Hi Zoltán, > Nutch 1.13 build depends on Hadoop 2.7.2
That's defined in ivy/ivy.xml at <!-- Hadoop Dependencies --> <dependency org="org.apache.hadoop" name="hadoop-common" rev="2.7.2" conf="*->default"> ... Change the version here (and in the following lines for "hadoop-hdfs" etc.) and build with ant clean runtime test I wouldn't expect problems. If yes, please, open a Jira issue to upgrade. In general, it's little work to adapt Nutch to a different minor Hadoop version. > some 2.2.0 hits the `lib` directory as well under the `build` Please, open a Jira issue to exclude this Hadoop version. It's probably a dependency of a dependency... Best, Sebastian On 07/19/2017 09:34 PM, Zoltán Zvara wrote: > Hi Community, > > Nutch 1.13 build depends on Hadoop 2.7.2 and some 2.2.0 hits the `lib` > directory as well under the `build`. However, we use Hadoop 2.8.0 currently. > I've found no traces in the ant build to define the Hadoop version, so I've > just changed every instance of 2.7.2 to 2.8.0. Everything works fine now. > Moreover, 2.2.0 libraries still messed with the class-loader, raising errors > on object casts. Is there any way to specify the Hadoop version in the ant > build? Thanks. > > Best, > Zoltán >

