Re: [PR] HDDS-8830. Add admin CLI to list open files [ozone]

["smengcl (via GitHub)" <gi...@apache.org>]

smengcl commented on PR #5920:
URL: https://github.com/apache/ozone/pull/5920#issuecomment-1879463260

   > You can check out OmMetadataManagerImpl.getExpiredOpenKeys()
   > 
   > https://github.com/apache/ozone/blob/f4a3b0e64c0cb3f2debaded68dcc0b7573602837/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OmMetadataManagerImpl.java#L1808
   > 
   > 
   > to see how we tell a key has hsync or not. You shouldn't need to walk through the keyTable.
   
   As I can see it is using the same approach as mine to check whether a key is hsync'ed or not. AFAIK the metadata tag is the only way to do it at the moment. Plus `getExpiredOpenKeys` looks to be iterating over the entire `KeyTable`/`FileTable`.
   
   Again, the problem is that `OpenKeyTable` doen't have this metadata tag at all. If we can add that it will be much more efficient (both for `getExpiredOpenKeys` and this PR).


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