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Peter Somogyi commented on HBASE-19968: --------------------------------------- I ran the test with and without the patch and both passed. How did you ran into this problem? {{mvn clean install -pl hbase-mapreduce -Dhadoop.profile=3.0 -Dtest=TestTableSnapshotInputFormat}} > MapReduce test fails with NoClassDefFoundError against hadoop3 > -------------------------------------------------------------- > > Key: HBASE-19968 > URL: https://issues.apache.org/jira/browse/HBASE-19968 > Project: HBase > Issue Type: Bug > Reporter: Ted Yu > Assignee: Ted Yu > Priority: Major > Attachments: 19968.v1.txt > > > When running mapreduce tests against hadoop3, I observed the following: > {code} > [ERROR] > testWithMockedMapReduceSingleRegion(org.apache.hadoop.hbase.mapred.TestTableSnapshotInputFormat) > Time elapsed: 0.024 s <<< ERROR! > java.lang.NoClassDefFoundError: > org/apache/hadoop/hdfs/server/blockmanagement/BlockInfo > at > org.apache.hadoop.hbase.mapred.TestTableSnapshotInputFormat.testWithMockedMapReduce(TestTableSnapshotInputFormat.java:178) > Caused by: java.lang.ClassNotFoundException: > org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo > at > org.apache.hadoop.hbase.mapred.TestTableSnapshotInputFormat.testWithMockedMapReduce(TestTableSnapshotInputFormat.java:178) > {code} > This was due to lack of dependency on hadoop-hdfs module in the hadoop-3.0 > profile of hbase-mapreduce/pom.xml -- This message was sent by Atlassian JIRA (v7.6.3#76005)