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Posted to issues@kudu.apache.org by "Andrew Wong (Jira)" <ji...@apache.org> on 2019/11/21 03:44:00 UTC

[jira] [Created] (KUDU-3004) retain a history of PathSetPBs when updating directories

Andrew Wong created KUDU-3004:
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             Summary: retain a history of PathSetPBs when updating directories
                 Key: KUDU-3004
                 URL: https://issues.apache.org/jira/browse/KUDU-3004
             Project: Kudu
          Issue Type: Improvement
          Components: fs
            Reporter: Andrew Wong


Currently, {{kudu fs update_dirs}} will wipe away the existing PathSetPBs (i.e. those in the {{block_manager_instance}} files) and writes new ones that are representative of whatever the user has input as the new set of data directories. It'd be nice if we could retain a history of the PathSetPBs so we can more easily debug how and why a PathSetPB looks the way it does.

Adar and I chatted about this, about perhaps switching the {{path_set}} field of {{PathInstanceMetadataPB}} to be repeated.



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