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Posted to dev@flume.apache.org by "Peter Newcomb (Updated) (JIRA)" <ji...@apache.org> on 2012/02/07 19:15:01 UTC
[jira] [Updated] (FLUME-935) Create abstract implementations of
basic channel/transaction semantics
[ https://issues.apache.org/jira/browse/FLUME-935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Peter Newcomb updated FLUME-935:
--------------------------------
Status: Patch Available (was: Open)
New patch addresses all comments to date.
> Create abstract implementations of basic channel/transaction semantics
> ----------------------------------------------------------------------
>
> Key: FLUME-935
> URL: https://issues.apache.org/jira/browse/FLUME-935
> Project: Flume
> Issue Type: Improvement
> Components: Channel
> Affects Versions: v1.0.0
> Reporter: Peter Newcomb
> Assignee: Peter Newcomb
> Priority: Minor
> Fix For: v1.1.0
>
>
> Correctly executing or checking the state transitions for channels and transactions is nontrivial. It would be helpful to have a correct implementation of each that can be used either directly or as a reference when creating new channels or clients of channels.
> Specifically, on the client side it would be nice to package the try { begin() ... commit() } catch { rollback() } finally { close() } code, with all the appropriate exception propagation and logging code, so that it need not be repeated constantly.
> On the channel side, it'd be nice to have a packaged implementation of the implied ThreadLocal semantics of the Transaction class, along with Preconditions checking to make sure that clients follow the try { begin() ... commit() } catch { rollback() } finally { close() } pattern.
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