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https://issues.apache.org/jira/browse/COUCHDB-1901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Lehnardt closed COUCHDB-1901.
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> Replicator needs to retry multipart requests atomically
> -------------------------------------------------------
>
> Key: COUCHDB-1901
> URL: https://issues.apache.org/jira/browse/COUCHDB-1901
> Project: CouchDB
> Issue Type: Bug
> Components: Replication
> Reporter: Adam Kocoloski
> Assignee: Adam Kocoloski
> Fix For: 1.5.0
>
>
> couch_replicator_httpc's retry mechanism interacts poorly with the multipart
> requests we use to transfer attachments during replication. In the case of
> PUTs, the replicator will retry a request even though it has already streamed
> part of the request body. For GETs, it can potentially interleave body data
> from the original response and the retried one.
> I put together a fix at https://github.com/cloudant/couch_replicator/pull/36
> that disables the default httpc client retry mechanism for multipart requests
> and manages the retry logic "atomically"; i.e., it retries the original GET
> request if the GET or PUT fails, and it ensures that the original GET request
> is properly terminated during the retry. I'll push a version of that patch
> to the Apache repo now.
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