expdp fails with ORA-31693 and ORA-01555
Hi,
I am using Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi on hp-ux
I am exporting the DB as follow :
expdp system/password \
full=y \
dumpfile=backup_dir:expdp_$ORACLE_SID.dmp \
logfile=backup_dir:expdp_$ORACLE_SID.log \
exclude=statistics \
estimate=statistics \
flashback_time=\"TO_TIMESTAMP\(\'$DATE_EXP\', \'YYYY-MM-DD HH24:MI:SS\'\)\"
it always worked fine but this morning I received an error message :
ORA-31693: Table data object "DFE"."TGV_CONTROLE" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-01555: snapshot too old: rollback segment number 1 with name "_SYSSMU1$" too small
ORA-00604: error occurred at recursive SQL level 3
ORA-08180: no snapshot found based on specified time
ORA-06512: at "SYS.TIMESTAMP_TO_SCN", line 1
ORA-00604: error occurred at recursive SQL level 3
ORA-08180: no snapshot found based on specified time
any idea of what may causes this error ?
thanks