IOException: Could not read footer for file com.mapr.fs.MapRFileStatus@99c9d45e ] < IOException:[ Could not read footer: java.io.IOException: Could not read footer for file com.mapr.fs.MapRFileStatus@99c9d45e ] < IOException:[ Could not read footer for file com.mapr.fs.MapRFileStatus@99c9d45e ] < IOException:[ Open failed for file: /drill/testdata/dencSF100/part/.impala_insert_staging, error: Invalid argument (22) ]"



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