druid/extensions-contrib/orc-extensions/example/hadoop_orc_job.json

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{
"type": "index_hadoop",
"spec": {
"ioConfig": {
"type": "hadoop",
"inputSpec": {
"type": "static",
"inputFormat": "org.apache.hadoop.hive.ql.io.orc.OrcNewInputFormat",
"paths": "wikipedia.gz.orc"
},
"metadataUpdateSpec": {
"type": "postgresql",
"connectURI": "jdbc:postgresql://localhost/druid",
"user" : "druid",
"password" : "asdf",
"segmentTable": "druid_segments"
},
"segmentOutputPath": "/tmp/segments"
},
"dataSchema": {
"dataSource": "wikipedia",
"parser": {
"type": "orc",
"parseSpec": {
"format": "timeAndDims",
"timestampSpec": {
"column": "timestamp",
"format": "auto"
},
"dimensionsSpec": {
"dimensions": [
"col1",
"col2"
],
"dimensionExclusions": [],
"spatialDimensions": []
}
},
"typeString": "struct<timestamp:string,col1:string,col2:array<string>,val1:float>"
},
"metricsSpec": [],
"granularitySpec": {
"type": "uniform",
"segmentGranularity": "DAY",
"queryGranularity": "NONE",
"intervals": ["2015-01-01/2017-01-01"]
}
},
"tuningConfig": {
"type": "hadoop",
"workingPath": "tmp/working_path",
"partitionsSpec": {
"targetPartitionSize": 5000000
},
"jobProperties" : {
"mapreduce.map.java.opts": "-server -Duser.timezone=UTC -Dfile.encoding=UTF-8 -XX:+PrintGCDetails -XX:+PrintGCTimeStamps",
"mapreduce.reduce.java.opts": "-server -Duser.timezone=UTC -Dfile.encoding=UTF-8 -XX:+PrintGCDetails -XX:+PrintGCTimeStamps",
"mapred.child.java.opts": "-server -XX:+PrintGCDetails -XX:+PrintGCTimeStamps"
},
"leaveIntermediate": true
}
}
}