Try to run backfill but there is no collector.log created on collector.

try run this step but nosuccess

1) Stop the collector service:

opt/dpa/etc/dpa stop

2) Rename /var/tmp/dpa_collector.pfile and /var/tmp/dpa_collector_repq.pfile to .old

3) Start the collector:

opt/dpa/etc//dpa start