After a test box filesystem had filled up.
Cleared down and checked Golden Gate for any issues.
One of the extracts had abended.
EXTRACT ABENDED OAM_X 00:00:00 00:30:03
020-07-06T10:26:37.295-0400 ERROR OGG-01416 Oracle GoldenGate Capture for Oracle, oam_x.prm: File ./dirdat/oam/et000003576, with format RELEASE 9.0/9.5, does not match current format specification of RELEASE 12.3. Modify the parameter file to specify format RELEASE 9.0/9.5 or issue ETROLLOVER prior to restart.
2020-07-06T10:26:37.360-0400 ERROR OGG-01668 Oracle GoldenGate Capture for Oracle, oam_x.prm: PROCESS ABENDING.
Quick search on the web and followed the instructions here :
OGG-01411 – Cannot convert input file ./dirdat/xx with format RELEASE 9.0/9.5 to output file ./dirdat/zz
[oracle@usze2qmbtora02 gghome_app]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 12.3.0.1.2 OGGCORE_12.3.0.1.0_PLATFORMS_171208.0005_FBO
Linux, x64, 64bit (optimized), Oracle 12c on Dec 9 2017 00:51:03
Operating system character set identified as UTF-8.
Copyright (C) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
GGSCI (usze2qmbtora02) 1> info OAM_X
EXTRACT OAM_X Last Started 2020-07-06 10:51 Status ABENDED
Checkpoint Lag 00:00:00 (updated 00:43:51 ago)
Log Read Checkpoint Oracle Redo Logs
2020-07-06 10:13:28 Seqno 1909, RBA 236535824
SCN 0.209622245 (209622245)
GGSCI (usze2qmbtora02) 2> stop OAM_X
EXTRACT OAM_X is already stopped.
GGSCI (usze2qmbtora02) 3> alter OAM_X etrollover
2020-07-06 10:58:28 INFO OGG-01520 Rollover performed. For each affected output trail of Version 10 or higher format, after starting the source extract, issue ALTER EXTSEQNO for that trail's reader (either pump EXTRACT or REPLICAT) to move the reader's scan to the new trail file; it will not happen automatically.
EXTRACT altered.
GGSCI (usze2qmbtora02) 4> alter OAM_X begin 2020-07-06 10:13:28
EXTRACT altered.
GGSCI (usze2qmbtora02) 5> start OAM_X
Sending START request to MANAGER ...
EXTRACT OAM_X starting
GGSCI (usze2qmbtora02) 6> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING OAM_X 00:45:17 00:00:14
GGSCI (usze2qmbtora02) 7> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING OAM_X 00:00:01 00:00:00
Strange why only the one extract failed - will investigate further.