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gilbertchen
2016-02-23 22:52:51 -05:00
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@@ -59,7 +59,7 @@ The first condition guarantees that if a backup procedure references a chunk bef
The second condition guarantees that any backup procedure unknown to the fossil deletion step can start only after the fossil collection step finishes. Therefore, if it references a chunk that was identified as fossil in the fossil collection step, it should observe the fossil, not the chunk, so it will upload a new chunk, according to the second fossil access rule. The second condition guarantees that any backup procedure unknown to the fossil deletion step can start only after the fossil collection step finishes. Therefore, if it references a chunk that was identified as fossil in the fossil collection step, it should observe the fossil, not the chunk, so it will upload a new chunk, according to the second fossil access rule.
Therefore, if a backup procedure references a chunk before the chunk is marked a fossil, the fossil deletion step will not Therefore, if a backup procedure references a chunk before the chunk is marked a fossil, the fossil deletion step will not
delete the chunk until it sees the backup procedure finishes (as indicated by the appearance of a new snapshot file uploaded to the storage). This ensure that senarios depicted in Figure 2 will never happen. delete the chunk until it sees the backup procedure finishes (as indicated by the appearance of a new snapshot file uploaded to the storage). This ensures that scenarios depicted in Figure 2 will never happen.
<p align="center"> <p align="center">
<img src="https://github.com/gilbertchen/duplicacy-beta/blob/master/images/fossil_collection_2.png?raw=true" <img src="https://github.com/gilbertchen/duplicacy-beta/blob/master/images/fossil_collection_2.png?raw=true"