Add option for datastore read rehashing #2904
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| @@ -23,6 +23,7 @@ var log = logging.Logger("blockstore") | |||
| var BlockPrefix = ds.NewKey("blocks") | |||
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| var ValueTypeMismatch = errors.New("The retrieved value is not a Block") | |||
| var ErrHashMismatch = errors.New("Block on disk has different hash than expected.") | |||
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- the block isn't neccessarily on disk, that's up to the datastore, isn't it? ;)
- IIRC no dot at the end. @RichardLitt dug up conventions for go error messages the other day
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Would be good to have an explicit default value for this in repo/config/init.go |
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
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| bs := bstore.NewBlockstore(n.Repo.Datastore()) | ||
| n.Blockstore, err = bstore.WriteCached(bs, kSizeBlockstoreWriteCache) | ||
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| rcfg, err := n.Repo.Config() |
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I can't comment on non-changed lines, so here: the other n.Repo.Config() in this function can probably be removed.
The error handling is a bit off here too. You're throwing away the error from bstore.WriteCached(), and you can omit the == nil check if you just move that thing to after the usual != nil check.
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I've screwed up here, the err != nil check should be after 134.
Then latter I am checking for err == nil as we are requesting con-fig only in case of online more.
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
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@lgierth thanks for looking at it, I made really stupid mistake there with error handling. |
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lets add a test where we purposely mess with the values in the blocks directory on disk and try to read the data through ipfs. |
| @@ -0,0 +1,37 @@ | |||
| #!/bin/sh | |||
| # | |||
| # Copyright (c) 2016 Mike Pfister | |||
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Someone credited in t0083. 😄
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
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circleCI seems to be taking a break, LGTM |
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@Kubuxu what was the actual bug resolved here? i think 2256 is incorrect |
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It was #2259 |
| rehash bool | ||
| } | ||
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| func (bs *blockstore) RuntimeHashing(enabled bool) { |
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- this is not a clear name, because there is runtime hashing regardless
- use:
HashOnRead
Resolves #2256
Enabled using
Datastore.HashOnRead: truein IPFS config.