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Posted to dev@drill.apache.org by "Rahul Challapalli (JIRA)" <ji...@apache.org> on 2016/08/05 22:29:20 UTC
[jira] [Created] (DRILL-4831) Running refresh table metadata
concurrently randomly fails with JsonParseException
Rahul Challapalli created DRILL-4831:
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Summary: Running refresh table metadata concurrently randomly fails with JsonParseException
Key: DRILL-4831
URL: https://issues.apache.org/jira/browse/DRILL-4831
Project: Apache Drill
Issue Type: Bug
Components: Metadata
Affects Versions: 1.8.0
Reporter: Rahul Challapalli
git.commit.id.abbrev=f476eb5
Just run the below command concurrently from 10 different JDBC connections. There is a likelihood that you might encounter the below error
Extracts from the log
{code}
Caused By (java.lang.AssertionError) Internal error: Error while applying rule DrillPushProjIntoScan, args [rel#189411:LogicalProject.NONE.ANY([]).[](input=rel#189289:Subset#3.ENUMERABLE.ANY([]).[],l_orderkey=$1,dir0=$2,dir1=$3,dir2=$4,l_shipdate=$5,l_extendedprice=$6,l_discount=$7), rel#189233:EnumerableTableScan.ENUMERABLE.ANY([]).[](table=[dfs, metadata_caching_pp, l_3level])]
org.apache.calcite.util.Util.newInternal():792
org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch():251
.....
.....
java.lang.Thread.run():745
Caused By (org.apache.drill.common.exceptions.DrillRuntimeException) com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 0)): only regular white space (\r, \n, \t) is allowed between tokens
at [Source: com.mapr.fs.MapRFsDataInputStream@57a574a8; line: 1, column: 2]
org.apache.drill.exec.planner.logical.DrillPushProjIntoScan.onMatch():95
{code}
Attached the complete log message and the data set
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