[GitHub] [incubator-druid] jihoonson commented on issue #7926: Kafka Indexing breaks due to Mismatched DatSourceMetadata types during InternalReset call

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jihoonson commented on issue #7926: Kafka Indexing breaks due to Mismatched DatSourceMetadata types during InternalReset call
URL: https://github.com/apache/incubator-druid/issues/7926#issuecomment-521476109
 
 
   Hi @acdn-mpreston, just raised https://github.com/apache/incubator-druid/pull/8305. Hopefully it fixes this issue. 
   
   Looking at [the stack trace you posted above](https://github.com/apache/incubator-druid/issues/7926#issuecomment-504055845), it looks like some old tasks have a wrong type of sequence number. Probably it would work if you delete those tasks from the metadata store manually.
   
   > It was running into these types of additional spots that required special handling that started me down the path that maybe consolidating the two classes into one would save some trouble given that they seem to be providing almost the same functionality:
   
   It was a single class before but has split into two classes since it was too easy to make mistakes. Several bugs have fixed in https://github.com/apache/incubator-druid/pull/7291, https://github.com/apache/incubator-druid/pull/7332, and https://github.com/apache/incubator-druid/pull/7339.

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