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https://issues.apache.org/jira/browse/HADOOP-12057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14681625#comment-14681625
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David Dobbins commented on HADOOP-12057:
----------------------------------------
The sahara version of the swiftfs code lives in the
[sahara-extra|http://github.com/openstack/sahara-extra] repository, which
contains [this|https://github.com/openstack/sahara-extra/blob/master/LICENSE]
Apache 2.0 license. Since it was contributed to OpenStack, original contributor
rights were surrendered to the OpenStack Foundation, per their [Contributor
License Agreement|https://review.openstack.org/static/cla.html].
> swiftfs rename on partitioned file attempts to consolidate partitions
> ---------------------------------------------------------------------
>
> Key: HADOOP-12057
> URL: https://issues.apache.org/jira/browse/HADOOP-12057
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/swift
> Reporter: David Dobbins
> Assignee: David Dobbins
> Attachments: HADOOP-12057-006.patch, HADOOP-12057-008.patch,
> HADOOP-12057.007.patch, HADOOP-12057.patch, HADOOP-12057.patch,
> HADOOP-12057.patch, HADOOP-12057.patch, HADOOP-12057.patch
>
>
> In the swift filesystem for openstack, a rename operation on a partitioned
> file uses the swift COPY operation, which attempts to consolidate all of the
> partitions into a single object. This causes the rename to fail when the
> total size of all the partitions exceeds the maximum object size for swift.
> Since partitioned files are primarily created to allow a file to exceed the
> maximum object size, this bug makes writing to swift extremely unreliable.
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