a2l007 opened a new issue #7741: Reindexing tasks containing thetaSketches resulting in incorrect sketch values URL: https://github.com/apache/incubator-druid/issues/7741 ### Affected Version 0.13.0-incubating ### Description One of our clusters running on 0.13.0 is seeing data corruption issues with thetasketches on reindexing. The basefact datasource was indexed with `maxBytesInMemory` set as -1 due to #6743 . But the reindexed slices off of this basefact has incorrect values for thetasketch columns. **Ingestion Spec for basefact datasource:** ``` { "type" : "index_hadoop", "id" : "index_base", "spec" : { "dataSchema" : { "dataSource" : "basefact", "parser" : { "type" : "avro_hadoop", "parseSpec" : { "format" : "avro", "timestampSpec" : { "column" : "date", "format" : "yyyyMMdd" }, "dimensionsSpec" : { "dimensions" : [ "src_pty_id" ] } } }, "metricsSpec" : [ { "type" : "thetaSketch", "name" : "test_sketch", "fieldName" : "test_sketch", "size" : 1048576, "shouldFinalize" : true, "isInputThetaSketch" : true, "errorBoundsStdDev" : null } ], "granularitySpec" : { "type" : "uniform", "segmentGranularity" : "DAY", "queryGranularity" : { "type" : "none" }, "rollup" : true, "intervals" : [ "2019-05-22T00:00:00.000Z/2019-05-23T00:00:00.000Z" ] }, "transformSpec" : { "filter" : null, "transforms" : [ ] } }, "ioConfig" : { "type" : "hadoop", "inputSpec" : { "type" : "static", "paths" : "///projects/indexData", "inputFormat" : "org.apache.druid.data.input.avro.AvroValueInputFormat" }, "metadataUpdateSpec" : null, "segmentOutputPath" : null }, "tuningConfig" : { "type" : "hadoop", "workingPath" : null, "version" : "2019-05-23T08:33:19.990Z", "partitionsSpec" : { "type" : "hashed", "targetPartitionSize" : 1050000, "maxPartitionSize" : 1575000, "assumeGrouped" : true, "numShards" : -1, "partitionDimensions" : [ ] }, "shardSpecs" : { }, "indexSpec" : { "bitmap" : { "type" : "concise" }, "dimensionCompression" : "lz4", "metricCompression" : "lz4", "longEncoding" : "longs" }, "maxRowsInMemory" : 150000, "maxBytesInMemory" : -1, "leaveIntermediate" : false, "cleanupOnFailure" : true, "overwriteFiles" : false, "ignoreInvalidRows" : false, "jobProperties" : { "fs.permissions.umask-mode" : "027" }, "combineText" : false, "useCombiner" : false, "buildV9Directly" : true, "numBackgroundPersistThreads" : 0, "forceExtendableShardSpecs" : false, "useExplicitVersion" : false, "allowedHadoopPrefix" : [ ], "logParseExceptions" : false, "maxParseExceptions" : 0 } }, "hadoopDependencyCoordinates" : null, "classpathPrefix" : null, "context" : { }, "groupId" : "index_hadoop_basefact_2019-05-23T08:33:19.990Z", "dataSource" : "basefact", "resource" : { "availabilityGroup" : "index_hadoop_basefact_2019-05-23T08:33:19.990Z", "requiredCapacity" : 1 } } ``` **Ingestion spec for slice datasource:** ``` { "type" : "index_hadoop", "id" : "index_slice", "spec" : { "dataSchema" : { "dataSource" : "slice", "parser" : { "type" : "avro_hadoop", "parseSpec" : { "format" : "avro", "timestampSpec" : { "column" : "date", "format" : "yyyyMMdd" }, "dimensionsSpec" : { "dimensions" : [ "src_pty_id" ] } } }, "metricsSpec" : [ { "type" : "thetaSketch", "name" : "test_sketch", "fieldName" : "test_sketch", "size" : 131072, "shouldFinalize" : true, "isInputThetaSketch" : true, "errorBoundsStdDev" : null } ], "granularitySpec" : { "type" : "uniform", "segmentGranularity" : "DAY", "queryGranularity" : { "type" : "none" }, "rollup" : true, "intervals" : [ "2019-05-22T00:00:00.000Z/2019-05-23T00:00:00.000Z" ] }, "transformSpec" : { "filter" : null, "transforms" : [ ] } }, "ioConfig" : { "type" : "hadoop", "inputSpec" : { "type" : "dataSource", "ingestionSpec" : { "dataSource" : "basefact", "intervals" : [ "2019-05-22T00:00:00Z/P1D" ] } }, "metadataUpdateSpec" : null, "segmentOutputPath" : null }, "tuningConfig" : { "type" : "hadoop", "workingPath" : null, "version" : "2019-05-23T08:54:27.227Z", "partitionsSpec" : { "type" : "hashed", "targetPartitionSize" : 133000, "maxPartitionSize" : 199500, "assumeGrouped" : true, "numShards" : -1, "partitionDimensions" : [ ] }, "shardSpecs" : { }, "indexSpec" : { "bitmap" : { "type" : "concise" }, "dimensionCompression" : "lz4", "metricCompression" : "lz4", "longEncoding" : "longs" }, "maxRowsInMemory" : 10000, "maxBytesInMemory" : -1, "leaveIntermediate" : false, "cleanupOnFailure" : true, "overwriteFiles" : false, "ignoreInvalidRows" : false, "jobProperties" : { "fs.permissions.umask-mode" : "027" }, "combineText" : false, "useCombiner" : false, "buildV9Directly" : true, "numBackgroundPersistThreads" : 0, "forceExtendableShardSpecs" : false, "useExplicitVersion" : false, "allowedHadoopPrefix" : [ ], "logParseExceptions" : false, "maxParseExceptions" : 0 } }, "hadoopDependencyCoordinates" : null, "classpathPrefix" : null, "context" : { } } ``` Querying the basefact datasource provides the result as: ` "test_sketch":43672556.4879819` while the slice datasource results in `"sids_sketch":43676771.06402646` Still investigating the issue, but has anyone observed similar behavior?
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@druid.apache.org For additional commands, e-mail: commits-h...@druid.apache.org
