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https://issues.apache.org/jira/browse/CASSANDRA-8446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremy Hanna updated CASSANDRA-8446:
Labels: LWT (was: )
> Lost writes when using lightweight transactions
> ---
>
> Key: CASSANDRA-8446
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8446
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Environment: Cassandra 2.1.2 on Java(TM) SE Runtime Environment
> (build 1.7.0_65-b17)
>Reporter: Jochen Zeischka
>Priority: Major
> Labels: LWT
> Fix For: 2.1.5
>
>
> There's a serious problem when using lightweight transactions. Whenever th
> cluster gets any load, write timeout exceptions start to occur and the client
> has no way to know whether the write actually succeeded or not.
> I a simple test (https://gist.github.com/anonymous/4c83f2962b57fce4c3df) this
> results in large percentages of lost writes (0 - 50%, depending on the load).
> The problem was described in
> https://stackoverflow.com/questions/27313360/how-can-we-avoid-losing-writes-when-using-lightweight-transactions-cas-in-cass
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