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https://issues.apache.org/jira/browse/HBASE-9093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13724952#comment-13724952
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Hari Shreedharan commented on HBASE-9093:
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[~lhofhansl] - Thanks for your feedback. I am not against
removing/upgrading/updating APIs. The only thing I am requesting is to
deprecate the old API and keep them around long enough for downstream
projects/users to upgrade to the versions of HBase where these APIs are
removed.
In this case, if setWriteToWal method was deprecated in 0.94 and then removed
in 0.96, we would have made every effort to make sure we use the new
setDurability API by the time HBase 0.96 is released (hopefully by then, most
users would be using at least 0.94 where both APIs would have been available).
>From the javadoc, it does not look like hbase 0.94 supported the setDurability
>API though.
>(http://hbase.apache.org/0.94/apidocs/org/apache/hadoop/hbase/client/Put.html
>- is there a newer one?)
> Hbase client API: Restore the writeToWal method
> -----------------------------------------------
>
> Key: HBASE-9093
> URL: https://issues.apache.org/jira/browse/HBASE-9093
> Project: HBase
> Issue Type: Bug
> Components: Client, Usability
> Affects Versions: 0.95.0
> Reporter: Hari Shreedharan
> Fix For: 0.98.0, 0.95.2
>
> Attachments: HBASE-9093.patch, HBASE-9093.patch, HBASE-9093.patch
>
>
> The writeToWal is used by downstream projects like Flume to disable writes to
> WAL to improve performance when durability is not strictly required. But
> renaming this method to setDurability forces us to use reflection to support
> hbase versions < 95 - which in turn hits performance, as this method needs to
> be called on every single write. I recommend adding the old method back as
> deprecated and removing it once hbase-95/96 becomes the popular version used
> in prod.
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