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Old Version 7

changes.mady.by.user Vahid Hashemian

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New Version 8

changes.mady.by.user Vahid Hashemian

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

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

group.id=null (default)

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

group.id="" (specified by user)

InvalidGroupException (like before)
  • Until the next major release: Works like before (clients use the older version of OffsetCommit)
  • At the next major release: Results in INVALID_GROUP_ID error

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