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Code Block
{
  "type": "data",
  "name": "MirrorPidResetRecord",
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "Version", "type": "int16", "versions": "0",
      "about": "The version of the mirror PID reset record."},
    { "name": "SourceClusterId", "type": "string", "versions": "0",
      "about": "The source cluster UUID for verification."},
    { "name": "TimestampMs", "type": "int64", "versions": "0",
      "about": "Wall-clock time when the barrier was written."}
  ]
}

When ProducerStateManager encounters a MIRROR_PID_RESET batch during normal append or during recovery (LogSegment.recover replays all batches):                                                                                                                                                          

...