As part of upgrade from 12cR1 to 19c applying patch 28553832.
Patch gets applied successfully but when trying to start the clsuterware using ./rootcrs.sh -postpatch the command fails with below messages
RS-2883: Resource 'ora.cssdmonitor' failed during Clusterware stack start.
CRS-4406: Oracle High Availability Services synchronous start failed.
CRS-4000: Command Start failed, or completed with errors.
2021/01/01 18:23:57 CLSRSC-117: Failed to start Oracle Clusterware stack
ERROR:
Died at /u01/app/12.0.0/grid/opatchautocfg/db/dbtmp/bootstrap_rac1/patchwork/crs/install/crspatch.pm line 946.
can someone help me identify the problem in here.
Thanks,
Kiran