[ https://issues.apache.org/jira/browse/NUTCH-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lewis John McGibbney updated NUTCH-1410: ---------------------------------------- Fix Version/s: 2.2 1.7 > impact of a map-reduce problem > ------------------------------ > > Key: NUTCH-1410 > URL: https://issues.apache.org/jira/browse/NUTCH-1410 > Project: Nutch > Issue Type: Bug > Components: fetcher, generator > Reporter: behnam nikbakht > Fix For: 1.7, 2.2 > > > with a simple test , found that each mapper or reducer have a local view of > variables. in Nutch, there are multiple places that share a variable between > mappers or reducers , for example in generate there is a shared variable : > hostCounts . or in fetcher , the last request time for each mapper > (fetcherThread) is different from another. > this problem cause critical problems like send multiple requests to same host > that cause to block. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira