Client: Ability to Discard Bad HTable Puts
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Key: HBASE-3974
URL: https://issues.apache.org/jira/browse/HBASE-3974
Project: HBase
Issue Type: Bug
Components: client
Affects Versions: 0.90.3, 0.89.20100924, 0.92.0
Reporter: Nicolas Spiegelberg
Assignee: Nicolas Spiegelberg
Priority: Critical
Fix For: 0.90.4
While debugging an application consistency issue, we noticed that a single,
synchronous Put request threw a NoServerForRegionException but eventually
succeeded 90 seconds later. The problem is that failed put requests are not
actually removed from the HTable's writeBuffer. This makes sense for
asynchronous puts using setAutoFlush(false) but don't make sense for the
default case where we expect synchronous operation. We should discard all
failed puts for the synchronous case and provide an API so asynchronous
requests can have their failed puts cleared.
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