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Old Version 15

changes.mady.by.user Vahid Hashemian

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compared with

New Version 16

changes.mady.by.user Vahid Hashemian

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When using subscribe(...)
(group management)

When using assign(...)
(standalone consumer)

group.id=null (new default)

InvalidGroupException
  • Cannot fetch offsets (uses auto.offset.reset config if no current offset is available)
  • Cannot commit offsets (enable.auto.commit is automatically set to false)

group.id="" (specified by user)

(like before)InvalidGroupException
  • Can fetch (last committed) offset
  • Can seek to specific offset
  • Can fetch from specific offset
  • Can commit offset
(like before)


Client Side Deprecation

The use of empty group id will be deprecated on the client. A warning log will appear on clients that use this group id. 

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