gerbal opened a new issue #7724: Lookup transform expression not defined during ingest from kafka URL: https://github.com/apache/incubator-druid/issues/7724 ### Affected Version master ### Description When trying to resolve an attribute via a lookup at ingestion time I get the following error: ``` 2019-05-21T21:06:54,247 ERROR [KafkaSupervisor-example] org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor - SeekableStreamSupervisor[example] failed to handle notice: {class=org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor, exceptionType=class org.apache.druid.java.util.common.RE, exceptionMessage=function 'lookup' is not defined., noticeClass=RunNotice} org.apache.druid.java.util.common.RE: function 'lookup' is not defined. at org.apache.druid.math.expr.ExprListenerImpl.exitFunctionExpr(ExprListenerImpl.java:303) ~[druid-core-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.math.expr.antlr.ExprParser$FunctionExprContext.exitRule(ExprParser.java:212) ~[druid-core-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.antlr.v4.runtime.tree.ParseTreeWalker.exitRule(ParseTreeWalker.java:71) ~[antlr4-runtime-4.5.1.jar:4.5.1] at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:54) ~[antlr4-runtime-4.5.1.jar:4.5.1] at org.apache.druid.math.expr.Parser.parse(Parser.java:85) ~[druid-core-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.math.expr.Parser.parse(Parser.java:72) ~[druid-core-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.transform.ExpressionTransform.getRowFunction(ExpressionTransform.java:68) ~[druid-processing-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.transform.Transformer.<init>(Transformer.java:50) ~[druid-processing-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.transform.TransformSpec.toTransformer(TransformSpec.java:122) ~[druid-processing-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.transform.TransformingStringInputRowParser.<init>(TransformingStringInputRowParser.java:44) ~[druid-processing-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.transform.TransformSpec.decorate(TransformSpec.java:108) ~[druid-processing-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.segment.indexing.DataSchema.getParser(DataSchema.java:125) ~[druid-server-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.seekablestream.SeekableStreamIndexTask.<init>(SeekableStreamIndexTask.java:102) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.kafka.KafkaIndexTask.<init>(KafkaIndexTask.java:70) ~[?:?] at org.apache.druid.indexing.kafka.supervisor.KafkaSupervisor.createIndexTasks(KafkaSupervisor.java:246) ~[?:?] at org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor.createTasksForGroup(SeekableStreamSupervisor.java:2492) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor.createNewTasks(SeekableStreamSupervisor.java:2306) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor.runInternal(SeekableStreamSupervisor.java:1012) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor$RunNotice.handle(SeekableStreamSupervisor.java:264) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at org.apache.druid.indexing.seekablestream.supervisor.SeekableStreamSupervisor.lambda$tryInit$3(SeekableStreamSupervisor.java:723) ~[druid-indexing-service-0.15.0-incubating-SNAPSHOT.jar:0.15.0-incubating-SNAPSHOT] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_181] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_181] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181] ``` Here is the ingestion spec: ```json { "type": "kafka", "dataSchema": { "dataSource": "example", "parser": { "type": "string", "parseSpec": { "format": "json", "timestampSpec": { "column": "timestamp", "format": "posix" }, "flattenSpec": { "fields": [ { "type": "path", "name": "item_id", "expr": "$.parameters.item_id" } ] }, "dimensionsSpec": { "dimensions": [ "item_id", "item_lang" ], "dimensionExclusions": [] } } }, "metricsSpec": [ { "type": "count", "name": "count" } ], "transformSpec": { "transforms": [ { "type": "expression", "name": "item_lang", "expression": "lookup(item_id, 'item-lang-lookup')" }] }, "granularitySpec": { "type": "uniform", "segmentGranularity": "DAY", "rollup": true } }, "tuningConfig": { "type": "kafka", "maxRowsPerSegment": 2000000 }, "ioConfig": { "topic": "topic", "consumerProperties": { "bootstrap.servers": "kafka:9092" }, "taskCount": 1, "replicas": 1, "taskDuration": "PT1H", "useEarliestOffset": true } } ```
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