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NUTCH-3141 Cache Hadoop Counter References in Hot Paths - #878
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sebastian-nagel
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Jan 8, 2026
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Thanks, @lewismc! Looks good to me.
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This is a patch for NUTCH-3141. The cache pattern is already implemented in FetcherThread so this PR introduces more consistency across the codebase.
Additionally, I discovered some classes (SitemapProcessor.java, CrawlDb.java and DeduplicationJob.java) still used hardcoded strings to lookup counters, so I replaced these instances with NutchMetrics constants for a cleaner consistent implementation.