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https://issues.apache.org/jira/browse/HDFS-13022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16354562#comment-16354562
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Elek, Marton commented on HDFS-13022:
-------------------------------------
Moving back to PATCH_AVAILABLE. This is the last version, with some minor
changes:
* I created separated thread for the kubernetes watcher
* I improved the filter of the event handling (only the PVCs with the right
annotations are handled)
* I improved the exception handling (the timeout exception is normal as the
wather uses long polling)
> Block Storage: Kubernetes dynamic persistent volume provisioner
> ---------------------------------------------------------------
>
> Key: HDFS-13022
> URL: https://issues.apache.org/jira/browse/HDFS-13022
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: HDFS-7240
> Affects Versions: HDFS-7240
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Priority: Major
> Attachments: HDFS-13022-HDFS-7240.001.patch,
> HDFS-13022-HDFS-7240.002.patch, HDFS-13022-HDFS-7240.003.patch,
> HDFS-13022-HDFS-7240.004.patch
>
>
> {color:#FF0000}{color}
> With HDFS-13017 and HDFS-13018 the cblock/jscsi server could be used in a
> kubernetes cluster as the backend for iscsi persistent volumes.
> Unfortunatelly we need to create all the required cblocks manually with 'hdfs
> cblok -c user volume...' for all the Persistent Volumes.
>
> But it could be handled with a simple optional component. An additional
> service could listen on the kubernetes event stream. In case of new
> PersistentVolumeClaim (where the storageClassName is cblock) the cblock
> server could create cblock in advance AND create the persistent volume could
> be created.
>
> The code is very simple, and this additional component could be optional in
> the cblock server.
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