$ sqdconf start /<SQDATA_VAR_DIR>/oracdc/oracdc.cab
SQDC019E Oracle Error (1291):ORA-01291: missing logfile ORA-06512: at "SYS.DBMS_LOGMNR", line 53 ORA-06512: at line 2 SQDC020I sqdconf terminated with Return Code 8, Reason Code=0x7002850b ()This occurs because the re-start SCN is actually before the range covered by the currently available redo log file. If you cannot make the necessary archive log available you will loose changed data. It will be necessary to reset the SCN of the capture agent to a later point that you determined is covered by available archive log files. Alternatively you can reset the SCN to 0 using the "sqdconf modify" and the capture agent will re-start from "current". Note, you must also issue the "sqdconf apply" before restarting for the SCN change to take effect.
In a production environment, where the Capture Agent is regularly monitored, this kind of extreme situation is very unlikely and would only occur if a capture agent remained in a stopped state for a significant amount of time.