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https://issues.apache.org/jira/browse/WAVE-399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13859887#comment-13859887
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Yuri Zelikov commented on WAVE-399:
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I thinks it is only these two. But we need to pay attention to semantics of the
method invocation:
* Blocking call to append deltas to the end of the delta history.
* If the call returns normally (doesn't throw an exception), then
* the deltas have been successfully and "durably" stored, that is,
* the method forces the data to disk.
Especially to "the deltas have been successfully and "durably" stored, that is,
the method forces the data to disk". I.e. we need to ensure that deltas are
reliably stored by MongoDB after the call returns, I think MongoDB didn't
support such feature couple of years ago.
Also, I am not sure that we want to leave these methods blocking.
> Mongodb delta store
> -------------------
>
> Key: WAVE-399
> URL: https://issues.apache.org/jira/browse/WAVE-399
> Project: Wave
> Issue Type: Improvement
> Reporter: Frank Ren
>
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