Recovery Systems: Checkpointing and Shadow Paging

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Recovery Systems: Checkpointing and Shadow Paging

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Күн бұрын

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Пікірлер: 24

@mysterious_billionaire 8 жыл бұрын

shadow paging starts at 15:15

@mihir469 8 жыл бұрын

Thanks

@vighnesh32 8 жыл бұрын

thanks !

@farzeb1198 5 жыл бұрын

😂😂😂😂😂

@BS-eu9do 8 ай бұрын

Thank you 👍

@1020gagan 6 жыл бұрын

miny miny miny miny thanks :P

@farzeb1198 5 жыл бұрын

😂😅😂😂😂😂

@JohnDoe-kj2cs 2 жыл бұрын

Jai Shree Ram

@rajkolu3117 5 жыл бұрын

Excellent sir Really easily understood. Thank u sir

@HimanshuKumar_24 6 жыл бұрын

Thank you so much, very well explained, to the point.

@LearningCS-jp4cb 11 ай бұрын

T2 was added because it was never committed

@rishabhgarg7388 5 жыл бұрын

How atomicity is maintained in this scheme(check pointing) because the operations which appears before checkpoint address being done permanently and operations after checkpoint of active transaction are undone. So some part of active transactions is done and some doesn't. Please clarify.

@saketdhakar8147 Жыл бұрын

did anyone got any answer for this doubt?

@s1vc4n 8 жыл бұрын

Good explanation. Thanks.

@herahassan2818 6 жыл бұрын

amazing. best explained

@farzeb1198 5 жыл бұрын

Wanna have idea about check points characteristics

@LearningCS-jp4cb 11 ай бұрын

Can someone tell does it matter if undo list is done before redo list or vice versa?

@ahbarahad3203 8 ай бұрын

You have to do undo list first

@darkexodus6404 2 жыл бұрын

At 12:36 for T3, why A = 9? Shouldn't it be A = 1 ?

@ajaykumarsoni31 2 жыл бұрын

Because T3 has committed after checkpoint so need to be redo.

@bestpaawanful 7 жыл бұрын

T2 and then T4. Isnt it??

@biginepallinagasai4403 4 жыл бұрын

In this explanation, 8:33 it is provided that all the transactions in the undo list will be undone in the reverse order but while solving the problem it was not taken into consideration.

@tanieadas 3 жыл бұрын

@@biginepallinagasai4403 Reverse with respect to log records order not the list order. There is no wrong in the solution.