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Posted to dev@zookeeper.apache.org by "maoling (JIRA)" <ji...@apache.org> on 2019/02/26 11:45:00 UTC
[jira] [Commented] (ZOOKEEPER-3290) Throw detailed KeeperException
when a transaction failed
[ https://issues.apache.org/jira/browse/ZOOKEEPER-3290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16777843#comment-16777843 ]
maoling commented on ZOOKEEPER-3290:
------------------------------------
[~Tison]
Just go ahead !
> Throw detailed KeeperException when a transaction failed
> --------------------------------------------------------
>
> Key: ZOOKEEPER-3290
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3290
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.5.4, 3.4.13
> Reporter: TisonKun
> Priority: Major
> Fix For: 3.5.5, 3.4.14
>
>
> Assume we execute the follow statements
> {code:java}
> ZooKeeper zk = ...;
> zk.multi(Arrays.asList(
> Op.check(path1, -1),
> Op.delete(path2, -1)));
> {code}
> If path1 or path2 didn't exist, we got an exception {{KeeperException.NoNodeException}} without which of them doesn't exist.
> The reason is when we executed {{PrepRequestProccessor#pRequest}} in {{PrepRequestProccessor#L804}}, it processed {{KeeperException.NoNodeException}} which contained path info.
> However, we generated {{ErrorTxn}} which only contains {{err}} field represented error code and lost path info. Maybe a reasonable resolution is extend {{ErrorTxn}} to contain path info or a general {{data}} byte array.
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