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Posted to dev@couchdb.apache.org by "Randall Leeds (JIRA)" <ji...@apache.org> on 2011/05/18 23:52:47 UTC
[jira] [Created] (COUCHDB-1170) include attachment md5 sums in
_attachments
include attachment md5 sums in _attachments
-------------------------------------------
Key: COUCHDB-1170
URL: https://issues.apache.org/jira/browse/COUCHDB-1170
Project: CouchDB
Issue Type: Bug
Components: HTTP Interface
Affects Versions: 1.0.2
Reporter: Randall Leeds
Priority: Minor
Fix For: 1.1
Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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[jira] [Commented] (COUCHDB-1170) include attachment md5 sums in
_attachments
Posted by "Jason Smith (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COUCHDB-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13036092#comment-13036092 ]
Jason Smith commented on COUCHDB-1170:
--------------------------------------
Paul, I will reply to you in COUCHDB-687.
> include attachment md5 sums in _attachments
> -------------------------------------------
>
> Key: COUCHDB-1170
> URL: https://issues.apache.org/jira/browse/COUCHDB-1170
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.0.2
> Reporter: Randall Leeds
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
>
>
> Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
> Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
> As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
> To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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[jira] [Commented] (COUCHDB-1170) include attachment md5 sums in
_attachments
Posted by "Paul Joseph Davis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COUCHDB-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035729#comment-13035729 ]
Paul Joseph Davis commented on COUCHDB-1170:
--------------------------------------------
I don't really have anything against show the checksum, though I might take md5 out of the name in case we ever decide to change the hash algorithm.
As to replication, do we short circuit attachment updates based on md5 somewhere? I haven't spent the time reading through the new replicator yet but I would've thought I'd heard of that bit.
> include attachment md5 sums in _attachments
> -------------------------------------------
>
> Key: COUCHDB-1170
> URL: https://issues.apache.org/jira/browse/COUCHDB-1170
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.0.2
> Reporter: Randall Leeds
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
>
>
> Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
> Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
> As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
> To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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[jira] [Commented] (COUCHDB-1170) include attachment md5 sums in
_attachments
Posted by "Randall Leeds (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COUCHDB-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035723#comment-13035723 ]
Randall Leeds commented on COUCHDB-1170:
----------------------------------------
Shoot. Just saw COUCHDB-687 and relevant discussion there about complications. Resolving this as a duplicate and moving my efforts there.
> include attachment md5 sums in _attachments
> -------------------------------------------
>
> Key: COUCHDB-1170
> URL: https://issues.apache.org/jira/browse/COUCHDB-1170
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.0.2
> Reporter: Randall Leeds
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
>
>
> Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
> Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
> As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
> To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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[jira] [Resolved] (COUCHDB-1170) include attachment md5 sums in
_attachments
Posted by "Randall Leeds (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COUCHDB-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Randall Leeds resolved COUCHDB-1170.
------------------------------------
Resolution: Duplicate
> include attachment md5 sums in _attachments
> -------------------------------------------
>
> Key: COUCHDB-1170
> URL: https://issues.apache.org/jira/browse/COUCHDB-1170
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.0.2
> Reporter: Randall Leeds
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
>
>
> Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
> Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
> As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
> To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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[jira] [Updated] (COUCHDB-1170) include attachment md5 sums in
_attachments
Posted by "Randall Leeds (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COUCHDB-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Randall Leeds updated COUCHDB-1170:
-----------------------------------
Attachment: 0001-include-md5sum-field-in-_attachments-entries.patch
> include attachment md5 sums in _attachments
> -------------------------------------------
>
> Key: COUCHDB-1170
> URL: https://issues.apache.org/jira/browse/COUCHDB-1170
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.0.2
> Reporter: Randall Leeds
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
>
>
> Crucial to functioning replication is deterministic revisions. Attachment md5 sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
> Alternative CouchDB implementations may find it impossible or impractical to support binary attachments yet still wish to track changes and replicate efficiently with Apache CouchDB. To this end, such implementations need an efficient way to fetch all metadata necessary for calculating compatible revisions in the event of locally executed future updates.
> As a bonus, exposing this metadata is particularly beneficial for filesystem sync tools (such as couchapp implementations), e.g. through eliminating the need for redundantly storing checksums as user data on synchronized documents.
> To this end I propose the following 5-line patch which applies cleanly to trunk, 1.1.x and 1.0.x.
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