Viewing extract/replicat's read/write position and whether it's in recovery - must be in running:
send xxx status
Whether or not extract/replicat has processed all the records from the source
send xxx logend
Show checkpoint details
info xxx showch
Startup checkpoints: The first checkpoint that is made in the data source when the process starts.
Recovery checkpoints: The position in the data source of the record containing the oldest transaction not yet processed by Extract.
Current checkpoint: The position of the last record read by Extract in the data source. This should match the Log Read Checkpoint statistic shown in the summary and in the basic INFO EXTRACT command without options.
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