HDFS-13065. TestErasureCodingMultipleRacks#testSkewedRack3 is failing. Contributed by Gabor Bota.
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@ -21,6 +21,7 @@ import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.BlockLocation;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy;
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import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyRackFaultTolerant;
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@ -163,7 +164,8 @@ public class TestErasureCodingMultipleRacks {
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// Create enough extra DNs on the 2 racks to test even placement.
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// Desired placement is parityUnits replicas on the 2 racks, and 1 replica
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// on the rest of the racks (which only have 1 DN)
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setupCluster(dataUnits + parityUnits * 4, dataUnits - parityUnits + 2,
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int numRacks = dataUnits - parityUnits + 2;
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setupCluster(dataUnits + parityUnits * 4, numRacks,
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dataUnits - parityUnits);
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final int filesize = ecPolicy.getNumDataUnits() * ecPolicy.getCellSize();
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@ -173,6 +175,10 @@ public class TestErasureCodingMultipleRacks {
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final Path path = new Path("/testfile" + i);
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LOG.info("Writing file " + path);
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DFSTestUtil.writeFile(dfs, path, contents);
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ExtendedBlock extendedBlock = DFSTestUtil.getFirstBlock(dfs, path);
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// Wait for replication to finish before testing
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DFSTestUtil.waitForReplication(cluster, extendedBlock, numRacks,
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ecPolicy.getNumDataUnits() + ecPolicy.getNumParityUnits(), 0);
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BlockLocation[] blocks =
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dfs.getFileBlockLocations(path, 0, Long.MAX_VALUE);
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assertEquals(ecPolicy.getNumDataUnits() + ecPolicy.getNumParityUnits(),
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