ZanderXu commented on PR #6696:
URL: https://github.com/apache/hadoop/pull/6696#issuecomment-2044641581

   > For sync edit logging, it may cause corruption by interspersing edits with 
the end/start segment edits.
   
   As HDFS-13112 said rollEdits is not thread-safe, so it added hasReadLock(). 
But if we can make rollEdits thread-safe, DelegationTokenSecretManager can not 
use FSLock. We can mark it as a improvement and complete in milestone II.


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