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https://issues.apache.org/jira/browse/HBASE-7481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559387#comment-13559387
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Lars Hofhansl commented on HBASE-7481:
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We'd like that in 0.94. It would change the filter API, but we never said it is
a stable public just like we don't say that for coprocessors (and frankly
without this it's hard to write useful custom filters, because you cannot
control failure behavior).
A patch here would involve adding a {{throws IOException}} clause to every
Filter method.
(And actually that does not mean that implementations (or subclasses in trunk)
have to declare that throws clause as well).
> throw IOExceptions from Filter methods?
> ---------------------------------------
>
> Key: HBASE-7481
> URL: https://issues.apache.org/jira/browse/HBASE-7481
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
>
> Currently there is no way to throw custom IOExceptions from any of the filter
> methods.
> For implementers of custom filters that presents a problem.
> For example there are scenarios where the filter would want to indicate to
> the client that there it should not retry. Currently there is no way of doing
> that.
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