2012-03-05 21:14:03 +00:00
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"recovery pass"
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the processing of a dfile by the vdad
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DATA_UNIT
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2012-03-11 01:51:07 +00:00
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int status (PRESENT, RECOVERABLE, UNRECOVERABLE)
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2012-03-06 04:53:38 +00:00
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bool keep_present
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2012-03-08 22:42:44 +00:00
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unit is currently PRESENT
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2012-03-06 04:53:38 +00:00
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keep enough descendant chunks on server so that
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this unit will be PRESENT after this pass
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2012-03-08 22:42:44 +00:00
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bool need_present
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unit is currently REC
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start enough uploads to make it PRESENT
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2012-03-05 21:14:03 +00:00
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META_CHUNK
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2012-03-11 01:51:07 +00:00
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bool need_reconstruct
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2012-03-06 04:53:38 +00:00
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decode this unit during this pass.
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2012-03-08 22:42:44 +00:00
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This is set only if some child is UNREC
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2012-03-11 01:51:07 +00:00
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bool needed_by_parent
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2012-03-05 21:14:03 +00:00
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this unit is needed to reconstruct parent.
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(don't delete it after reconstructing)
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2012-03-06 04:53:38 +00:00
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invariant: if need_reconstruct is set,
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then either needed_by_parent is set
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2012-03-08 22:42:44 +00:00
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or there are UNREC children
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2012-03-06 04:53:38 +00:00
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2012-03-05 21:14:03 +00:00
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CHUNK
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2012-03-06 04:53:38 +00:00
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bool present_on_server (from DB)
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bool new_present_on_server
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