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Posted to notifications@accumulo.apache.org by "An (JIRA)" <ji...@apache.org> on 2013/01/04 23:40:13 UTC
[jira] [Commented] (ACCUMULO-625) consider augmenting session state
with "breadcrumbs"
[ https://issues.apache.org/jira/browse/ACCUMULO-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544316#comment-13544316 ]
An commented on ACCUMULO-625:
-----------------------------
Hi is there any update on this or is there any kind of work around? Not being able to hold state in the iterator is a big limitation.
> consider augmenting session state with "breadcrumbs"
> ----------------------------------------------------
>
> Key: ACCUMULO-625
> URL: https://issues.apache.org/jira/browse/ACCUMULO-625
> Project: Accumulo
> Issue Type: Improvement
> Components: tserver
> Reporter: Eric Newton
> Assignee: Keith Turner
>
> Presently, the iterator stack can be created and destroyed at the whim of the tserver and its buffering needs. In complex iterations, lower-level iterators can make significant progress which is not inherently obvious in any returned key. When the iterator stack is re-created to continue a query, the last key returned is used to {{seek()}} the iterators. Lower-level iterators must re-scan their data to move back to the old position.
> Consider a mechanism to save progress beyond the last key returned.
>
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