private void generateBothEventOffsets(TXState txState) {
    assert farSideEventOffset == -1;
    farSideEventOffset = generateEventOffset(txState);
    generateNearSideEventOffset(txState);
  }
Generate offsets for different eventIds; one for nearside and one for farside for the ops for
this entry.

@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/internal/cache/TXEntryState.java