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Posted to dev@zookeeper.apache.org by "JiangJiafu (JIRA)" <ji...@apache.org> on 2017/05/17 02:09:04 UTC
[jira] [Commented] (ZOOKEEPER-1167) C api lacks synchronous version
of sync() call.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013402#comment-16013402 ]
JiangJiafu commented on ZOOKEEPER-1167:
---------------------------------------
I have read all the comments above, but I don't get the point.
In what kind of scenarios will this BUG cause a problem? It seems like this bug is not going to be fixed in 3.4.X version, why?
> C api lacks synchronous version of sync() call.
> -----------------------------------------------
>
> Key: ZOOKEEPER-1167
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1167
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.3.3, 3.4.3, 3.5.0
> Reporter: Nicholas Harteau
> Assignee: Marshall McMullen
> Fix For: 3.5.4, 3.6.0
>
> Attachments: ZOOKEEPER-1167.patch
>
>
> Reading through the source, the C API implements zoo_async() which is the zookeeper sync() method implemented in the multithreaded/asynchronous C API. It doesn't implement anything equivalent in the non-multithreaded API.
> I'm not sure if this was oversight or intentional, but it means that the non-multithreaded API can't guarantee consistent client views on critical reads.
> The zkperl bindings depend on the synchronous, non-multithreaded API so also can't call sync() currently.
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