Tried rolling restart of cassandra service on all nodes ( not restart of node but restart of cassandra service)
12 Node Cassandra 3.10 cluster

nodetool repair -full keyspace_name or nodetool repair -pr keyspace_name

72982786208715,-7007261331941750011], (-3514950151771522611,-3511931201676521965], (-6299649132832176250,-6285080008066046713], (-4853608930910373910,-4841117967815425103], (-2436806990334651809,-2436021852308436224], (-2883024089655858054,-2874005932696492793], (-2527265385823120792,-2506125353229105939], (3901623410937971039,3911610256959435577], (4730274347221170900,4749586610106125846]]] Validation failed in /10.204.72.195 (progress: 0%)

^C
When I did nodetool repair -pr , it completed 7% then I saw Validation failed error and it just halts there and no progress is made.
/var/log/cassandra/system.log shows

WARN  [Native-Transport-Requests-3] 2024-08-15 05:49:06,342 BatchStatement.java:301 - Batch for [ncl.asct_originator_map] is of size 5.176KiB, exceeding specified threshold of 5.000KiB by 0.176KiB.
WARN  [Native-Transport-Requests-3] 2024-08-15 05:49:06,427 BatchStatement.java:301 - Batch for [ncl.asct_originator_map] is of size 5.176KiB, exceeding specified threshold of 5.000KiB by 0.176KiB.
WARN  [Native-Transport-Requests-1] 2024-08-15 05:49:06,523 BatchStatement.java:301 - Batch for [ncl.asct_originator_map] is of size 5.176KiB, exceeding specified threshold of 5.000KiB by 0.176KiB.
WARN  [Native-Transport-Requests-4] 2024-08-15 05:49:06,701 BatchStatement.java:301 - Batch for [ncl.asct_originator_map] is of size 5.176KiB, exceeding specified threshold of 5.000KiB by 0.176KiB.