Facing another issue in the way to move realtime segments to offline segment. Minion throw away

java.lang.IllegalArgumentException: null
	at shaded.com.google.common.base.Preconditions.checkArgument(Preconditions.java:108) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.segment.spi.creator.name.SimpleSegmentNameGenerator.generateSegmentName(SimpleSegmentNameGenerator.java:53) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.segment.local.segment.creator.impl.SegmentIndexCreationDriverImpl.handlePostCreation(SegmentIndexCreationDriverImpl.java:268) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.segment.local.segment.creator.impl.SegmentIndexCreationDriverImpl.build(SegmentIndexCreationDriverImpl.java:258) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.core.segment.processing.framework.SegmentProcessorFramework.process(SegmentProcessorFramework.java:150) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.plugin.minion.tasks.realtimetoofflinesegments.RealtimeToOfflineSegmentsTaskExecutor.convert(RealtimeToOfflineSegmentsTaskExecutor.java:164) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.plugin.minion.tasks.BaseMultipleSegmentsConversionExecutor.executeTask(BaseMultipleSegmentsConversionExecutor.java:135) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.plugin.minion.tasks.BaseMultipleSegmentsConversionExecutor.executeTask(BaseMultipleSegmentsConversionExecutor.java:58) ~[pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.minion.taskfactory.TaskFactoryRegistry$1.runInternal(TaskFactoryRegistry.java:111) [pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.pinot.minion.taskfactory.TaskFactoryRegistry$1.run(TaskFactoryRegistry.java:88) [pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at org.apache.helix.task.TaskRunner.run(TaskRunner.java:71) [pinot-all-0.9.3-jar-with-dependencies.jar:0.9.3-e23f213cf0d16b1e9e086174d734a4db868542cb]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) [?:?]
	at java.lang.Thread.run(Thread.java:831) [?:?]

Seems to be a SegmentNameGenerator but no way to get it working 😕

"task": {
      "taskTypeConfigsMap": {
        "RealtimeToOfflineSegmentsTask": {
          "bucketTimePeriod": "6m",
          "bufferTimePeriod": "1h",
          "roundBucketTimePeriod": "10m",
          "mergeType": "concat",
          "maxNumRecordsPerSegment": "1000",
          "schedule": "* 0/10 * * * ?"
        }
      }
    },

Task config. FY all my row have the same timestamp value (for testing purpose only)

it looks like your min/max time value contains illegal character when generating the segment name.

Timestamp is time as string 😕

you can’t have

:

either. this is not allowed in some file system path.

I will try to store it as a long instead of a string to se if it makes any changes.