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FeedParserBolt: metadata added by parse filters not passed forward in topology #541

sebastian-nagel opened this Issue Mar 5, 2018 · 2 comments


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sebastian-nagel commented Mar 5, 2018

FeedParserBolt does not pass the metadata add by parse filters forward in the topology. AdaptiveFetchSchedule does not recognize anymore whether a feed has change by signature comparison (cc/news-crawl#19). f344f4b has changed the way metadata is passed to the parsefilters in FeedParserBolt and SiteMapParserBolt while tika and jsoup parsers still work on the Metadata object directly (set by parseData.setMetadata(metadata))


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jnioche commented Mar 6, 2018

thanks @sebastian-nagel. the shortcut parse.put(url, metadata) creates a new instance of metadata under the bonnet and copies the values from the original metadata which indeed causes a problem aswe use and return the latter further down the code. Will fix this now.

@jnioche jnioche added bug core labels Mar 6, 2018

@jnioche jnioche added this to the 1.8 milestone Mar 6, 2018

@jnioche jnioche self-assigned this Mar 6, 2018

@jnioche jnioche closed this in 5b64f4e Mar 6, 2018


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sebastian-nagel commented Mar 6, 2018

Thanks, @jnioche!

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