Block data error, reindexing blocks

1

Bitcoin QT finished syncing this weekend after d/l for Windows 7 on Thursday.

Today, probably 2nd or 3rd time running it, an error came up right away that index could not be found.

What would cause this to happen, and why would it have to reindex all the blocks on disk?

Thanks, Mike

Mike

Posted 2013-04-16T21:49:46.660

Reputation: 11

Did you recently do a non-clean shutdown? (Crash, power loss, etc) – Tom van der Woerdt – 2013-04-16T22:19:51.490

Running a rescan might help: http://bitcoin.stackexchange.com/a/7734/516

– Highly Irregular – 2013-04-17T01:15:40.287

-rescan checks for missing wallet transactions. The error here is because a database sanity check at startup fails, where the wallet isn't even touched yet. – Pieter Wuille – 2013-06-16T22:56:03.523

Answers

2

When I've had this happen it's been because of a non-clean shutdown. Something about the disk state ends up being inconsistent and this (understandably) results in the system wanting to verify all the information it has on disk.

David Ogren

Posted 2013-04-16T21:49:46.660

Reputation: 2 982

Asked: 2013-04-16T21:49:46.660

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Active: 2013-08-15T17:09:01.367