ccaominh commented on issue #8899: HDFS input source URL: https://github.com/apache/incubator-druid/pull/8899#issuecomment-555819133 Manually tested with HDFS setup from the hadoop quickstart tutorial (https://druid.apache.org/docs/latest/tutorials/tutorial-batch-hadoop.html) and the following ingestion spec modified from the hadoop tutorial to use `index_parallel` with the new HDFS input source (there are a few extra JSON properties, but they get ignored): ```json { "type" : "index_parallel", "spec" : { "dataSchema" : { "dataSource" : "wikipedia", "dimensionsSpec" : { "dimensions" : [ "channel", "cityName", "comment", "countryIsoCode", "countryName", "isAnonymous", "isMinor", "isNew", "isRobot", "isUnpatrolled", "metroCode", "namespace", "page", "regionIsoCode", "regionName", "user", { "name": "added", "type": "long" }, { "name": "deleted", "type": "long" }, { "name": "delta", "type": "long" } ] }, "timestampSpec" : { "format" : "auto", "column" : "time" }, "metricsSpec" : [], "granularitySpec" : { "type" : "uniform", "segmentGranularity" : "day", "queryGranularity" : "none", "intervals" : ["2015-09-12/2015-09-13"], "rollup" : false } }, "ioConfig" : { "type" : "index_parallel", "inputSource" : { "type" : "hdfs", "paths" : "/quickstart/wikiticker-2015-09-12-sampled.json.gz" }, "inputFormat" : { "type" : "json" } }, "tuningConfig" : { "type" : "index_parallel", "partitionsSpec" : { "type" : "hashed", "numShards" : 2 }, "forceGuaranteedRollup" : true, "forceExtendableShardSpecs" : true, "jobProperties" : { "fs.default.name" : "hdfs://druid-hadoop-demo:9000", "fs.defaultFS" : "hdfs://druid-hadoop-demo:9000", "dfs.datanode.address" : "druid-hadoop-demo", "dfs.client.use.datanode.hostname" : "true", "dfs.datanode.use.datanode.hostname" : "true", "yarn.resourcemanager.hostname" : "druid-hadoop-demo", "yarn.nodemanager.vmem-check-enabled" : "false", "mapreduce.map.java.opts" : "-Duser.timezone=UTC -Dfile.encoding=UTF-8", "mapreduce.job.user.classpath.first" : "true", "mapreduce.reduce.java.opts" : "-Duser.timezone=UTC -Dfile.encoding=UTF-8", "mapreduce.map.memory.mb" : 1024, "mapreduce.reduce.memory.mb" : 1024 } } }, "hadoopDependencyCoordinates": ["org.apache.hadoop:hadoop-client:2.8.3"] } ```
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