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shorter chunker stragety and fixed size example with fewer nodes

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License: MIT
Signed-off-by: Enrique Erne <enrique.erne@gmail.com>
This commit is contained in:
Enrique Erne
2017-10-28 21:06:39 +02:00
parent 31840fa035
commit 6a9682bb00
1 changed files with 13 additions and 14 deletions
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27
core/commands/add.go
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@ -72,29 +72,28 @@ You can now refer to the added file in a gateway, like so:
/ipfs/QmaG4FuMqEBnQNn3C8XJ5bpW8kLs7zq2ZXgHptJHbKDDVx/example.jpg
The chunker option, '-s', defines the chunking strategy for how
ipfs puts larger files into blocks. Blocks with same content can
The chunker option, '-s', specifies the chunking strategy that dictates
how to break files into blocks. Blocks with same content can
be deduplicated. The default is a fixed block size of
256 * 1024 bytes, 'size-262144'. Alternatively, you can use the
rabin chunker for content defined chunking by specifying
rabin-[min]-[avg]-[max] (where min/avg/max refer to the resulting
rabin-[min]-[avg]-[max] (where min/avg/max refer to the resulting
chunk sizes). Using other chunking strategies will produce
different hashes for the same file.
> ipfs add --chunker=size-1024 ipfs-logo.svg
added QmZ9KNxxeeLCPrdceBjvVcmSyLbUWMF4ceKDP8yboLNoHT ipfs-logo.svg
> ipfs add --chunker=rabin-128-256-2048 ipfs-logo.svg
added QmQN64Mbj1WK8wAej5MoFkHkD3aTtSGzGnAFXomdVHNNhs ipfs-logo.svg
> ipfs add --chunker=size-2048 ipfs-logo.svg
added QmafrLBfzRLV4XSH1XcaMMeaXEUhDJjmtDfsYU95TrWG87 ipfs-logo.svg
> ipfs add --chunker=rabin-512-1024-2048 ipfs-logo.svg
added Qmf1hDN65tR55Ubh2RN1FPxr69xq3giVBz1KApsresY8Gn ipfs-logo.svg
You can now check what blocks have been created by:
> ipfs object links QmQN64Mbj1WK8wAej5MoFkHkD3aTtSGzGnAFXomdVHNNhs
Qmb3Wzsmy9RXkyQhERdPd93mBP2jTRUjgVBwx5yWJR5b6k 223
Qmc7ikMLM1SS88YxxogRtjAyuLLfR85ZDKjfy7ahZYD38h 141
QmeUiJHEXZnEwjpCfUUSkDuXFk2nuT6gALCeUXtZkRvcbj 858
QmWwiQMNhpjq9kFUiuFbSQoqrQNTVjwo1wgbbx8wPr9PjB 1040
QmNPg3SUphwfoJwveDyMRjDDaoitTCE7g9UUqYod8gPwz5 431
QmPzBVWJtMPdeaoJK55rua7LgbEsjHseMHsUSUrPJ3AncS 278
> ipfs object links QmafrLBfzRLV4XSH1XcaMMeaXEUhDJjmtDfsYU95TrWG87
QmY6yj1GsermExDXoosVE3aSPxdMNYr6aKuw3nA8LoWPRS 2059
Qmf7ZQeSxq2fJVJbCmgTrLLVN9tDR9Wy5k75DxQKuz5Gyt 1195
> ipfs object links Qmf1hDN65tR55Ubh2RN1FPxr69xq3giVBz1KApsresY8Gn
QmY6yj1GsermExDXoosVE3aSPxdMNYr6aKuw3nA8LoWPRS 2059
QmerURi9k4XzKCaaPbsK6BL5pMEjF7PGphjDvkkjDtsVf3 868
QmQB28iwSriSUSMqG2nXDTLtdPHgWb4rebBrU7Q1j4vxPv 338
`,
},