[GitHub] [hadoop] Hexiaoqiao commented on issue #1028: HDFS-14617 - Improve fsimage load time by writing sub-sections to the fsimage index

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Hexiaoqiao commented on issue #1028: HDFS-14617 - Improve fsimage load time by writing sub-sections to the fsimage index
URL: https://github.com/apache/hadoop/pull/1028#issuecomment-517991426
 
 
   > And we should make sure oiv tool works with this change. We can file another jira to address the oiv issue.
   
   @jojochuang Thanks for your suggestions,  current patch @sodonnel submitted seems not include OIV tools, And I agree that we should file another JIRA to trace it. I would like to file it, and help to trace it if @sodonnel have no times. FYI.
   Another side, I wonder if we should supply some other tools or compatible upgrade to cover the case when parallel loading fail, then fallback to old serial loading with new FSImage format. I do not doubt the parallel loading feature, just want to give more choice to users.
   Consider that when parallel loading failed due to some exception with new FSImage format, user could have no proper way to fallback even using OIV tools to transfer other format.

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