NUTCH-676 broke CrawlDbMerger
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Key: NUTCH-683
URL: https://issues.apache.org/jira/browse/NUTCH-683
Project: Nutch
Issue Type: Bug
Affects Versions: 1.0.0
Reporter: Doğacan Güney
Assignee: Doğacan Güney
Priority: Minor
Fix For: 1.0.0
Attachments: crawldbmerger_v2.patch
Switch to hadoop's MapWritable broke CrawlDbMerger. Part of the reason is that
we reuse the same MapWritable instance during reduce
which apparently is a big no-no for hadoop's MapWritable. Also, hadoop's
MapWritable#putAll doesn't work (I think.... see HADOOP-5142),
so we should also work around that.
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