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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (CASSANDRA-1189) Refactor streaming
Date Wed, 23 Jun 2010 20:37:52 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12878736#action_12878736
] 

Stu Hood edited comment on CASSANDRA-1189 at 6/23/10 4:36 PM:
--------------------------------------------------------------

AntiEntropyService.RepairSession in trunk and 0.6 only has a local view, so it can't know
when other nodes have finished streaming data for repairs: it only blocks until streaming
has started.

EDIT: After 1190, what this requirement will boil down to is "make StreamIn.requestRanges
return a Future".
EDIT2: If it isn't out of scope, making StreamIn.requestRanges take an optional column family
argument would help as well.

      was (Author: stuhood):
    AntiEntropyService.RepairSession in trunk and 0.6 only has a local view, so it can't know
when other nodes have finished streaming data for repairs: it only blocks until streaming
has started.

EDIT: After 1190, what this requirement will boil down to is "make StreamIn.requestRanges
return a Future".
  
> Refactor streaming
> ------------------
>
>                 Key: CASSANDRA-1189
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1189
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.7
>            Reporter: Gary Dusbabek
>            Assignee: Gary Dusbabek
>            Priority: Critical
>             Fix For: 0.7
>
>
> The current architecture is buggy because it makes the assumption that only one stream
can be in process between two nodes at a given time, and stream send order never changes.
 Because of this, the ACK process gets fouled up when other services wish to stream files.
> The process is somewhat contorted too (request, initiate, initiate done, send).

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