qianmoQ opened a new issue #8603: kafka index service error task URL: https://github.com/apache/incubator-druid/issues/8603 I was running the kafkaIndexService, and I configured taskCount to be 1 to generate multiple Tasks at a time, resulting in a large number of Tasks failing ```json { "type": "kafka", "dataSchema": { "dataSource": "testData", "granularitySpec": { "queryGranularity": "HOUR", "segmentGranularity": "HOUR", "type": "uniform" }, "metricsSpec": [ { "type": "count", "name": "count" }, { "type": "doubleSum", "name": "doubleSum_eve_b_point", "fieldName": "eve_b_point" }, { "type": "doubleMin", "name": "doubleMin_eve_b_point", "fieldName": "eve_b_point" }, { "type": "doubleMax", "name": "doubleMax_eve_b_point", "fieldName": "eve_b_point" }, { "type": "doubleSum", "name": "doubleSum_visit", "fieldName": "is_visit" }, { "type": "doubleSum", "name": "doubleSum_bounce", "fieldName": "is_bounce" }, { "type": "thetaSketch", "name": "thetaSketch_userid", "fieldName": "sid", "isInputThetaSketch": false, "size": 8388608 }, { "type": "tupleBitsetSketch", "name": "tupleBitsetSketch_HourOfDay_userid", "fieldName": "sid", "isInputThetaSketch": false, "size": 8388608, "unit": "HourOfDay" }, { "type": "tupleBitsetSketch", "name": "tupleBitsetSketch_DayOfWeek_userid", "fieldName": "sid", "isInputThetaSketch": false, "size": 8388608, "unit": "DayOfWeek" }, { "type": "tupleBitsetSketch", "name": "tupleBitsetSketch_DayOfMonth_userid", "fieldName": "sid", "isInputThetaSketch": false, "size": 8388608, "unit": "DayOfMonth" }, { "type": "tupleDoubleSketch", "name": "tupleDoubleSketch_userid", "fieldName": "sid", "isInputThetaSketch": false, "size": 8388608, "maxCount": 48 } ], "parser": { "parseSpec": { "dimensionsSpec": { "dimensionExclusions": [ "eve_b_point" ], "dimensions": [ "eve_b_second", "eve_b_cv", "event", "eve_b_hour", "eve_b_topic", "eve_b_create_time", "eve_b_minute", "eve_b_ym", "eve_b_stat", "eve_b_md_etype", "eve_b_eid", "eve_b_year" ] }, "format": "json", "timestampSpec": { "column": "timestamp", "format": "auto" } }, "type": "string" } }, "tuningConfig": { "type": "kafka", "maxRowsPerSegment": 100000000, "workerThreads": 2 }, "ioConfig": { "topic": "inke_olap_online_transferred", "consumerProperties": { "bootstrap.servers": "cxxxxx" }, "useEarliestOffset": false, "taskCount": 1, "replicas": 1, "taskDuration": "PT15M" } } ```  error log: ```java org.apache.druid.java.util.common.ISE: Failed to publish segments because of [java.lang.RuntimeException: Aborting transaction!]. at org.apache.druid.segment.realtime.appenderator.BaseAppenderatorDriver.lambda$publishInBackground$8(BaseAppenderatorDriver.java:605) ~[druid-server-0.16.0-incubating.jar:0.16.0-incubating] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_131] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131] 2019-09-28T16:19:11,696 ERROR [publish-0] org.apache.druid.indexing.seekablestream.SeekableStreamIndexTaskRunner - Error while publishing segments for sequenceNumber[SequenceMetadata{sequenceId=0, sequenceName='index_kafka_WD452H2WNH18GGN6HRFRSRSG2SDW544S_9c2fb61e50b2b72_0', assignments=[], startOffsets={2=20646665, 6=21142905}, exclusiveStartPartitions=[], endOffsets={2=20653603, 6=21149229}, sentinel=false, checkpointed=true}] org.apache.druid.java.util.common.ISE: Failed to publish segments because of [java.lang.RuntimeException: Aborting transaction!]. at org.apache.druid.segment.realtime.appenderator.BaseAppenderatorDriver.lambda$publishInBackground$8(BaseAppenderatorDriver.java:605) ~[druid-server-0.16.0-incubating.jar:0.16.0-incubating] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_131] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131] 2019-09-28T16:19:11,700 INFO [task-runner-0-priority-0] org.apache.druid.segment.realtime.appenderator.AppenderatorImpl - Shutting down immediately... ```
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